./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.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_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/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 8fdeb5a608a809e67439a428636d313b7ceb3d25 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/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 8fdeb5a608a809e67439a428636d313b7ceb3d25 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:46:40,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:46:40,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:46:41,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:46:41,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:46:41,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:46:41,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:46:41,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:46:41,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:46:41,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:46:41,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:46:41,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:46:41,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:46:41,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:46:41,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:46:41,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:46:41,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:46:41,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:46:41,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:46:41,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:46:41,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:46:41,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:46:41,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:46:41,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:46:41,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:46:41,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:46:41,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:46:41,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:46:41,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:46:41,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:46:41,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:46:41,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:46:41,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:46:41,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:46:41,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:46:41,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:46:41,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:46:41,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:46:41,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:46:41,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:46:41,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:46:41,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-30 00:46:41,146 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:46:41,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:46:41,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:46:41,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:46:41,149 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:46:41,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:46:41,149 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:46:41,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:46:41,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:46:41,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:46:41,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:46:41,152 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:46:41,152 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:46:41,152 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:46:41,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:46:41,153 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:46:41,153 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:46:41,153 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:46:41,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:46:41,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:46:41,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:46:41,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:46:41,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:46:41,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:46:41,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:46:41,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:46:41,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:46:41,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:46:41,156 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_fc023251-a495-49c4-97ad-d7c8169e9dc5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-11-30 00:46:41,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:46:41,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:46:41,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:46:41,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:46:41,603 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:46:41,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-30 00:46:41,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/7f38ed8dd/c1e15f1166874f12b84d8d89515dd76e/FLAG2fa4b529b [2020-11-30 00:46:42,523 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:46:42,524 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-30 00:46:42,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/7f38ed8dd/c1e15f1166874f12b84d8d89515dd76e/FLAG2fa4b529b [2020-11-30 00:46:42,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/7f38ed8dd/c1e15f1166874f12b84d8d89515dd76e [2020-11-30 00:46:42,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:46:42,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:46:42,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:42,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:46:42,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:46:42,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:42" (1/1) ... [2020-11-30 00:46:42,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a6e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:42, skipping insertion in model container [2020-11-30 00:46:42,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:42" (1/1) ... [2020-11-30 00:46:42,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:46:42,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:46:43,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:43,385 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:46:43,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:43,522 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:46:43,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43 WrapperNode [2020-11-30 00:46:43,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:43,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:46:43,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:46:43,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:46:43,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... [2020-11-30 00:46:43,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... [2020-11-30 00:46:43,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... [2020-11-30 00:46:43,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... [2020-11-30 00:46:43,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... [2020-11-30 00:46:43,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... [2020-11-30 00:46:43,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... [2020-11-30 00:46:43,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:46:43,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:46:43,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:46:43,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:46:43,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/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 [2020-11-30 00:46:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 00:46:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:46:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-30 00:46:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 00:46:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 00:46:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-30 00:46:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-30 00:46:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-30 00:46:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 00:46:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 00:46:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-30 00:46:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-30 00:46:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-30 00:46:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-30 00:46:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:46:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 00:46:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 00:46:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 00:46:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 00:46:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 00:46:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 00:46:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 00:46:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 00:46:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 00:46:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 00:46:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 00:46:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 00:46:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 00:46:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 00:46:43,692 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 00:46:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 00:46:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 00:46:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 00:46:43,693 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-30 00:46:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-30 00:46:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-30 00:46:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 00:46:43,694 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 00:46:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 00:46:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 00:46:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 00:46:43,695 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 00:46:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 00:46:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 00:46:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 00:46:43,696 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 00:46:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 00:46:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 00:46:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 00:46:43,697 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 00:46:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 00:46:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 00:46:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 00:46:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 00:46:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 00:46:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 00:46:43,699 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 00:46:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 00:46:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 