./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_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_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/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 789e632c72b5108c711cbdfccbf18346eae177df ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/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 789e632c72b5108c711cbdfccbf18346eae177df ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:58,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:58,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:58,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:58,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:58,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:58,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:58,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:58,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:58,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:58,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:58,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:58,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:58,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:58,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:58,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:58,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:58,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:58,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:58,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:58,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:58,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:58,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:58,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:58,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:58,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:58,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:58,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:58,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:58,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:58,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:58,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:58,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:58,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:58,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:58,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:58,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:58,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:58,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:58,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:58,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:58,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:58:58,965 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:58,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:58,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:58,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:58,967 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:58,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:58,967 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:58,967 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:58,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:58,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:58,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:58,968 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:58,968 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:58,968 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:58:58,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:58,969 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:58,969 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:58,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:58,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:58,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:58,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:58,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:58,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:58,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:58,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:58,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:58,974 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_ac7b5a32-cdc9-4661-8589-66303b6cc74a/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 -> 789e632c72b5108c711cbdfccbf18346eae177df [2019-10-22 08:58:59,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:59,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:59,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:59,029 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:59,030 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:59,030 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-10-22 08:58:59,075 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/b656fb45c/d0d6abf1a84745d0848fc57c307db9b0/FLAG446541005 [2019-10-22 08:58:59,522 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:59,522 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-10-22 08:58:59,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/b656fb45c/d0d6abf1a84745d0848fc57c307db9b0/FLAG446541005 [2019-10-22 08:58:59,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/b656fb45c/d0d6abf1a84745d0848fc57c307db9b0 [2019-10-22 08:58:59,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:59,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:59,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:59,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:59,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:59,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:59" (1/1) ... [2019-10-22 08:58:59,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbb75d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:59, skipping insertion in model container [2019-10-22 08:58:59,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:59" (1/1) ... [2019-10-22 08:58:59,561 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:59,595 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:59,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:59,983 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:00,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:00,092 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:00,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00 WrapperNode [2019-10-22 08:59:00,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:00,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:00,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:00,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:00,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... [2019-10-22 08:59:00,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... [2019-10-22 08:59:00,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... [2019-10-22 08:59:00,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... [2019-10-22 08:59:00,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... [2019-10-22 08:59:00,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... [2019-10-22 08:59:00,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... [2019-10-22 08:59:00,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:00,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:00,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:00,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:00,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:59:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:59:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:59:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:59:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:59:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:59:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:59:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:59:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:59:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:59:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:59:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:59:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:59:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:59:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:59:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:59:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:59:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:59:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:59:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:59:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:59:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:59:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:59:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:59:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:59:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:59:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:59:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:59:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:59:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:59:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:59:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:59:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:59:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:59:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:59:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:59:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:59:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:59:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:59:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:59:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:59:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:59:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:59:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:59:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:59:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:59:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:59:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:59:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:59:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:59:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:00,911 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:00,912 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-10-22 08:59:00,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:00 BoogieIcfgContainer [2019-10-22 08:59:00,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:00,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:00,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:00,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:00,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:59" (1/3) ... [2019-10-22 08:59:00,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4d245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:00, skipping insertion in model container [2019-10-22 08:59:00,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:00" (2/3) ... [2019-10-22 08:59:00,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db4d245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:00, skipping insertion in model container [2019-10-22 08:59:00,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:00" (3/3) ... [2019-10-22 08:59:00,924 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-1.i [2019-10-22 08:59:00,934 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:00,943 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2019-10-22 