./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:25:12,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:25:12,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:25:12,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:25:12,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:25:12,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:25:12,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:25:12,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:25:12,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:25:12,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:25:12,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:25:12,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:25:12,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:25:12,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:25:12,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:25:12,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:25:12,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:25:12,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:25:12,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:25:12,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:25:12,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:25:12,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:25:12,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:25:12,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:25:12,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:25:12,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:25:12,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:25:12,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:25:12,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:25:12,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:25:12,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:25:12,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:25:12,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:25:12,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:25:12,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:25:12,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:25:12,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:25:12,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:25:12,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:25:12,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:25:12,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:25:12,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-28 23:25:12,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:25:12,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:25:12,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:25:12,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:25:12,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:25:12,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:25:12,893 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:25:12,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:25:12,894 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:25:12,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:25:12,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:25:12,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:25:12,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:25:12,895 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:25:12,896 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:25:12,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:25:12,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:25:12,896 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:25:12,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:25:12,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:25:12,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:25:12,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:25:12,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:25:12,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:25:12,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:25:12,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:25:12,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:25:12,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:25:12,898 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_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2021-10-28 23:25:13,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:25:13,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:25:13,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:25:13,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:25:13,312 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:25:13,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-10-28 23:25:13,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/data/5abb516fb/fb29f20b2c034fbaad76ced8a8e5311f/FLAG539d0ce1d [2021-10-28 23:25:14,007 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:25:14,008 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-10-28 23:25:14,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/data/5abb516fb/fb29f20b2c034fbaad76ced8a8e5311f/FLAG539d0ce1d [2021-10-28 23:25:14,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/data/5abb516fb/fb29f20b2c034fbaad76ced8a8e5311f [2021-10-28 23:25:14,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:25:14,397 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:25:14,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:14,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:25:14,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:25:14,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:14" (1/1) ... [2021-10-28 23:25:14,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b742595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:14, skipping insertion in model container [2021-10-28 23:25:14,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:14" (1/1) ... [2021-10-28 23:25:14,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:25:14,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:25:14,952 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-10-28 23:25:14,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:14,979 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:25:15,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-10-28 23:25:15,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:15,113 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:25:15,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15 WrapperNode [2021-10-28 23:25:15,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:15,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:25:15,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:25:15,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:25:15,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:25:15,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:25:15,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:25:15,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:25:15,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (1/1) ... [2021-10-28 23:25:15,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:25:15,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:15,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:15,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:25:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:25:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:25:15,375 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 23:25:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:25:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:25:15,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:25:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:25:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:25:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-10-28 23:25:15,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:25:15,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:25:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 23:25:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 23:25:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 23:25:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 23:25:15,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:25:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:25:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:25:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:25:15,381 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:25:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:25:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:25:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:25:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:25:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:25:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:25:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:25:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:25:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:25:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:25:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:25:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:25:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:25:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:25:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:25:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:25:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:25:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:25:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:25:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:25:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:25:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:25:15,386 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:25:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:25:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:25:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:25:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:25:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:25:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:25:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:25:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:25:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:25:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:25:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:25:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:25:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:25:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:25:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:25:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:25:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:25:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:25:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:25:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:25:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:25:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:25:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:25:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:25:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:25:15,403 