00:46:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 00:46:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 00:46:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 00:46:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 00:46:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 00:46:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 00:46:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 00:46:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 00:46:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 00:46:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 00:46:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 00:46:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 00:46:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 00:46:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 00:46:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 00:46:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 00:46:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 00:46:43,704 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 00:46:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 00:46:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 00:46:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 00:46:43,705 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 00:46:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 00:46:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 00:46:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 00:46:43,706 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 00:46:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 00:46:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 00:46:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 00:46:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 00:46:43,707 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 00:46:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 00:46:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 00:46:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 00:46:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 00:46:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 00:46:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 00:46:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 00:46:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 00:46:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 00:46:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 00:46:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 00:46:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 00:46:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 00:46:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 00:46:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 00:46:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 00:46:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 00:46:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 00:46:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 00:46:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 00:46:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 00:46:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 00:46:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 00:46:43,713 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 00:46:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 00:46:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 00:46:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 00:46:43,714 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 00:46:43,715 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 00:46:43,715 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 00:46:43,715 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 00:46:43,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 00:46:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 00:46:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:46:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:46:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:46:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:46:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:46:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 00:46:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:46:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:46:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:46:44,396 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:46:44,396 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-30 00:46:44,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:44 BoogieIcfgContainer [2020-11-30 00:46:44,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:46:44,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:46:44,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:46:44,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:46:44,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:46:42" (1/3) ... [2020-11-30 00:46:44,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e7a6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:44, skipping insertion in model container [2020-11-30 00:46:44,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:43" (2/3) ... [2020-11-30 00:46:44,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e7a6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:44, skipping insertion in model container [2020-11-30 00:46:44,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:44" (3/3) ... [2020-11-30 00:46:44,418 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-11-30 00:46:44,434 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:46:44,442 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-30 00:46:44,455 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-30 00:46:44,483 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:46:44,484 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 00:46:44,484 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:46:44,484 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:46:44,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:46:44,485 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:46:44,485 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:46:44,485 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:46:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 00:46:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:46:44,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:44,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:44,532 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-30 00:46:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:44,552 INFO L82 PathProgramCache]: Analyzing trace with hash 349376891, now seen corresponding path program 1 times [2020-11-30 00:46:44,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:44,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067723586] [2020-11-30 00:46:44,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:46:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:44,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067723586] [2020-11-30 00:46:44,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:44,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:46:44,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716535846] [2020-11-30 00:46:44,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:46:44,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:44,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:46:44,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:44,982 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-11-30 00:46:45,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:45,134 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-11-30 00:46:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:46:45,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 00:46:45,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:45,160 INFO L225 Difference]: With dead ends: 25 [2020-11-30 00:46:45,161 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 00:46:45,169 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 [2020-11-30 00:46:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 00:46:45,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 00:46:45,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 00:46:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-30 00:46:45,219 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2020-11-30 00:46:45,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:45,219 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-30 00:46:45,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:46:45,220 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-30 00:46:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:46:45,220 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:45,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:45,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:46:45,222 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-30 00:46:45,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:45,223 INFO L82 PathProgramCache]: Analyzing trace with hash 349376892, now seen corresponding path program 1 times [2020-11-30 00:46:45,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:45,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013395000] [2020-11-30 00:46:45,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:45,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:46:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:45,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013395000] [2020-11-30 00:46:45,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:45,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:46:45,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148799980] [2020-11-30 00:46:45,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:46:45,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:45,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:46:45,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:45,395 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2020-11-30 00:46:45,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:45,481 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-30 00:46:45,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:46:45,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 00:46:45,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:45,484 INFO L225 Difference]: With dead ends: 17 [2020-11-30 00:46:45,484 INFO L226 Difference]: Without dead ends: 17 [2020-11-30 00:46:45,485 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 [2020-11-30 00:46:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-30 00:46:45,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-30 00:46:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 00:46:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-30 00:46:45,489 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-11-30 00:46:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:45,489 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-30 00:46:45,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:46:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-30 00:46:45,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:46:45,490 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:45,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:45,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:46:45,490 