08:59:00,958 INFO L249 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2019-10-22 08:59:00,978 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:00,978 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:59:00,978 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:00,979 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:00,985 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:00,985 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:00,985 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:00,986 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-10-22 08:59:01,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:59:01,020 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:01,021 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:01,023 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:01,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:01,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2032838140, now seen corresponding path program 1 times [2019-10-22 08:59:01,039 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:01,039 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842049683] [2019-10-22 08:59:01,040 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,040 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:01,229 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842049683] [2019-10-22 08:59:01,230 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:01,230 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:01,230 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861078321] [2019-10-22 08:59:01,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:01,236 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:01,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:01,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:01,252 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 4 states. [2019-10-22 08:59:01,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:01,666 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2019-10-22 08:59:01,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:01,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 08:59:01,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:01,678 INFO L225 Difference]: With dead ends: 145 [2019-10-22 08:59:01,679 INFO L226 Difference]: Without dead ends: 141 [2019-10-22 08:59:01,680 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-10-22 08:59:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2019-10-22 08:59:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-22 08:59:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2019-10-22 08:59:01,726 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 7 [2019-10-22 08:59:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:01,727 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2019-10-22 08:59:01,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:01,727 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2019-10-22 08:59:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:59:01,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:01,728 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:01,728 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:01,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:01,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2032838141, now seen corresponding path program 1 times [2019-10-22 08:59:01,729 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:01,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478275068] [2019-10-22 08:59:01,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:01,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478275068] [2019-10-22 08:59:01,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:01,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:01,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604272313] [2019-10-22 08:59:01,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:01,796 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:01,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:01,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:01,797 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand 4 states. [2019-10-22 08:59:02,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:02,109 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2019-10-22 08:59:02,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:02,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-10-22 08:59:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:02,112 INFO L225 Difference]: With dead ends: 154 [2019-10-22 08:59:02,112 INFO L226 Difference]: Without dead ends: 154 [2019-10-22 08:59:02,113 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:02,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-22 08:59:02,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2019-10-22 08:59:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-10-22 08:59:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2019-10-22 08:59:02,128 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 7 [2019-10-22 08:59:02,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:02,128 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2019-10-22 08:59:02,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2019-10-22 08:59:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:59:02,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:02,129 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:02,130 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:02,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:02,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1101489147, now seen corresponding path program 1 times [2019-10-22 08:59:02,130 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:02,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344968542] [2019-10-22 08:59:02,131 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:02,131 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:02,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:02,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344968542] [2019-10-22 08:59:02,252 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:02,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:59:02,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736730694] [2019-10-22 08:59:02,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:02,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:02,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:02,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:02,258 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand 5 states. [2019-10-22 08:59:02,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:02,539 INFO L93 Difference]: Finished difference Result 142 states and 150 transitions. [2019-10-22 08:59:02,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:02,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-22 08:59:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:02,540 INFO L225 Difference]: With dead ends: 142 [2019-10-22 08:59:02,541 INFO L226 Difference]: Without dead ends: 142 [2019-10-22 08:59:02,541 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:02,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-10-22 08:59:02,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2019-10-22 08:59:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-10-22 08:59:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 137 transitions. [2019-10-22 08:59:02,557 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 137 transitions. Word has length 13 [2019-10-22 08:59:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:02,557 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 137 transitions. [2019-10-22 08:59:02,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 137 transitions. [2019-10-22 08:59:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:59:02,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:02,558 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:02,558 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:02,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:02,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1101489146, now seen corresponding path program 1 times [2019-10-22 08:59:02,559 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:02,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002239745] [2019-10-22 08:59:02,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:02,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:02,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:02,701 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002239745] [2019-10-22 08:59:02,702 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:02,702 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:59:02,702 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583738704] [2019-10-22 08:59:02,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:59:02,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:02,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:59:02,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:59:02,703 INFO L87 Difference]: Start difference. First operand 128 states and 137 transitions. Second operand 7 states. [2019-10-22 08:59:03,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:03,096 INFO L93 Difference]: Finished difference Result 166 states and 176 transitions. [2019-10-22 08:59:03,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:03,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-10-22 08:59:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:03,097 INFO L225 Difference]: With dead ends: 166 [2019-10-22 08:59:03,097 INFO L226 Difference]: Without dead ends: 166 [2019-10-22 08:59:03,098 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:59:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-10-22 08:59:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 137. [2019-10-22 08:59:03,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-10-22 08:59:03,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2019-10-22 08:59:03,107 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 13 [2019-10-22 08:59:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:03,107 INFO L462 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2019-10-22 08:59:03,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:59:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2019-10-22 08:59:03,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:59:03,108 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:03,108 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:03,109 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:03,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:03,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1969115576, now seen corresponding path program 1 times [2019-10-22 08:59:03,110 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:03,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835676487] [2019-10-22 08:59:03,110 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,110 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:03,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835676487] [2019-10-22 08:59:03,169 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:03,169 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:03,169 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607273958] [2019-10-22 08:59:03,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:03,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:03,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:03,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:03,170 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand 