./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt --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_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt --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 0.2.1-dev-4e77c04 [2021-10-13 00:33:49,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:33:49,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:33:49,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:33:49,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:33:49,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:33:49,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:33:49,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:33:49,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:33:49,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:33:49,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:33:49,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:33:49,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:33:49,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:33:49,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:33:49,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:33:49,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:33:49,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:33:49,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:33:49,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:33:49,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:33:49,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:33:49,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:33:49,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:33:49,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:33:49,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:33:49,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:33:49,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:33:49,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:33:49,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:33:49,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:33:49,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:33:49,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:33:49,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:33:49,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:33:49,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:33:49,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:33:49,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:33:49,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:33:49,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:33:49,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:33:49,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:33:49,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:33:49,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:33:49,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:33:49,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:33:49,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:33:49,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:33:49,836 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:33:49,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:33:49,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:33:49,837 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:33:49,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:33:49,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:33:49,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:33:49,840 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:33:49,840 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:33:49,840 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:33:49,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:33:49,840 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:33:49,841 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:33:49,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:33:49,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:33:49,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:33:49,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:33:49,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:33:49,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:33:49,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:33:49,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:33:49,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:33:49,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:33:49,843 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_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2021-10-13 00:33:50,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:33:50,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:33:50,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:33:50,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:33:50,176 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:33:50,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-13 00:33:50,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/74ae760b2/fd603502443c4b888f6d1dce03ac15af/FLAGb7b66a336 [2021-10-13 00:33:50,732 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:33:50,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-13 00:33:50,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/74ae760b2/fd603502443c4b888f6d1dce03ac15af/FLAGb7b66a336 [2021-10-13 00:33:51,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/74ae760b2/fd603502443c4b888f6d1dce03ac15af [2021-10-13 00:33:51,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:33:51,071 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:33:51,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:33:51,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:33:51,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:33:51,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4cf0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51, skipping insertion in model container [2021-10-13 00:33:51,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:33:51,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:33:51,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:33:51,434 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:33:51,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:33:51,544 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:33:51,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51 WrapperNode [2021-10-13 00:33:51,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:33:51,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:33:51,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:33:51,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:33:51,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:33:51,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:33:51,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:33:51,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:33:51,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (1/1) ... [2021-10-13 00:33:51,625 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:33:51,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:51,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:51,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:33:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:33:51,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:33:51,686 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-13 00:33:51,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:33:51,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:33:51,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:33:51,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:33:51,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:33:51,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:33:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:33:51,688 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-13 00:33:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-13 00:33:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-13 00:33:51,689 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-13 00:33:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:33:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:33:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:33:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:33:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:33:51,690 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:33:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:33:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:33:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:33:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:33:51,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:33:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:33:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:33:51,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:33:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:33:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:33:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:33:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:33:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:33:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:33:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:33:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:33:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:33:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:33:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:33:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:33:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:33:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:33:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:33:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:33:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:33:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:33:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:33:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:33:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:33:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:33:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:33:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:33:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:33:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:33:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:33:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:33:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:33:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:33:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:33:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:33:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:33:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:33:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:33:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:33:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:33:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:33:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:33:51,701 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:33:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:33:51,702 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:33:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:33:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:33:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:33:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:33:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:33:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:33:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:33:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:33:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:33:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:33:51,705 