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-30 00:46:45,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:45,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1583269800, now seen corresponding path program 1 times [2020-11-30 00:46:45,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:45,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076159655] [2020-11-30 00:46:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:45,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:46:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:45,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076159655] [2020-11-30 00:46:45,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:45,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:46:45,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512712733] [2020-11-30 00:46:45,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:46:45,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:46:45,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:46:45,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:46:45,644 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-11-30 00:46:45,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:45,770 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-30 00:46:45,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:46:45,773 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-30 00:46:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:45,774 INFO L225 Difference]: With dead ends: 21 [2020-11-30 00:46:45,775 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 00:46:45,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:46:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 00:46:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-11-30 00:46:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:46:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-30 00:46:45,780 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-11-30 00:46:45,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:45,781 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-30 00:46:45,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:46:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-30 00:46:45,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:46:45,782 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:45,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:45,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:46:45,782 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-30 00:46:45,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:45,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1731033160, now seen corresponding path program 1 times [2020-11-30 00:46:45,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:46:45,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060571098] [2020-11-30 00:46:45,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:46:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:46:45,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:46:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:46:45,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:46:45,954 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:46:45,954 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:46:45,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:46:45,970 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-30 00:46:45,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:46:45 BoogieIcfgContainer [2020-11-30 00:46:45,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:46:45,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:46:45,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:46:45,986 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:46:45,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:44" (3/4) ... [2020-11-30 00:46:45,991 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:46:45,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:46:45,994 INFO L168 Benchmark]: Toolchain (without parser) took 3242.47 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 74.7 MB in the beginning and 65.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:45,995 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 102.8 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:45,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.32 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 74.4 MB in the beginning and 96.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:45,997 INFO L168 Benchmark]: Boogie Preprocessor took 66.48 ms. Allocated memory is still 132.1 MB. Free memory was 96.6 MB in the beginning and 94.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:45,998 INFO L168 Benchmark]: RCFGBuilder took 805.51 ms. Allocated memory is still 132.1 MB. Free memory was 94.2 MB in the beginning and 90.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:45,999 INFO L168 Benchmark]: TraceAbstraction took 1584.37 ms. Allocated memory is still 132.1 MB. Free memory was 90.0 MB in the beginning and 66.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:46,000 INFO L168 Benchmark]: Witness Printer took 5.85 ms. Allocated memory is still 132.1 MB. Free memory was 66.4 MB in the beginning and 65.9 MB in the end (delta: 514.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:46,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 102.8 MB. Free memory is still 59.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 769.32 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 74.4 MB in the beginning and 96.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.48 ms. Allocated memory is still 132.1 MB. Free memory was 96.6 MB in the beginning and 94.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 805.51 ms. Allocated memory is still 132.1 MB. Free memory was 94.2 MB in the beginning and 90.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1584.37 ms. Allocated memory is still 132.1 MB. Free memory was 90.0 MB in the beginning and 66.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.85 ms. Allocated memory is still 132.1 MB. Free memory was 66.4 MB in the beginning and 65.9 MB in the end (delta: 514.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={-1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={-1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 50 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 41 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:46:49,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:46:49,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:46:49,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:46:49,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:46:49,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:46:49,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:46:49,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:46:49,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:46:49,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:46:49,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:46:49,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:46:49,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:46:49,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:46:49,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:46:49,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:46:49,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:46:49,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:46:49,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:46:49,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:46:49,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:46:49,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:46:49,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:46:49,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:46:49,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:46:49,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:46:49,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:46:49,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:46:49,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:46:49,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:46:49,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:46:49,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:46:49,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:46:49,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:46:49,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:46:49,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:46:49,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:46:49,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:46:49,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:46:49,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:46:49,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:46:49,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-30 00:46:49,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:46:49,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:46:49,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:46:49,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:46:49,376 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:46:49,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:46:49,377 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:46:49,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:46:49,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:46:49,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:46:49,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:46:49,379 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:46:49,380 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:46:49,380 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:46:49,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:46:49,381 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:46:49,381 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:46:49,381 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:46:49,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:46:49,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:46:49,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:46:49,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:46:49,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:46:49,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:46:49,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:46:49,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:46:49,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:46:49,384 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:46:49,384 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:46:49,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:46:49,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:46:49,385 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_fc023251-a495-49c4-97ad-d7c8169e9dc5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-11-30 00:46:49,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:46:49,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:46:49,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:46:49,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:46:49,988 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:46:49,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-30 00:46:50,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/f701c942f/82314ae7a85040349f0af005c7053afe/FLAG3e7109f71 [2020-11-30 00:46:50,877 