6 states. [2019-10-22 08:59:03,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:03,540 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2019-10-22 08:59:03,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:03,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-10-22 08:59:03,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:03,541 INFO L225 Difference]: With dead ends: 183 [2019-10-22 08:59:03,541 INFO L226 Difference]: Without dead ends: 183 [2019-10-22 08:59:03,542 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:59:03,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-10-22 08:59:03,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 136. [2019-10-22 08:59:03,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 08:59:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2019-10-22 08:59:03,549 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 15 [2019-10-22 08:59:03,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:03,549 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2019-10-22 08:59:03,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:03,549 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2019-10-22 08:59:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:59:03,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:03,550 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:03,550 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:03,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:03,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1969115575, now seen corresponding path program 1 times [2019-10-22 08:59:03,551 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:03,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632111404] [2019-10-22 08:59:03,551 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,551 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:03,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:03,631 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632111404] [2019-10-22 08:59:03,631 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:03,631 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:03,631 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734045748] [2019-10-22 08:59:03,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:03,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:03,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:03,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:03,632 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand 6 states. [2019-10-22 08:59:04,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:04,031 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2019-10-22 08:59:04,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:04,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-10-22 08:59:04,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:04,032 INFO L225 Difference]: With dead ends: 206 [2019-10-22 08:59:04,032 INFO L226 Difference]: Without dead ends: 206 [2019-10-22 08:59:04,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-10-22 08:59:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 135. [2019-10-22 08:59:04,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-10-22 08:59:04,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 145 transitions. [2019-10-22 08:59:04,050 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 145 transitions. Word has length 15 [2019-10-22 08:59:04,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:04,050 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 145 transitions. [2019-10-22 08:59:04,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:04,050 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2019-10-22 08:59:04,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:59:04,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:04,051 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:04,051 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:04,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:04,051 INFO L82 PathProgramCache]: Analyzing trace with hash -367902966, now seen corresponding path program 1 times [2019-10-22 08:59:04,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:04,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969506294] [2019-10-22 08:59:04,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:04,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969506294] [2019-10-22 08:59:04,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:04,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-22 08:59:04,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326906110] [2019-10-22 08:59:04,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:59:04,173 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:04,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:59:04,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:59:04,174 INFO L87 Difference]: Start difference. First operand 135 states and 145 transitions. Second operand 10 states. [2019-10-22 08:59:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:04,644 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2019-10-22 08:59:04,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:59:04,645 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-10-22 08:59:04,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:04,646 INFO L225 Difference]: With dead ends: 147 [2019-10-22 08:59:04,646 INFO L226 Difference]: Without dead ends: 147 [2019-10-22 08:59:04,646 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:59:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-10-22 08:59:04,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 134. [2019-10-22 08:59:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-22 08:59:04,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2019-10-22 08:59:04,651 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 19 [2019-10-22 08:59:04,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:04,652 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2019-10-22 08:59:04,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:59:04,652 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2019-10-22 08:59:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:59:04,652 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:04,652 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:04,653 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:04,653 INFO L82 PathProgramCache]: Analyzing trace with hash -367902965, now seen corresponding path program 1 times [2019-10-22 08:59:04,654 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:04,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595137238] [2019-10-22 08:59:04,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:04,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:04,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595137238] [2019-10-22 08:59:04,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:04,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-22 08:59:04,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258064884] [2019-10-22 08:59:04,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:59:04,794 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:04,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:59:04,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:04,795 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand 11 states. [2019-10-22 08:59:05,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:05,585 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2019-10-22 08:59:05,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-22 08:59:05,585 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-10-22 08:59:05,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:05,586 INFO L225 Difference]: With dead ends: 158 [2019-10-22 08:59:05,586 INFO L226 Difference]: Without dead ends: 158 [2019-10-22 08:59:05,587 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-10-22 08:59:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-10-22 08:59:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 136. [2019-10-22 08:59:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 08:59:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 146 transitions. [2019-10-22 08:59:05,599 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 146 transitions. Word has length 19 [2019-10-22 08:59:05,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:05,599 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 146 transitions. [2019-10-22 08:59:05,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:59:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 146 transitions. [2019-10-22 08:59:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:59:05,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:05,600 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] [2019-10-22 08:59:05,601 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:05,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:05,601 INFO L82 PathProgramCache]: Analyzing trace with hash -2104302876, now seen corresponding path program 1 times [2019-10-22 08:59:05,602 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:05,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364121469] [2019-10-22 08:59:05,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:05,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364121469] [2019-10-22 08:59:05,669 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:05,669 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:05,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914960969] [2019-10-22 08:59:05,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:05,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:05,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:05,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:05,671 INFO L87 Difference]: Start difference. First operand 136 states and 146 transitions. Second operand 5 states. [2019-10-22 08:59:05,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:05,895 INFO L93 Difference]: Finished difference Result 157 states and 166 transitions. [2019-10-22 08:59:05,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:05,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-22 08:59:05,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:05,896 INFO L225 Difference]: With dead ends: 157 [2019-10-22 08:59:05,896 INFO L226 Difference]: Without dead ends: 157 [2019-10-22 08:59:05,897 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-22 08:59:05,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 136. [2019-10-22 08:59:05,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 08:59:05,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 144 transitions. [2019-10-22 08:59:05,902 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 144 transitions. Word has length 22 [2019-10-22 08:59:05,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:05,902 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 144 transitions. [2019-10-22 08:59:05,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:05,902 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 144 transitions. [2019-10-22 08:59:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:59:05,903 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:05,903 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:05,904 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:05,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:05,904 INFO L82 PathProgramCache]: Analyzing trace with hash 85533368, now seen corresponding path program 1 times [2019-10-22 08:59:05,904 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:05,904 