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:25:15,404 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:25:15,404 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:25:15,404 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:25:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:25:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:25:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:25:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:25:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:25:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:25:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:25:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:25:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:25:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:25:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:25:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:25:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:25:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:25:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:25:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:25:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:25:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:25:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:25:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:25:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:25:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:25:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:25:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:25:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:25:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:25:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:25:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:25:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:25:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:25:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:25:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:25:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:25:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:25:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:25:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:25:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-10-28 23:25:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:25:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:25:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:25:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:25:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:25:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:25:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:25:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:25:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:25:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:25:15,854 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-10-28 23:25:16,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:25:16,117 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-28 23:25:16,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:16 BoogieIcfgContainer [2021-10-28 23:25:16,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:25:16,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:25:16,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:25:16,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:25:16,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:25:14" (1/3) ... [2021-10-28 23:25:16,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59756258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:25:16, skipping insertion in model container [2021-10-28 23:25:16,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:15" (2/3) ... [2021-10-28 23:25:16,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59756258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:25:16, skipping insertion in model container [2021-10-28 23:25:16,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:16" (3/3) ... [2021-10-28 23:25:16,132 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2021-10-28 23:25:16,139 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:25:16,139 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-10-28 23:25:16,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:25:16,205 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, mAutomataTypeConcurrency=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 [2021-10-28 23:25:16,206 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-10-28 23:25:16,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 35 states have (on average 1.8857142857142857) internal successors, (66), 57 states have internal predecessors, (66), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:25:16,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:25:16,237 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:16,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:16,239 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr6REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-10-28 23:25:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:16,247 INFO L85 PathProgramCache]: Analyzing trace with hash 269519918, now seen corresponding path program 1 times [2021-10-28 23:25:16,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:16,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273814706] [2021-10-28 23:25:16,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:16,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:25:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:16,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:16,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273814706] [2021-10-28 23:25:16,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273814706] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:16,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:16,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:25:16,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847745334] [2021-10-28 23:25:16,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:25:16,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:16,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:25:16,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:25:16,539 INFO L87 Difference]: Start difference. First operand has 63 states, 35 states have (on average 1.8857142857142857) internal successors, (66), 57 states have internal predecessors, (66), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-28 23:25:16,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:16,745 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-10-28 23:25:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:25:16,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 10 [2021-10-28 23:25:16,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:16,756 INFO L225 Difference]: With dead ends: 63 [2021-10-28 23:25:16,756 INFO L226 Difference]: Without dead ends: 56 [2021-10-28 23:25:16,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:25:16,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-28 23:25:16,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-10-28 23:25:16,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.75) internal successors, (56), 52 states have internal predecessors, (56), 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) [2021-10-28 23:25:16,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2021-10-28 23:25:16,810 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 10 [2021-10-28 23:25:16,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:16,811 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2021-10-28 23:25:16,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-28 23:25:16,811 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2021-10-28 23:25:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:25:16,813 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:16,814 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:16,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:25:16,815 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr6REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-10-28 23:25:16,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:16,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1309651495, now seen corresponding path program 1 times [2021-10-28 23:25:16,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:16,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487770563] [2021-10-28 23:25:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:16,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:25:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:17,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:17,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487770563] [2021-10-28 23:25:17,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487770563] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:17,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:17,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:25:17,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259985197] [2021-10-28 23:25:17,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:25:17,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:25:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:25:17,050 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-28 23:25:17,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:17,283 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2021-10-28 23:25:17,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:25:17,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 12 [2021-10-28 23:25:17,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:17,289 INFO L225 Difference]: With dead ends: 74 [2021-10-28 23:25:17,289 INFO L226 Difference]: Without dead ends: 74 [2021-10-28 