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:33:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:33:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:33:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:33:51,706 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:33:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:33:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:33:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:33:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:33:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:33:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:33:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:33:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:33:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:33:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:33:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:33:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:33:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:33:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:33:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:33:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:33:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:33:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:33:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:33:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:33:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:33:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:33:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:33:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:33:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:33:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:33:51,711 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:33:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:33:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:33:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:33:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:33:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:33:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:33:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:33:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:33:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:33:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:33:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:33:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:33:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:33:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:33:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:33:51,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:33:51,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:33:51,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:33:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:33:51,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:33:52,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:33:52,163 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-13 00:33:52,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:52 BoogieIcfgContainer [2021-10-13 00:33:52,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:33:52,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:33:52,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:33:52,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:33:52,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:33:51" (1/3) ... [2021-10-13 00:33:52,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ded0328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:33:52, skipping insertion in model container [2021-10-13 00:33:52,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:51" (2/3) ... [2021-10-13 00:33:52,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ded0328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:33:52, skipping insertion in model container [2021-10-13 00:33:52,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:52" (3/3) ... [2021-10-13 00:33:52,178 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-13 00:33:52,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:33:52,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-13 00:33:52,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:33:52,246 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:33:52,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-13 00:33:52,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:33:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:33:52,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:52,280 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:52,280 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-13 00:33:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1484797383, now seen corresponding path program 1 times [2021-10-13 00:33:52,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:33:52,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570399814] [2021-10-13 00:33:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:52,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:33:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:33:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:52,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:33:52,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570399814] [2021-10-13 00:33:52,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570399814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:52,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:52,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:33:52,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283081687] [2021-10-13 00:33:52,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:33:52,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:33:52,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:33:52,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:33:52,653 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:52,727 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-13 00:33:52,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:33:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-13 00:33:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:52,735 INFO L225 Difference]: With dead ends: 25 [2021-10-13 00:33:52,736 INFO L226 Difference]: Without dead ends: 22 [2021-10-13 00:33:52,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:33:52,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-13 00:33:52,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-13 00:33:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:52,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-13 00:33:52,767 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2021-10-13 00:33:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:52,767 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-13 00:33:52,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-13 00:33:52,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:33:52,768 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:52,769 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:52,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:33:52,769 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-13 00:33:52,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:52,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1484797382, now seen corresponding path program 1 times [2021-10-13 00:33:52,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:33:52,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858190324] [2021-10-13 00:33:52,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:52,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:33:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:33:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:52,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:52,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:33:52,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858190324] [2021-10-13 00:33:52,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858190324] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:52,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:52,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:33:52,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726653082] [2021-10-13 00:33:52,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:33:52,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:33:52,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:33:52,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:33:52,862 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:52,914 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-13 00:33:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:33:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-13 00:33:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:52,916 INFO L225 Difference]: With dead ends: 17 [2021-10-13 00:33:52,916 INFO L226 Difference]: Without dead ends: 17 [2021-10-13 00:33:52,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:33:52,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-13 00:33:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-13 00:33:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-13 00:33:52,921 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-13 00:33:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:52,922 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-13 00:33:52,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-13 00:33:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:33:52,923 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:52,923 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:52,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:33:52,924 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-13 00:33:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:52,925 INFO L82 PathProgramCache]: Analyzing trace with hash 910104040, now seen corresponding path program 1 times [2021-10-13 00:33:52,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:33:52,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145983219] [2021-10-13 00:33:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:52,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:33:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:33:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:53,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:33:53,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145983219] [2021-10-13 00:33:53,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145983219] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:53,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:53,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:33:53,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982215667] [2021-10-13 00:33:53,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:33:53,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:33:53,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:33:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:33:53,087 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:53,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:53,153 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-13 00:33:53,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:33:53,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-10-13 00:33:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:53,160 