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596282643] [2019-10-22 08:59:05,904 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,904 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:05,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:06,025 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596282643] [2019-10-22 08:59:06,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357427572] [2019-10-22 08:59:06,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:06,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-22 08:59:06,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:06,206 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 08:59:06,206 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,221 INFO L567 ElimStorePlain]: treesize reduction 3, result has 88.0 percent of original size [2019-10-22 08:59:06,225 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 08:59:06,225 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,231 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:06,231 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,231 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:18 [2019-10-22 08:59:06,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,257 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 20 [2019-10-22 08:59:06,257 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,280 INFO L567 ElimStorePlain]: treesize reduction 5, result has 88.9 percent of original size [2019-10-22 08:59:06,284 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,285 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 20 [2019-10-22 08:59:06,286 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,296 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:06,296 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,296 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:36 [2019-10-22 08:59:06,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,328 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,329 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,331 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-10-22 08:59:06,331 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,345 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:06,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,350 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,351 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:06,352 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2019-10-22 08:59:06,353 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,363 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:06,363 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,364 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:74, output treesize:36 [2019-10-22 08:59:06,396 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-10-22 08:59:06,397 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,404 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:06,407 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:06,408 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2019-10-22 08:59:06,409 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:06,412 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:06,413 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 08:59:06,413 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:7 [2019-10-22 08:59:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:06,417 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:06,417 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2019-10-22 08:59:06,417 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513783125] [2019-10-22 08:59:06,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 08:59:06,418 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:06,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 08:59:06,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:06,418 INFO L87 Difference]: Start difference. First operand 136 states and 144 transitions. Second operand 11 states. [2019-10-22 08:59:06,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:06,968 INFO L93 Difference]: Finished difference Result 190 states and 203 transitions. [2019-10-22 08:59:06,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 08:59:06,969 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2019-10-22 08:59:06,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:06,970 INFO L225 Difference]: With dead ends: 190 [2019-10-22 08:59:06,970 INFO L226 Difference]: Without dead ends: 190 [2019-10-22 08:59:06,970 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2019-10-22 08:59:06,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-10-22 08:59:06,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 150. [2019-10-22 08:59:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-10-22 08:59:06,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2019-10-22 08:59:06,975 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 25 [2019-10-22 08:59:06,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:06,975 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2019-10-22 08:59:06,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 08:59:06,975 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2019-10-22 08:59:06,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:59:06,976 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:06,976 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:07,176 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:07,177 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:07,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:07,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1467300694, now seen corresponding path program 1 times [2019-10-22 08:59:07,177 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:07,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703357820] [2019-10-22 08:59:07,178 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,178 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:07,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703357820] [2019-10-22 08:59:07,261 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:07,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:59:07,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610646353] [2019-10-22 08:59:07,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:07,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:07,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:07,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:07,262 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand 6 states. [2019-10-22 08:59:07,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:07,488 INFO L93 Difference]: Finished difference Result 153 states and 161 transitions. [2019-10-22 08:59:07,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:07,488 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-10-22 08:59:07,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:07,489 INFO L225 Difference]: With dead ends: 153 [2019-10-22 08:59:07,489 INFO L226 Difference]: Without dead ends: 153 [2019-10-22 08:59:07,489 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 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 08:59:07,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-10-22 08:59:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 149. [2019-10-22 08:59:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-10-22 08:59:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 157 transitions. [2019-10-22 08:59:07,493 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 157 transitions. Word has length 26 [2019-10-22 08:59:07,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:07,493 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 157 transitions. [2019-10-22 08:59:07,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 157 transitions. [2019-10-22 08:59:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:59:07,494 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:07,494 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:07,495 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:07,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:07,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1487911483, now seen corresponding path program 1 times [2019-10-22 08:59:07,495 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:07,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120767623] [2019-10-22 08:59:07,495 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,495 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:07,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120767623] [2019-10-22 08:59:07,548 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:07,549 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:07,549 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089154824] [2019-10-22 08:59:07,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:07,549 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:07,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:07,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:07,550 INFO L87 Difference]: Start difference. First operand 149 states and 157 transitions. Second operand 6 states. [2019-10-22 08:59:07,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:07,847 INFO L93 Difference]: Finished difference Result 213 states and 226 transitions. [2019-10-22 08:59:07,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:59:07,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-10-22 08:59:07,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:07,848 INFO L225 Difference]: With dead ends: 213 [2019-10-22 08:59:07,848 INFO L226 Difference]: Without dead ends: 213 [2019-10-22 08:59:07,848 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:59:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-10-22 08:59:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 148. [2019-10-22 08:59:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-10-22 08:59:07,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2019-10-22 08:59:07,852 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 26 [2019-10-22 08:59:07,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:07,852 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2019-10-22 08:59:07,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:07,852 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2019-10-22 08:59:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:59:07,853 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:07,853 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:07,854 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:07,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:07,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1487911482, now seen corresponding path program 1 times [2019-10-22 08:59:07,854 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:07,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973380286] [2019-10-22 08:59:07,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,855 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:07,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:07,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:07,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973380286] [2019-10-22 08:59:07,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:07,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:07,919 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035730348] [2019-10-22 08:59:07,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:59:07,920 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:07,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:59:07,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:59:07,920 