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:46:50,878 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-30 00:46:50,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/f701c942f/82314ae7a85040349f0af005c7053afe/FLAG3e7109f71 [2020-11-30 00:46:51,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/data/f701c942f/82314ae7a85040349f0af005c7053afe [2020-11-30 00:46:51,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:46:51,094 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:46:51,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:51,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:46:51,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:46:51,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb1299d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51, skipping insertion in model container [2020-11-30 00:46:51,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:46:51,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:46:51,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:51,619 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:46:51,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:46:51,811 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:46:51,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51 WrapperNode [2020-11-30 00:46:51,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:46:51,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:46:51,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:46:51,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:46:51,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... [2020-11-30 00:46:51,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:46:51,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:46:51,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:46:51,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:46:51,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/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 [2020-11-30 00:46:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 00:46:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:46:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 00:46:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-30 00:46:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 00:46:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 00:46:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-30 00:46:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-30 00:46:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-30 00:46:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 00:46:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 00:46:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-30 00:46:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-30 00:46:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-30 00:46:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-30 00:46:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:46:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 00:46:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 00:46:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 00:46:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 00:46:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 00:46:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 00:46:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 00:46:51,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 00:46:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 00:46:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 00:46:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 00:46:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 00:46:51,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 00:46:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 00:46:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 00:46:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 00:46:51,970 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 00:46:51,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 00:46:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-30 00:46:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-30 00:46:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-30 00:46:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 00:46:51,985 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 00:46:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 00:46:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 00:46:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 00:46:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 00:46:51,986 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 00:46:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 00:46:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 00:46:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 00:46:51,987 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 00:46:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 00:46:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 00:46:51,988 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 00:46:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 00:46:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 00:46:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 00:46:51,990 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 00:46:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 00:46:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 00:46:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 00:46:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 00:46:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 00:46:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 00:46:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 00:46:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 00:46:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 00:46:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 00:46:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 00:46:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 00:46:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 00:46:51,995 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 00:46:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 00:46:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 00:46:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 00:46:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 00:46:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 00:46:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 00:46:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 00:46:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 00:46:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 00:46:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-30 00:46:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 00:46:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-30 00:46:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 00:46:52,000 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 00:46:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-30 00:46:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 00:46:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 00:46:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 00:46:52,001 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 00:46:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 00:46:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 00:46:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 00:46:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 00:46:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 00:46:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 00:46:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 00:46:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 00:46:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 00:46:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 00:46:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 00:46:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 00:46:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 00:46:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 00:46:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 00:46:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 00:46:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 00:46:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 00:46:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 00:46:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 00:46:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 00:46:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 00:46:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 00:46:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 00:46:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 00:46:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 00:46:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 00:46:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 00:46:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 00:46:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 00:46:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 00:46:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 00:46:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 00:46:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 00:46:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 00:46:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 00:46:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:46:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:46:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:46:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:46:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-30 00:46:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:46:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 00:46:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:46:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:46:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-30 00:46:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:46:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-30 00:46:53,123 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:46:53,124 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-30 00:46:53,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:53 BoogieIcfgContainer [2020-11-30 00:46:53,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:46:53,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:46:53,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:46:53,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:46:53,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:46:51" (1/3) ... [2020-11-30 00:46:53,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1017875f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:53, skipping insertion in model container [2020-11-30 00:46:53,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:46:51" (2/3) ... [2020-11-30 00:46:53,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1017875f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:46:53, skipping insertion in model container [2020-11-30 00:46:53,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:53" (3/3) ... [2020-11-30 00:46:53,151 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-11-30 00:46:53,172 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:46:53,180 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-30 