INFO L225 Difference]: With dead ends: 21 [2021-10-13 00:33:53,161 INFO L226 Difference]: Without dead ends: 21 [2021-10-13 00:33:53,163 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:33:53,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-13 00:33:53,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-10-13 00:33:53,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:53,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-13 00:33:53,168 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2021-10-13 00:33:53,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:53,168 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-13 00:33:53,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:53,169 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-13 00:33:53,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:33:53,170 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:53,170 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:53,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:33:53,171 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-13 00:33:53,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:53,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1057867400, now seen corresponding path program 1 times [2021-10-13 00:33:53,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:33:53,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402774575] [2021-10-13 00:33:53,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:53,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:33:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:53,203 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:33:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:33:53,264 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:33:53,264 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:33:53,265 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr10ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:33:53,267 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-13 00:33:53,267 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-13 00:33:53,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-13 00:33:53,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-13 00:33:53,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-13 00:33:53,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-13 00:33:53,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-13 00:33:53,269 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-13 00:33:53,269 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-13 00:33:53,269 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-13 00:33:53,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:33:53,275 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:33:53,284 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:33:53,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:33:53 BoogieIcfgContainer [2021-10-13 00:33:53,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:33:53,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:33:53,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:33:53,298 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:33:53,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:52" (3/4) ... [2021-10-13 00:33:53,301 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:33:53,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:33:53,304 INFO L168 Benchmark]: Toolchain (without parser) took 2231.27 ms. Allocated memory is still 107.0 MB. Free memory was 69.1 MB in the beginning and 41.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:53,304 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:33:53,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.06 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 76.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:53,306 INFO L168 Benchmark]: Boogie Preprocessor took 59.46 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 74.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:53,307 INFO L168 Benchmark]: RCFGBuilder took 555.66 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 55.2 MB in the end (delta: 19.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:53,312 INFO L168 Benchmark]: TraceAbstraction took 1129.69 ms. Allocated memory is still 107.0 MB. Free memory was 54.6 MB in the beginning and 41.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:33:53,312 INFO L168 Benchmark]: Witness Printer took 4.07 ms. Allocated memory is still 107.0 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:33:53,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 473.06 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 76.3 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.46 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 74.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 555.66 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 55.2 MB in the end (delta: 19.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1129.69 ms. Allocated memory is still 107.0 MB. Free memory was 54.6 MB in the beginning and 41.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.07 ms. Allocated memory is still 107.0 MB. Free memory is still 41.6 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 48 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1036.5ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 17.9ms, AutomataDifference: 232.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 41 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 116.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.1ms SsaConstructionTime, 140.2ms SatisfiabilityAnalysisTime, 313.2ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 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 [2021-10-13 00:33:53,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:33:55,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:33:55,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:33:55,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:33:55,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:33:55,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:33:55,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:33:55,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:33:55,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:33:55,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:33:55,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:33:55,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:33:55,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:33:55,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:33:55,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:33:55,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:33:55,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:33:55,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:33:55,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:33:55,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:33:55,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:33:55,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:33:55,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:33:55,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:33:55,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:33:55,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:33:55,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:33:55,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:33:55,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:33:55,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:33:55,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:33:55,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:33:55,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:33:55,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:33:55,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:33:55,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:33:55,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:33:55,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:33:55,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:33:55,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:33:55,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:33:55,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:33:55,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:33:55,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:33:55,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:33:55,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:33:55,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:33:55,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:33:55,796 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:33:55,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:33:55,797 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:33:55,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:33:55,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:33:55,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:33:55,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:33:55,799 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:33:55,799 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:33:55,800 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:33:55,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:33:55,800 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:33:55,800 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:33:55,800 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:33:55,801 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:33:55,801 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:33:55,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:33:55,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:33:55,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:33:55,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:33:55,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:33:55,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:33:55,803 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:33:55,803 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:33:55,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:33:55,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:33:55,804 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_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2021-10-13 00:33:56,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:33:56,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:33:56,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:33:56,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:33:56,240 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:33:56,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-13 00:33:56,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/9297f793e/19f715a0cb0648c8ae69f78c69168d1d/FLAGd43eb59a9 [2021-10-13 00:33:56,877 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:33:56,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2021-10-13 00:33:56,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/9297f793e/19f715a0cb0648c8ae69f78c69168d1d/FLAGd43eb59a9 [2021-10-13 00:33:57,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/data/9297f793e/19f715a0cb0648c8ae69f78c69168d1d [2021-10-13 00:33:57,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:33:57,160 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:33:57,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:33:57,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:33:57,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:33:57,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e63f887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57, skipping