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 6 states. [2019-10-22 08:59:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:08,227 INFO L93 Difference]: Finished difference Result 239 states and 253 transitions. [2019-10-22 08:59:08,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:59:08,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-10-22 08:59:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:08,229 INFO L225 Difference]: With dead ends: 239 [2019-10-22 08:59:08,229 INFO L226 Difference]: Without dead ends: 239 [2019-10-22 08:59:08,229 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:59:08,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-10-22 08:59:08,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 147. [2019-10-22 08:59:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-22 08:59:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 155 transitions. [2019-10-22 08:59:08,232 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 155 transitions. Word has length 26 [2019-10-22 08:59:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:08,233 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 155 transitions. [2019-10-22 08:59:08,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:59:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 155 transitions. [2019-10-22 08:59:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:59:08,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:08,234 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 08:59:08,234 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:08,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1452074887, now seen corresponding path program 1 times [2019-10-22 08:59:08,234 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:08,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859179764] [2019-10-22 08:59:08,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:08,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:08,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:08,389 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859179764] [2019-10-22 08:59:08,389 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:08,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-22 08:59:08,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219234327] [2019-10-22 08:59:08,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-22 08:59:08,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:08,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-22 08:59:08,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-22 08:59:08,390 INFO L87 Difference]: Start difference. First operand 147 states and 155 transitions. Second operand 13 states. [2019-10-22 08:59:08,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:08,911 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2019-10-22 08:59:08,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:59:08,911 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2019-10-22 08:59:08,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:08,912 INFO L225 Difference]: With dead ends: 146 [2019-10-22 08:59:08,912 INFO L226 Difference]: Without dead ends: 146 [2019-10-22 08:59:08,912 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2019-10-22 08:59:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-10-22 08:59:08,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-10-22 08:59:08,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-22 08:59:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2019-10-22 08:59:08,916 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 30 [2019-10-22 08:59:08,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:08,916 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2019-10-22 08:59:08,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-22 08:59:08,916 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2019-10-22 08:59:08,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:59:08,917 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:08,917 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 08:59:08,917 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:08,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:08,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1452074888, now seen corresponding path program 1 times [2019-10-22 08:59:08,918 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:08,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102391382] [2019-10-22 08:59:08,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:08,918 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:08,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:09,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102391382] [2019-10-22 08:59:09,090 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:09,091 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-22 08:59:09,091 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106347579] [2019-10-22 08:59:09,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-22 08:59:09,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:09,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-22 08:59:09,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:59:09,092 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand 14 states. [2019-10-22 08:59:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:09,668 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2019-10-22 08:59:09,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-22 08:59:09,668 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2019-10-22 08:59:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:09,669 INFO L225 Difference]: With dead ends: 141 [2019-10-22 08:59:09,669 INFO L226 Difference]: Without dead ends: 141 [2019-10-22 08:59:09,669 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=555, Unknown=0, NotChecked=0, Total=702 [2019-10-22 08:59:09,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-10-22 08:59:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 124. [2019-10-22 08:59:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-22 08:59:09,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 131 transitions. [2019-10-22 08:59:09,673 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 131 transitions. Word has length 30 [2019-10-22 08:59:09,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:09,673 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 131 transitions. [2019-10-22 08:59:09,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-22 08:59:09,673 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 131 transitions. [2019-10-22 08:59:09,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:59:09,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:09,674 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 08:59:09,674 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:09,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:09,675 INFO L82 PathProgramCache]: Analyzing trace with hash -632721643, now seen corresponding path program 1 times [2019-10-22 08:59:09,675 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:09,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892932909] [2019-10-22 08:59:09,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:09,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892932909] [2019-10-22 08:59:09,728 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:09,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:09,728 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432881968] [2019-10-22 08:59:09,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:09,729 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:09,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:09,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:09,729 INFO L87 Difference]: Start difference. First operand 124 states and 131 transitions. Second operand 4 states. [2019-10-22 08:59:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:09,857 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2019-10-22 08:59:09,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:09,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 08:59:09,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:09,858 INFO L225 Difference]: With dead ends: 126 [2019-10-22 08:59:09,858 INFO L226 Difference]: Without dead ends: 126 [2019-10-22 08:59:09,859 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:09,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-22 08:59:09,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-22 08:59:09,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-22 08:59:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 133 transitions. [2019-10-22 08:59:09,863 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 133 transitions. Word has length 31 [2019-10-22 08:59:09,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:09,863 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 133 transitions. [2019-10-22 08:59:09,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 133 transitions. [2019-10-22 08:59:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:59:09,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:09,864 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] [2019-10-22 08:59:09,865 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:09,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1156181118, now seen corresponding path program 1 times [2019-10-22 08:59:09,865 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:09,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558653180] [2019-10-22 08:59:09,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:09,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:09,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:09,938 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558653180] [2019-10-22 08:59:09,938 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477476812] [2019-10-22 08:59:09,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:10,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:59:10,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:10,059 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-10-22 08:59:10,059 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:10,062 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:10,062 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:10,062 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-10-22 08:59:10,067 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2019-10-22 08:59:10,067 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:10,068 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:10,068 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:10,069 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2019-10-22 08:59:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:10,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:59:10,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 10 [2019-10-22 08:59:10,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201291286] [2019-10-22 08:59:10,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:10,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:10,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:10,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:59:10,079 INFO L87 Difference]: Start difference. First operand 126 states and 133 transitions. Second operand 4 states. [2019-10-22 08:59:10,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:10,136 INFO L93 Difference]: Finished difference Result 135 states and 142 transitions. [2019-10-22 