00:46:53,196 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-30 00:46:53,240 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:46:53,240 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 00:46:53,241 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:46:53,241 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:46:53,241 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:46:53,241 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:46:53,241 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:46:53,242 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:46:53,261 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-30 00:46:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:46:53,274 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:53,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:53,276 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-30 00:46:53,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:53,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077008, now seen corresponding path program 1 times [2020-11-30 00:46:53,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:46:53,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108441599] [2020-11-30 00:46:53,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:46:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:53,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:46:53,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:53,718 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-30 00:46:53,719 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-11-30 00:46:53,720 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:46:53,729 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:46:53,735 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:46:53,736 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-11-30 00:46:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:53,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:46:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:53,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108441599] [2020-11-30 00:46:53,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:53,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:46:53,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393424562] [2020-11-30 00:46:53,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:46:53,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:46:53,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:46:53,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:53,819 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-11-30 00:46:53,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:53,971 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-11-30 00:46:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:53,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 00:46:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:53,985 INFO L225 Difference]: With dead ends: 24 [2020-11-30 00:46:53,985 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 00:46:53,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:46:54,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 00:46:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 00:46:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 00:46:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 00:46:54,031 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2020-11-30 00:46:54,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:54,034 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 00:46:54,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:46:54,034 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-30 00:46:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 00:46:54,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:54,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:54,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:46:54,249 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-30 00:46:54,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:54,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077007, now seen corresponding path program 1 times [2020-11-30 00:46:54,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:46:54,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335786986] [2020-11-30 00:46:54,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:46:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:46:54,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:46:54,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:46:54,447 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_25|], 1=[|v_#valid_31|]} [2020-11-30 00:46:54,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:46:54,456 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-11-30 00:46:54,457 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:46:54,482 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:46:54,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-30 00:46:54,494 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2020-11-30 00:46:54,498 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:46:54,517 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:46:54,519 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:46:54,519 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-11-30 00:46:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:54,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:46:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:46:54,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335786986] [2020-11-30 00:46:54,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:46:54,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-30 00:46:54,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428882758] [2020-11-30 00:46:54,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:46:54,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:46:54,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:46:54,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:54,641 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2020-11-30 00:46:54,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:46:54,750 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-30 00:46:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:46:54,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 00:46:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:46:54,752 INFO L225 Difference]: With dead ends: 16 [2020-11-30 00:46:54,752 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 00:46:54,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:46:54,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 00:46:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 00:46:54,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 00:46:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-30 00:46:54,757 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-11-30 00:46:54,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:46:54,757 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-30 00:46:54,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:46:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-30 00:46:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:46:54,758 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:46:54,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:46:54,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:46:54,960 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-30 00:46:54,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:46:54,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1961294140, now seen corresponding path program 1 times [2020-11-30 00:46:54,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:46:54,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146099203] [2020-11-30 00:46:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fc023251-a495-49c4-97ad-d7c8169e9dc5/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 00:46:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:46:55,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:46:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:46:55,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:46:55,426 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 00:46:55,426 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:46:55,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:46:55,644 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-30 00:46:55,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:46:55 BoogieIcfgContainer [2020-11-30 00:46:55,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:46:55,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:46:55,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:46:55,664 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:46:55,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:46:53" (3/4) ... [2020-11-30 00:46:55,669 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:46:55,669 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:46:55,671 INFO L168 Benchmark]: Toolchain (without parser) took 4576.11 ms. Allocated memory was 60.8 MB in the beginning and 125.8 MB in the end (delta: 65.0 MB). Free memory was 38.7 MB in the beginning and 61.7 MB in the end (delta: -22.9 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:55,672 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 43.1 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:55,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.54 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 32.5 MB in the end (delta: 6.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:55,674 INFO L168 Benchmark]: Boogie Preprocessor took 73.40 ms. Allocated memory is still 60.8 MB. Free memory was 32.2 MB in the beginning and 29.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:55,701 INFO L168 Benchmark]: RCFGBuilder took 1241.39 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 29.5 MB in the beginning and 54.2 MB in the end (delta: -24.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:55,702 INFO L168 Benchmark]: TraceAbstraction took 2530.91 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 54.2 MB in the beginning and 62.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:46:55,703 INFO L168 Benchmark]: Witness Printer took 5.71 ms. Allocated memory is still 125.8 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:46:55,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 60.8 MB. Free memory was 43.2 MB in the beginning and 43.1 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 707.54 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 32.5 MB in the end (delta: 6.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.40 ms. Allocated memory is still 60.8 MB. Free memory was 32.2 MB in the beginning and 29.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1241.39 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 29.5 MB in the beginning and 54.2 MB in the end (delta: -24.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2530.91 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 54.2 MB in the beginning and 62.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.71 ms. Allocated memory is still 125.8 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 55 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 23 SDslu, 16 SDs, 0 SdLazy, 25 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 360 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...