23:25:17,290 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:25:17,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-28 23:25:17,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 60. [2021-10-28 23:25:17,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 56 states have internal predecessors, (68), 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) [2021-10-28 23:25:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2021-10-28 23:25:17,317 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 12 [2021-10-28 23:25:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:17,318 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2021-10-28 23:25:17,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-28 23:25:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2021-10-28 23:25:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:25:17,319 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:17,320 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:17,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:25:17,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr7REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-10-28 23:25:17,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1309651496, now seen corresponding path program 1 times [2021-10-28 23:25:17,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:17,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900419963] [2021-10-28 23:25:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:17,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-28 23:25:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:17,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:17,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900419963] [2021-10-28 23:25:17,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900419963] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:17,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:17,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:25:17,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892043044] [2021-10-28 23:25:17,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:25:17,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:17,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:25:17,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:25:17,549 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-28 23:25:17,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:17,799 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2021-10-28 23:25:17,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:25:17,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 12 [2021-10-28 23:25:17,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:25:17,803 INFO L225 Difference]: With dead ends: 81 [2021-10-28 23:25:17,803 INFO L226 Difference]: Without dead ends: 81 [2021-10-28 23:25:17,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:25:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-10-28 23:25:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 69. [2021-10-28 23:25:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.48) internal successors, (74), 65 states have internal predecessors, (74), 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) [2021-10-28 23:25:17,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2021-10-28 23:25:17,819 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 12 [2021-10-28 23:25:17,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:25:17,820 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2021-10-28 23:25:17,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-28 23:25:17,821 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2021-10-28 23:25:17,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:25:17,822 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:25:17,822 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:25:17,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:25:17,823 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr12ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 16 more)] === [2021-10-28 23:25:17,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1341518452, now seen corresponding path program 1 times [2021-10-28 23:25:17,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:17,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400408089] [2021-10-28 23:25:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:17,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,881 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:17,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:17,984 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:25:17,985 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-28 23:25:17,987 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-28 23:25:17,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-28 23:25:17,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-28 23:25:17,994 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-28 23:25:17,994 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-28 23:25:17,995 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-28 23:25:17,995 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-28 23:25:17,995 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-28 23:25:17,995 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-28 23:25:17,996 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-28 23:25:17,996 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10REQUIRES_VIOLATION [2021-10-28 23:25:17,996 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-10-28 23:25:17,997 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-10-28 23:25:17,997 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-10-28 23:25:17,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-10-28 23:25:17,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16REQUIRES_VIOLATION [2021-10-28 23:25:17,998 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr17ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:25:17,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr18ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:25:17,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr19ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:25:17,999 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr20ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:25:17,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:25:18,003 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 23:25:18,008 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:25:18,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:25:18 BoogieIcfgContainer [2021-10-28 23:25:18,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:25:18,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:25:18,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:25:18,036 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:25:18,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:16" (3/4) ... [2021-10-28 23:25:18,045 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:25:18,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:25:18,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:25:18,101 INFO L168 Benchmark]: Toolchain (without parser) took 3702.99 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 50.7 MB in the beginning and 57.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:18,101 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:18,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.60 ms. Allocated memory is still 88.1 MB. Free memory was 50.4 MB in the beginning and 57.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:18,102 INFO L168 Benchmark]: Boogie Preprocessor took 144.67 ms. Allocated memory is still 88.1 MB. Free memory was 57.8 MB in the beginning and 55.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:18,103 INFO L168 Benchmark]: RCFGBuilder took 858.63 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 55.0 MB in the beginning and 82.3 MB in the end (delta: -27.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:18,103 INFO L168 Benchmark]: TraceAbstraction took 1912.44 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 59.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:18,104 INFO L168 Benchmark]: Witness Printer took 63.20 ms. Allocated memory is still 109.1 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:18,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 715.60 ms. Allocated memory is still 88.1 MB. Free memory was 50.4 MB in the beginning and 57.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 144.67 ms. Allocated memory is still 88.1 MB. Free memory was 57.8 MB in the beginning and 55.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 858.63 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 55.0 MB in the beginning and 82.3 MB in the end (delta: -27.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1912.44 ms. Allocated memory is still 109.1 MB. Free memory was 81.7 MB in the beginning and 59.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 63.20 ms. Allocated memory is still 109.1 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 551]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) VAL [a={-1:0}] [L534] List t; [L535] List p = a; [L536] int i = 0; VAL [a={-1:0}, i=0, p={-1:0}] [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 30 && __VERIFIER_nondet_int()=0, p={-1:0}] [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i VAL [a={-1:0}, i=0, p={-1:0}] [L546] p->n = 0 VAL [a={-1:0}, i=0, p={-1:0}] [L547] p = a [L548] i = 0 VAL [a={-1:0}, i=0, p={-1:0}] [L549] COND TRUE p!=0 VAL [a={-1:0}, i=0, p={-1:0}] [L550] EXPR p->h VAL [a={-1:0}, i=0, p={-1:0}, p->h=0] [L550] COND TRUE p->h != 1 [L551] reach_error() VAL [a={-1:0}, i=0, p={-1:0}] - 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: 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. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 545]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 546]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 558]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 558]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 82 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 195 SDslu, 49 SDs, 0 SdLazy, 287 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 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 proved your program to be incorrect! [2021-10-28 23:25:18,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6c6bde-2ac4-4fda-b5df-bd9e90587cc7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...