08:59:10,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:10,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2019-10-22 08:59:10,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:10,136 INFO L225 Difference]: With dead ends: 135 [2019-10-22 08:59:10,137 INFO L226 Difference]: Without dead ends: 135 [2019-10-22 08:59:10,137 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:59:10,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-22 08:59:10,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2019-10-22 08:59:10,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-10-22 08:59:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2019-10-22 08:59:10,140 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 33 [2019-10-22 08:59:10,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:10,140 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 136 transitions. [2019-10-22 08:59:10,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:10,140 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 136 transitions. [2019-10-22 08:59:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 08:59:10,141 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:10,141 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:10,341 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:10,342 INFO L410 AbstractCegarLoop]: === Iteration 18 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:10,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:10,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1201292218, now seen corresponding path program 1 times [2019-10-22 08:59:10,342 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:10,342 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628694945] [2019-10-22 08:59:10,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:10,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:10,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:10,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628694945] [2019-10-22 08:59:10,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025984083] [2019-10-22 08:59:10,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:10,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 32 conjunts are in the unsatisfiable core [2019-10-22 08:59:10,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:10,614 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 19 treesize of output 1 [2019-10-22 08:59:10,614 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:10,615 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:10,615 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:10,616 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2019-10-22 08:59:10,753 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:10,754 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 15 treesize of output 15 [2019-10-22 08:59:10,754 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-22 08:59:10,766 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:10,773 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:10,773 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 15 treesize of output 15 [2019-10-22 08:59:10,773 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-10-22 08:59:10,784 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:10,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:10,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:10,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:10,792 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-10-22 08:59:10,792 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:37 [2019-10-22 08:59:10,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:10,870 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:10,871 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2019-10-22 08:59:10,871 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753558639] [2019-10-22 08:59:10,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-22 08:59:10,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:10,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-22 08:59:10,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2019-10-22 08:59:10,872 INFO L87 Difference]: Start difference. First operand 129 states and 136 transitions. Second operand 17 states. [2019-10-22 08:59:12,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:12,025 INFO L93 Difference]: Finished difference Result 182 states and 192 transitions. [2019-10-22 08:59:12,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-22 08:59:12,025 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 34 [2019-10-22 08:59:12,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:12,026 INFO L225 Difference]: With dead ends: 182 [2019-10-22 08:59:12,026 INFO L226 Difference]: Without dead ends: 182 [2019-10-22 08:59:12,026 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2019-10-22 08:59:12,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-10-22 08:59:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 140. [2019-10-22 08:59:12,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-22 08:59:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 149 transitions. [2019-10-22 08:59:12,030 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 149 transitions. Word has length 34 [2019-10-22 08:59:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:12,030 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 149 transitions. [2019-10-22 08:59:12,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-22 08:59:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 149 transitions. [2019-10-22 08:59:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 08:59:12,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:12,031 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 08:59:12,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:12,232 INFO L410 AbstractCegarLoop]: === Iteration 19 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:12,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:12,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1414647280, now seen corresponding path program 1 times [2019-10-22 08:59:12,232 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:12,232 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070842710] [2019-10-22 08:59:12,232 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,232 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:12,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070842710] [2019-10-22 08:59:12,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836966176] [2019-10-22 08:59:12,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:12,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:59:12,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 08:59:12,421 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:12,421 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-10-22 08:59:12,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304120116] [2019-10-22 08:59:12,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:59:12,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:12,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:59:12,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:59:12,422 INFO L87 Difference]: Start difference. First operand 140 states and 149 transitions. Second operand 7 states. [2019-10-22 08:59:12,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:12,548 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2019-10-22 08:59:12,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:12,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-10-22 08:59:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:12,549 INFO L225 Difference]: With dead ends: 148 [2019-10-22 08:59:12,549 INFO L226 Difference]: Without dead ends: 125 [2019-10-22 08:59:12,550 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:59:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-22 08:59:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-10-22 08:59:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-22 08:59:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2019-10-22 08:59:12,552 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 35 [2019-10-22 08:59:12,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:12,552 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2019-10-22 08:59:12,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:59:12,552 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2019-10-22 08:59:12,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:59:12,553 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:12,553 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:12,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:12,755 INFO L410 AbstractCegarLoop]: === Iteration 20 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:12,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1427438640, now seen corresponding path program 1 times [2019-10-22 08:59:12,755 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:12,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184230021] [2019-10-22 08:59:12,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:12,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184230021] [2019-10-22 08:59:12,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107488853] [2019-10-22 08:59:12,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:13,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 28 conjunts are in the unsatisfiable core [2019-10-22 08:59:13,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:13,086 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:13,087 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 17 treesize of output 39 [2019-10-22 08:59:13,087 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:13,102 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-10-22 08:59:13,102 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:13,103 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2019-10-22 08:59:13,126 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 08:59:13,126 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:13,134 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:13,135 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 08:59:13,135 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2019-10-22 08:59:13,203 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:13,203 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 57 [2019-10-22 08:59:13,204 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:59:13,204 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:13,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:13,206 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-10-22 08:59:13,249 INFO L567 ElimStorePlain]: treesize reduction 136, result has 24.0 percent of original size [2019-10-22 08:59:13,249 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:13,250 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:42 [2019-10-22 08:59:13,398 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:13,398 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 110 [2019-10-22 08:59:13,400 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:13,438 INFO L567 ElimStorePlain]: treesize reduction 54, result has 44.9 percent of original size [2019-10-22 08:59:13,439 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 08:59:13,439 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:29 [2019-10-22 08:59:13,496 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-10-22 08:59:13,496 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 79 [2019-10-22 08:59:13,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:59:13,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:13,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:13,499 