insertion in model container [2021-10-13 00:33:57,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:33:57,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:33:57,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:33:57,564 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:33:57,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:33:57,677 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:33:57,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57 WrapperNode [2021-10-13 00:33:57,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:33:57,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:33:57,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:33:57,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:33:57,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:33:57,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:33:57,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:33:57,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:33:57,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (1/1) ... [2021-10-13 00:33:57,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:33:57,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:33:57,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:33:57,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:33:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:33:57,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:33:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:33:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-13 00:33:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:33:57,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:33:57,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:33:57,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:33:57,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:33:57,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:33:57,859 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:33:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-13 00:33:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-13 00:33:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-13 00:33:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-13 00:33:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:33:57,860 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:33:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:33:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:33:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:33:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:33:57,861 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:33:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:33:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:33:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:33:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:33:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:33:57,862 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:33:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:33:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:33:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:33:57,863 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:33:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:33:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:33:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:33:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:33:57,864 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:33:57,865 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:33:57,865 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:33:57,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:33:57,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:33:57,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:33:57,865 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:33:57,866 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:33:57,866 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:33:57,866 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:33:57,867 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:33:57,867 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:33:57,868 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:33:57,868 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:33:57,868 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:33:57,868 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:33:57,869 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:33:57,869 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:33:57,869 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:33:57,869 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:33:57,869 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:33:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:33:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:33:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:33:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:33:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:33:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:33:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:33:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:33:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:33:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:33:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:33:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:33:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:33:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:33:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:33:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:33:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:33:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:33:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:33:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:33:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:33:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:33:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:33:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:33:57,876 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:33:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:33:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:33:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:33:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:33:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:33:57,877 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:33:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:33:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:33:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:33:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:33:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:33:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:33:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:33:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:33:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:33:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:33:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:33:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:33:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:33:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:33:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:33:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:33:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:33:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:33:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:33:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:33:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:33:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:33:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:33:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:33:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:33:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:33:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:33:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:33:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:33:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:33:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:33:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:33:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:33:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:33:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-13 00:33:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:33:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:33:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:33:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 00:33:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:33:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-13 00:33:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:33:57,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:33:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:33:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:33:57,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:33:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:33:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-13 00:33:58,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:33:58,428 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-13 00:33:58,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:58 BoogieIcfgContainer [2021-10-13 00:33:58,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:33:58,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:33:58,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:33:58,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:33:58,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:33:57" (1/3) ... [2021-10-13 00:33:58,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27360947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:33:58, skipping insertion in model container [2021-10-13 00:33:58,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:33:57" (2/3) ... [2021-10-13 00:33:58,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27360947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:33:58, skipping insertion in model container [2021-10-13 00:33:58,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:58" (3/3) ... [2021-10-13 00:33:58,442 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2021-10-13 00:33:58,447 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:33:58,448 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-10-13 00:33:58,496 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:33:58,502 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:33:58,502 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-13 00:33:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-13 00:33:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:33:58,522 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:58,523 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:58,523 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-13 00:33:58,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:58,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1511250447, now seen corresponding path program 1 times [2021-10-13 00:33:58,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:58,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566105816] [2021-10-13 00:33:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:58,542 