./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/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 aa779df617b83bdc7632b93a3c3bc0bbfee71559 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:59:04,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:04,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:05,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:05,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:05,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:05,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:05,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:05,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:05,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:05,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:05,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:05,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:05,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:05,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:05,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:05,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:05,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:05,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:05,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:05,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:05,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:05,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:05,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:05,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:05,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:05,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:05,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:05,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:05,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:05,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:05,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:05,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:05,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:05,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:05,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:05,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:05,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:05,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:05,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:05,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:05,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 02:59:05,200 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:05,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:05,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:05,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:05,202 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:05,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:05,202 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:59:05,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:59:05,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:05,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:59:05,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:05,203 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 02:59:05,207 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 02:59:05,207 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 02:59:05,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:59:05,208 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 02:59:05,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:59:05,208 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:05,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:05,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:05,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:59:05,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:59:05,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:59:05,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:05,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:59:05,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:05,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:59:05,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:05,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa779df617b83bdc7632b93a3c3bc0bbfee71559 [2020-11-28 02:59:05,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:05,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:05,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:05,508 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:05,509 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:05,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2020-11-28 02:59:05,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/data/75e08f09a/577d9ea8c23448fe9e95466feb2be940/FLAG4312cc962 [2020-11-28 02:59:06,130 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:06,133 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/sv-benchmarks/c/list-ext-properties/test-0158_1-1.i [2020-11-28 02:59:06,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/data/75e08f09a/577d9ea8c23448fe9e95466feb2be940/FLAG4312cc962 [2020-11-28 02:59:06,446 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/data/75e08f09a/577d9ea8c23448fe9e95466feb2be940 [2020-11-28 02:59:06,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:06,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 02:59:06,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:06,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:06,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:06,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:06,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165ec16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06, skipping insertion in model container [2020-11-28 02:59:06,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:06,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:06,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:06,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:06,858 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:06,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:06,980 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:06,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06 WrapperNode [2020-11-28 02:59:06,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:06,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:06,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:06,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:06,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:06,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:07,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:07,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:07,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:07,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:07,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... [2020-11-28 02:59:07,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:07,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:07,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:07,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:07,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/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 [2020-11-28 02:59:07,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 02:59:07,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:07,112 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 02:59:07,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 02:59:07,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 02:59:07,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 02:59:07,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 02:59:07,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 02:59:07,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 02:59:07,113 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 02:59:07,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 02:59:07,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 02:59:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 02:59:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 02:59:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:59:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 02:59:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 02:59:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 02:59:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 02:59:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 02:59:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 02:59:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 02:59:07,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 02:59:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 02:59:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 02:59:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 02:59:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 02:59:07,116 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 02:59:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 02:59:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 02:59:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 02:59:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 02:59:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 02:59:07,117 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 02:59:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 02:59:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 02:59:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 02:59:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 02:59:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 02:59:07,118 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 02:59:07,119 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 02:59:07,119 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 02:59:07,119 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 02:59:07,119 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 02:59:07,119 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 02:59:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 02:59:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 02:59:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 02:59:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 02:59:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 02:59:07,120 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 02:59:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 02:59:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 02:59:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 02:59:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 02:59:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 02:59:07,121 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 02:59:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 02:59:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 02:59:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 02:59:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 02:59:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 02:59:07,122 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 02:59:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 02:59:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 02:59:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 02:59:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 02:59:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 02:59:07,123 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 02:59:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 02:59:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 02:59:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 02:59:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 02:59:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 02:59:07,124 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 02:59:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 02:59:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 02:59:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 02:59:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 02:59:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 