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-10-22 08:59:13,543 INFO L567 ElimStorePlain]: treesize reduction 82, result has 29.9 percent of original size [2019-10-22 08:59:13,544 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:13,544 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:34 [2019-10-22 08:59:13,662 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:13,662 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2019-10-22 08:59:13,663 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:13,671 INFO L567 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2019-10-22 08:59:13,672 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:59:13,672 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:15 [2019-10-22 08:59:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:13,720 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:59:13,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 24 [2019-10-22 08:59:13,720 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028430243] [2019-10-22 08:59:13,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-22 08:59:13,720 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:13,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-22 08:59:13,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2019-10-22 08:59:13,721 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand 25 states. [2019-10-22 08:59:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:14,700 INFO L93 Difference]: Finished difference Result 220 states and 235 transitions. [2019-10-22 08:59:14,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-22 08:59:14,701 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 45 [2019-10-22 08:59:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:14,702 INFO L225 Difference]: With dead ends: 220 [2019-10-22 08:59:14,702 INFO L226 Difference]: Without dead ends: 220 [2019-10-22 08:59:14,703 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=315, Invalid=1165, Unknown=2, NotChecked=0, Total=1482 [2019-10-22 08:59:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-10-22 08:59:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 158. [2019-10-22 08:59:14,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-22 08:59:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 170 transitions. [2019-10-22 08:59:14,707 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 170 transitions. Word has length 45 [2019-10-22 08:59:14,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:14,707 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 170 transitions. [2019-10-22 08:59:14,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-22 08:59:14,707 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 170 transitions. [2019-10-22 08:59:14,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 08:59:14,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:14,710 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:14,910 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:14,911 INFO L410 AbstractCegarLoop]: === Iteration 21 === [mainErr46REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr40REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr54REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr33REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr49REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION]=== [2019-10-22 08:59:14,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:14,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1427438639, now seen corresponding path program 1 times [2019-10-22 08:59:14,912 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:14,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601281283] [2019-10-22 08:59:14,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:14,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:14,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:15,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:15,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601281283] [2019-10-22 08:59:15,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661392120] [2019-10-22 08:59:15,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:15,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 45 conjunts are in the unsatisfiable core [2019-10-22 08:59:15,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:15,396 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:15,397 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 19 treesize of output 42 [2019-10-22 08:59:15,397 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,435 INFO L567 ElimStorePlain]: treesize reduction 16, result has 74.6 percent of original size [2019-10-22 08:59:15,453 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:15,453 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 19 treesize of output 42 [2019-10-22 08:59:15,454 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,495 INFO L567 ElimStorePlain]: treesize reduction 24, result has 64.2 percent of original size [2019-10-22 08:59:15,496 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,496 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:43 [2019-10-22 08:59:15,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:15,551 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:15,556 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 84 treesize of output 68 [2019-10-22 08:59:15,557 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:15,569 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:15,580 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:15,580 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 84 [2019-10-22 08:59:15,581 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,666 INFO L567 ElimStorePlain]: treesize reduction 32, result has 78.4 percent of original size [2019-10-22 08:59:15,672 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:15,679 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:15,686 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:15,687 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 60 [2019-10-22 08:59:15,687 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,692 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-22 08:59:15,694 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2019-10-22 08:59:15,695 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,756 INFO L567 ElimStorePlain]: treesize reduction 12, result has 86.0 percent of original size [2019-10-22 08:59:15,757 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-22 08:59:15,757 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:170, output treesize:74 [2019-10-22 08:59:15,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:15,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:59:15,958 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_2, v_prenex_3], 2=[|#memory_$Pointer$.base|, |#memory_$Pointer$.offset|]} [2019-10-22 08:59:15,961 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2019-10-22 08:59:15,962 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:15,978 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:15,982 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-10-22 08:59:15,982 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:16,002 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:16,011 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:16,012 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 62 [2019-10-22 08:59:16,012 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 08:59:16,039 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:59:16,240 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:59:16,241 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:236) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:74) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-22 08:59:16,244 INFO L168 Benchmark]: Toolchain (without parser) took 16696.23 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 368.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 223.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:16,245 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:16,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:16,246 INFO L168 Benchmark]: Boogie Preprocessor took 53.76 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:16,247 INFO L168 Benchmark]: RCFGBuilder took 767.06 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: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:16,247 INFO L168 Benchmark]: TraceAbstraction took 15327.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -24.4 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:16,248 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 544.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -195.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.76 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 767.06 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: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15327.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -24.4 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:18,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:18,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:18,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:18,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:18,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:18,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:18,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:18,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:18,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:18,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:18,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:18,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:18,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:18,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:18,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:18,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:18,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:18,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:18,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:18,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:18,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:18,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:18,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:18,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:18,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:18,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:18,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:18,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:18,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:18,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:18,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:18,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:18,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:18,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:18,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:18,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:18,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:18,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:18,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:18,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:18,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-10-22 08:59:18,433 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:18,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:18,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:18,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:18,434 