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:58,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:58,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:58,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:33:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:58,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:33:58,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:58,854 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-10-13 00:33:58,857 INFO L388 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 13 [2021-10-13 00:33:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:58,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:58,970 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:58,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566105816] [2021-10-13 00:33:58,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566105816] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:58,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:58,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:33:58,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106321511] [2021-10-13 00:33:58,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:33:58,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:58,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:33:59,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:33:59,003 INFO L87 Difference]: Start difference. First operand has 30 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 25 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:59,099 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-10-13 00:33:59,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:33:59,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-13 00:33:59,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:59,108 INFO L225 Difference]: With dead ends: 25 [2021-10-13 00:33:59,109 INFO L226 Difference]: Without dead ends: 22 [2021-10-13 00:33:59,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:33:59,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-13 00:33:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-13 00:33:59,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-13 00:33:59,138 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2021-10-13 00:33:59,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:59,138 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-13 00:33:59,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-13 00:33:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:33:59,139 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:59,139 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:59,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:59,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:59,362 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-13 00:33:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1511250448, now seen corresponding path program 1 times [2021-10-13 00:33:59,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:59,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550882499] [2021-10-13 00:33:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:59,364 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:59,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:59,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:59,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:33:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:33:59,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:33:59,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:33:59,547 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-13 00:33:59,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2021-10-13 00:33:59,555 INFO L388 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 20 treesize of output 18 [2021-10-13 00:33:59,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:59,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:33:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:33:59,670 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:33:59,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550882499] [2021-10-13 00:33:59,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550882499] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:33:59,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:33:59,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 00:33:59,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925950573] [2021-10-13 00:33:59,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:33:59,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:33:59,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:33:59,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:33:59,673 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:33:59,738 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-13 00:33:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:33:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-13 00:33:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:33:59,740 INFO L225 Difference]: With dead ends: 17 [2021-10-13 00:33:59,740 INFO L226 Difference]: Without dead ends: 17 [2021-10-13 00:33:59,741 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:33:59,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-13 00:33:59,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-13 00:33:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:59,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-13 00:33:59,744 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-13 00:33:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:33:59,744 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-13 00:33:59,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-13 00:33:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-13 00:33:59,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:33:59,745 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:33:59,745 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:33:59,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:33:59,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:33:59,946 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr10ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 6 more)] === [2021-10-13 00:33:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:33:59,947 INFO L82 PathProgramCache]: Analyzing trace with hash -127243832, now seen corresponding path program 1 times [2021-10-13 00:33:59,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:33:59,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799481421] [2021-10-13 00:33:59,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:33:59,948 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:33:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:33:59,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:33:59,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:34:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:34:00,104 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:34:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:34:00,177 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-13 00:34:00,178 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:34:00,179 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr10ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:34:00,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-13 00:34:00,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-13 00:34:00,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-13 00:34:00,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-13 00:34:00,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-13 00:34:00,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-13 00:34:00,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-13 00:34:00,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-13 00:34:00,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-13 00:34:00,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-13 00:34:00,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:00,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:34:00,392 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:34:00,401 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:34:00,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:34:00 BoogieIcfgContainer [2021-10-13 00:34:00,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:34:00,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:34:00,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:34:00,414 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:34:00,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:33:58" (3/4) ... [2021-10-13 00:34:00,418 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:34:00,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:34:00,422 INFO L168 Benchmark]: Toolchain (without parser) took 3258.46 ms. Allocated memory was 54.5 MB in the beginning and 88.1 MB in the end (delta: 33.6 MB). Free memory was 31.8 MB in the beginning and 65.9 MB in the end (delta: -34.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:34:00,422 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:34:00,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.69 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.6 MB in the beginning and 47.6 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:00,425 INFO L168 Benchmark]: Boogie Preprocessor took 82.63 ms. Allocated memory is still 71.3 MB. Free memory was 47.6 MB in the beginning and 44.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:00,425 INFO L168 Benchmark]: RCFGBuilder took 664.62 ms. Allocated memory is still 71.3 MB. Free memory was 44.8 MB in the beginning and 41.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:00,432 INFO L168 Benchmark]: TraceAbstraction took 1978.56 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 40.6 MB in the beginning and 66.5 MB in the end (delta: -25.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:34:00,433 INFO L168 Benchmark]: Witness Printer took 3.76 ms. Allocated memory is still 88.1 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:34:00,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 512.69 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.6 MB in the beginning and 47.6 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.63 ms. Allocated memory is still 71.3 MB. Free memory was 47.6 MB in the beginning and 44.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 664.62 ms. Allocated memory is still 71.3 MB. Free memory was 44.8 MB in the beginning and 41.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1978.56 ms. Allocated memory was 71.3 MB in the beginning and 88.1 MB in the end (delta: 16.8 MB). Free memory was 40.6 MB in the beginning and 66.5 MB in the end (delta: -25.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.76 ms. Allocated memory is still 88.1 MB. Free memory is still 65.9 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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={15:0}, malloc(37U)={1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={15:0}] [L540] EXPR data.str.p2 VAL [data={15:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 54 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1897.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 11.9ms, AutomataDifference: 196.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 35 SDslu, 11 SDs, 0 SdLazy, 23 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 40.3ms SsaConstructionTime, 116.3ms SatisfiabilityAnalysisTime, 421.8ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 62 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 [2021-10-13 00:34:00,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea46b1e-cfc1-470e-ae87-c61adcae9d63/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...