02:59:07,125 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 02:59:07,126 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 02:59:07,126 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 02:59:07,126 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 02:59:07,126 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 02:59:07,126 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 02:59:07,126 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 02:59:07,127 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 02:59:07,127 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 02:59:07,127 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 02:59:07,127 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 02:59:07,127 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 02:59:07,127 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 02:59:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 02:59:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 02:59:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 02:59:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 02:59:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 02:59:07,128 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 02:59:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 02:59:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 02:59:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 02:59:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 02:59:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 02:59:07,129 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 02:59:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 02:59:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 02:59:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 02:59:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 02:59:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 02:59:07,130 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 02:59:07,131 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 02:59:07,131 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 02:59:07,131 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 02:59:07,131 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 02:59:07,131 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 02:59:07,131 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 02:59:07,132 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 02:59:07,132 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 02:59:07,132 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 02:59:07,132 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 02:59:07,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 02:59:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 02:59:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 02:59:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 02:59:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:59:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:59:07,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 02:59:07,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:59:07,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 02:59:07,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:59:07,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:07,745 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:07,745 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 02:59:07,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:07 BoogieIcfgContainer [2020-11-28 02:59:07,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:07,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:59:07,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:59:07,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:59:07,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:06" (1/3) ... [2020-11-28 02:59:07,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6289e04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:07, skipping insertion in model container [2020-11-28 02:59:07,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:06" (2/3) ... [2020-11-28 02:59:07,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6289e04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:07, skipping insertion in model container [2020-11-28 02:59:07,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:07" (3/3) ... [2020-11-28 02:59:07,755 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-1.i [2020-11-28 02:59:07,766 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:59:07,770 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-11-28 02:59:07,781 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-11-28 02:59:07,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:59:07,801 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 02:59:07,801 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:59:07,802 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:07,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:07,802 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:59:07,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:07,802 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:59:07,815 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-28 02:59:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 02:59:07,822 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:07,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:07,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 02:59:07,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:07,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1140282237, now seen corresponding path program 1 times [2020-11-28 02:59:07,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:07,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897319464] [2020-11-28 02:59:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:08,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 02:59:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:08,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897319464] [2020-11-28 02:59:08,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:08,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:08,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061868722] [2020-11-28 02:59:08,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:08,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:08,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:08,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:08,111 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2020-11-28 02:59:08,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:08,239 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-11-28 02:59:08,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:08,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 02:59:08,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:08,249 INFO L225 Difference]: With dead ends: 32 [2020-11-28 02:59:08,249 INFO L226 Difference]: Without dead ends: 29 [2020-11-28 02:59:08,252 INFO L677 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 [2020-11-28 02:59:08,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-28 02:59:08,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-28 02:59:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-28 02:59:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-28 02:59:08,284 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 7 [2020-11-28 02:59:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:08,284 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-28 02:59:08,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-28 02:59:08,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 02:59:08,285 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:08,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:08,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:59:08,286 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 02:59:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:08,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1140282236, now seen corresponding path program 1 times [2020-11-28 02:59:08,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:08,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511250311] [2020-11-28 02:59:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:08,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 02:59:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:08,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511250311] [2020-11-28 02:59:08,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:08,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:08,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350306740] [2020-11-28 02:59:08,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:59:08,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:08,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:59:08,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:59:08,426 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 4 states. [2020-11-28 02:59:08,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:08,500 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2020-11-28 02:59:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:59:08,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 02:59:08,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:08,501 INFO L225 Difference]: With dead ends: 23 [2020-11-28 02:59:08,501 INFO L226 Difference]: Without dead ends: 23 [2020-11-28 02:59:08,502 INFO L677 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 [2020-11-28 02:59:08,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-28 02:59:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-28 02:59:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-28 02:59:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-11-28 02:59:08,506 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 7 [2020-11-28 02:59:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:08,506 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-11-28 02:59:08,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:59:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-11-28 02:59:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 02:59:08,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:08,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:08,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:59:08,508 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 02:59:08,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:08,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1229048927, now seen corresponding path program 1 times [2020-11-28 02:59:08,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:08,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954863429] [2020-11-28 02:59:08,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:08,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 02:59:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:08,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954863429] [2020-11-28 02:59:08,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:08,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:59:08,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727820011] [2020-11-28 02:59:08,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:59:08,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:08,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:59:08,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:59:08,638 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 6 states. [2020-11-28 02:59:08,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:08,750 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-11-28 02:59:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:59:08,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 02:59:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:08,755 INFO L225 Difference]: With dead ends: 22 [2020-11-28 02:59:08,755 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 02:59:08,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:59:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 02:59:08,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 02:59:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 