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:18,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:18,435 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:18,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:18,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:18,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:18,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:18,435 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:59:18,435 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:59:18,436 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:59:18,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:18,436 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:59:18,436 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:59:18,436 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:18,436 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:18,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:18,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:18,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:18,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:18,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:18,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:18,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:18,439 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:59:18,439 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:59:18,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:59:18,439 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_ac7b5a32-cdc9-4661-8589-66303b6cc74a/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 -> 789e632c72b5108c711cbdfccbf18346eae177df [2019-10-22 08:59:18,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:18,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:18,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:18,491 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:18,491 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:18,491 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-10-22 08:59:18,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/bada490c9/e729304cd5b8471ba7468640b3740ef2/FLAGb4318b5ff [2019-10-22 08:59:18,961 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:18,962 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2019-10-22 08:59:18,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/bada490c9/e729304cd5b8471ba7468640b3740ef2/FLAGb4318b5ff [2019-10-22 08:59:19,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/data/bada490c9/e729304cd5b8471ba7468640b3740ef2 [2019-10-22 08:59:19,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:19,296 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:59:19,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:19,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:19,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:19,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e35e926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19, skipping insertion in model container [2019-10-22 08:59:19,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,316 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:19,368 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:19,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:19,772 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:19,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:19,882 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:19,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19 WrapperNode [2019-10-22 08:59:19,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:19,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:19,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:19,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:19,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... [2019-10-22 08:59:19,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:19,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:19,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:19,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:19,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:59:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:20,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:59:20,013 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:59:20,013 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:59:20,014 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:59:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:59:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:59:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:59:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:59:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:59:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:59:20,015 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:59:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:59:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:59:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:59:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:59:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:59:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:59:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:59:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:59:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:59:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:59:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:59:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:59:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:59:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:59:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:59:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:59:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:59:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:59:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:59:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:59:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:59:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:59:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:59:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:59:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:59:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:59:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:59:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:59:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:59:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:59:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:59:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:59:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:59:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:59:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:59:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:59:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:59:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:59:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:59:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:59:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:59:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:59:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:59:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:59:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:59:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:59:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:59:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:59:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:59:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:20,837 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:20,837 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-10-22 08:59:20,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:20 BoogieIcfgContainer [2019-10-22 08:59:20,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:20,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:20,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:20,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:20,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:19" (1/3) ... [2019-10-22 08:59:20,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288b69bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:20, skipping insertion in model container [2019-10-22 08:59:20,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:19" (2/3) ... [2019-10-22 08:59:20,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288b69bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:20, skipping insertion in model container [2019-10-22 08:59:20,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:20" (3/3) ... [2019-10-22 08:59:20,845 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-1.i [2019-10-22 08:59:20,854 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:20,862 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2019-10-22 08:59:20,872 INFO L249 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2019-10-22 08:59:20,888 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:20,889 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:59:20,889 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:20,889 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:20,890 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:20,890 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:20,890 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:20,890 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-10-22 08:59:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:59:20,923 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:20,924 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:20,926 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr9REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr35REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr46REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr59REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION]=== [2019-10-22 08:59:20,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:20,932 INFO L82 PathProgramCache]: Analyzing trace with hash 257769274, now seen corresponding path program 1 times [2019-10-22 08:59:20,941 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:59:20,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1271508943] [2019-10-22 08:59:20,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac7b5a32-cdc9-4661-8589-66303b6cc74a/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:59:21,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:59:21,175 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort C_DOUBLE not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:59:21,179 INFO L168 Benchmark]: Toolchain (without parser) took 1882.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -80.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:21,179 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:21,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:21,180 INFO L168 Benchmark]: Boogie Preprocessor took 73.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:21,183 INFO L168 Benchmark]: RCFGBuilder took 881.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:21,183 INFO L168 Benchmark]: TraceAbstraction took 337.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:21,186 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 583.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 881.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 337.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 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...