02:59:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-28 02:59:08,759 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2020-11-28 02:59:08,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:08,760 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-28 02:59:08,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:59:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-28 02:59:08,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 02:59:08,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:08,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:08,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 02:59:08,761 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 02:59:08,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:08,762 INFO L82 PathProgramCache]: Analyzing trace with hash 554189009, now seen corresponding path program 1 times [2020-11-28 02:59:08,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:08,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876480347] [2020-11-28 02:59:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:09,086 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-28 02:59:09,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 02:59:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:09,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876480347] [2020-11-28 02:59:09,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:09,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:59:09,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752777761] [2020-11-28 02:59:09,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:59:09,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:09,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:59:09,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:59:09,125 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2020-11-28 02:59:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:09,270 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-28 02:59:09,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:59:09,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 02:59:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:09,272 INFO L225 Difference]: With dead ends: 21 [2020-11-28 02:59:09,272 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 02:59:09,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:59:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 02:59:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 02:59:09,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 02:59:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-28 02:59:09,277 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 15 [2020-11-28 02:59:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:09,277 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 02:59:09,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:59:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 02:59:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:59:09,278 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:09,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:09,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 02:59:09,279 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 02:59:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:09,282 INFO L82 PathProgramCache]: Analyzing trace with hash -9821, now seen corresponding path program 1 times [2020-11-28 02:59:09,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:09,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000153145] [2020-11-28 02:59:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:09,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 02:59:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:09,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000153145] [2020-11-28 02:59:09,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:09,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:59:09,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213052922] [2020-11-28 02:59:09,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:59:09,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:09,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:59:09,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:59:09,424 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-28 02:59:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:09,518 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-28 02:59:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:59:09,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-28 02:59:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:09,519 INFO L225 Difference]: With dead ends: 20 [2020-11-28 02:59:09,520 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 02:59:09,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:59:09,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 02:59:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 02:59:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 02:59:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-28 02:59:09,524 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2020-11-28 02:59:09,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:09,524 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-28 02:59:09,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:59:09,524 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-28 02:59:09,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 02:59:09,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:09,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:09,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 02:59:09,526 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr15ENSURES_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 02:59:09,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:09,526 INFO L82 PathProgramCache]: Analyzing trace with hash -304364, now seen corresponding path program 1 times [2020-11-28 02:59:09,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:09,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572624132] [2020-11-28 02:59:09,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 02:59:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:09,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572624132] [2020-11-28 02:59:09,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:09,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 02:59:09,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640604441] [2020-11-28 02:59:09,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 02:59:09,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:09,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 02:59:09,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:59:09,902 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-11-28 02:59:10,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:10,181 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-11-28 02:59:10,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:59:10,182 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-11-28 02:59:10,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:59:10,183 INFO L225 Difference]: With dead ends: 19 [2020-11-28 02:59:10,183 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:59:10,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-11-28 02:59:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:59:10,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:59:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:59:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:59:10,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-28 02:59:10,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:59:10,185 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:59:10,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 02:59:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:59:10,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:59:10,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 02:59:10,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:10 BoogieIcfgContainer [2020-11-28 02:59:10,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:59:10,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:59:10,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:59:10,191 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:59:10,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:07" (3/4) ... [2020-11-28 02:59:10,199 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:59:10,205 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2020-11-28 02:59:10,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-28 02:59:10,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2020-11-28 02:59:10,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2020-11-28 02:59:10,206 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2020-11-28 02:59:10,207 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2020-11-28 02:59:10,207 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-28 02:59:10,207 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2020-11-28 02:59:10,214 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 02:59:10,215 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 02:59:10,215 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 02:59:10,215 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:59:10,255 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3d1f488d-8acb-4728-8103-785712974f70/bin/uautomizer/witness.graphml [2020-11-28 02:59:10,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:59:10,257 INFO L168 Benchmark]: Toolchain (without parser) took 3806.35 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 55.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:10,258 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory was 33.9 MB in the beginning and 33.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:10,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.78 ms. Allocated memory is still 96.5 MB. Free memory was 63.3 MB in the beginning and 62.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:10,259 INFO L168 Benchmark]: Boogie Preprocessor took 51.35 ms. Allocated memory is still 96.5 MB. Free memory was 62.1 MB in the beginning and 59.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:10,260 INFO L168 Benchmark]: RCFGBuilder took 711.98 ms. Allocated memory is still 96.5 MB. Free memory was 59.3 MB in the beginning and 60.3 MB in the end (delta: -1.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:10,261 INFO L168 Benchmark]: TraceAbstraction took 2441.11 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.8 MB in the beginning and 59.0 MB in the end (delta: 767.4 kB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:10,261 INFO L168 Benchmark]: Witness Printer took 65.31 ms. Allocated memory is still 117.4 MB. Free memory was 59.0 MB in the beginning and 55.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:10,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory was 33.9 MB in the beginning and 33.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 529.78 ms. Allocated memory is still 96.5 MB. Free memory was 63.3 MB in the beginning and 62.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.35 ms. Allocated memory is still 96.5 MB. Free memory was 62.1 MB in the beginning and 59.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 711.98 ms. Allocated memory is still 96.5 MB. Free memory was 59.3 MB in the beginning and 60.3 MB in the end (delta: -1.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2441.11 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.8 MB in the beginning and 59.0 MB in the end (delta: 767.4 kB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * Witness Printer took 65.31 ms. Allocated memory is still 117.4 MB. Free memory was 59.0 MB in the beginning and 55.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 536]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 538]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 58 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 113 SDslu, 107 SDs, 0 SdLazy, 268 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 8782 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...