./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-2.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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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 c3baf3e1382b3477cfa26255004191fb506be280 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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 c3baf3e1382b3477cfa26255004191fb506be280 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:20:58,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:20:58,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:20:58,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:20:58,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:20:58,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:20:58,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:20:58,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:20:58,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:20:58,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:20:58,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:20:58,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:20:58,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:20:58,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:20:58,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:20:58,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:20:58,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:20:58,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:20:58,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:20:58,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:20:58,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:20:58,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:20:58,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:20:58,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:20:58,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:20:58,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:20:58,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:20:58,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:20:58,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:20:58,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:20:58,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:20:58,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:20:58,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:20:58,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:20:58,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:20:58,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:20:58,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:20:58,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:20:58,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:20:58,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:20:58,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:20:58,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-13 00:20:58,277 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:20:58,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:20:58,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:20:58,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:20:58,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:20:58,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:20:58,280 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:20:58,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:20:58,280 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:20:58,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:20:58,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:20:58,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:20:58,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:20:58,282 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:20:58,283 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:20:58,283 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:20:58,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:20:58,283 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:20:58,283 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:20:58,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:20:58,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:20:58,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:20:58,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:20:58,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:20:58,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:20:58,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:20:58,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:20:58,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:20:58,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:20:58,287 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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2021-10-13 00:20:58,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:20:58,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:20:58,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:20:58,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:20:58,551 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:20:58,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-13 00:20:58,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/ccddd2917/cc31050429804ca187856a825f04d857/FLAG8849f0179 [2021-10-13 00:20:59,103 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:20:59,104 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-13 00:20:59,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/ccddd2917/cc31050429804ca187856a825f04d857/FLAG8849f0179 [2021-10-13 00:20:59,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/ccddd2917/cc31050429804ca187856a825f04d857 [2021-10-13 00:20:59,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:20:59,465 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:20:59,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:20:59,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:20:59,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:20:59,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2238293f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59, skipping insertion in model container [2021-10-13 00:20:59,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:20:59,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:20:59,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:20:59,827 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:20:59,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:20:59,896 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:20:59,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59 WrapperNode [2021-10-13 00:20:59,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:20:59,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:20:59,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:20:59,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:20:59,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:20:59,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:20:59,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:20:59,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:20:59,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (1/1) ... [2021-10-13 00:20:59,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:20:59,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:20:59,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:00,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:21:00,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:21:00,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:21:00,019 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-13 00:21:00,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:21:00,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:21:00,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:21:00,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:21:00,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:21:00,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:21:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:21:00,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-13 00:21:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-13 00:21:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-13 00:21:00,022 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-13 00:21:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:21:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:21:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:21:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:21:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:21:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:21:00,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:21:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:21:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:21:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:21:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:21:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:21:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:21:00,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:21:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:21:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:21:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:21:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:21:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:21:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:21:00,025 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:21:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:21:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:21:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:21:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:21:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:21:00,026 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:21:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:21:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:21:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:21:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:21:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:21:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:21:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:21:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:21:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:21:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:21:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:21:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:21:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:21:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:21:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:21:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:21:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:21:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:21:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:21:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:21:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:21:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:21:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:21:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:21:00,031 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:21:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:21:00,032 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:21:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:21:00,033 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:21:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:21:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:21:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:21:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:21:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:21:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:21:00,034 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:21:00,035 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:21:00,035 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:21:00,035 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:21:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:21:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:21:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:21:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:21:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:21:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:21:00,036 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:21:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:21:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:21:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:21:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:21:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:21:00,037 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:21:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:21:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:21:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:21:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:21:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:21:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:21:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:21:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:21:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:21:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:21:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:21:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:21:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:21:00,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:21:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:21:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:21:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:21:00,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:21:00,483 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-13 00:21:00,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:21:00 BoogieIcfgContainer [2021-10-13 00:21:00,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:21:00,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:21:00,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:21:00,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:21:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:20:59" (1/3) ... [2021-10-13 00:21:00,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348273a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:21:00, skipping insertion in model container [2021-10-13 00:21:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:20:59" (2/3) ... [2021-10-13 00:21:00,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348273a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:21:00, skipping insertion in model container [2021-10-13 00:21:00,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:21:00" (3/3) ... [2021-10-13 00:21:00,493 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-13 00:21:00,498 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:21:00,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-13 00:21:00,543 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:21:00,549 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 00:21:00,549 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-13 00:21:00,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 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 00:21:00,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:21:00,571 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:21:00,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:21:00,572 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-13 00:21:00,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:21:00,578 INFO L82 PathProgramCache]: Analyzing trace with hash -280547993, now seen corresponding path program 1 times [2021-10-13 00:21:00,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:21:00,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010318210] [2021-10-13 00:21:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:21:00,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:21:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:00,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:21:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:00,825 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 00:21:00,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:21:00,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010318210] [2021-10-13 00:21:00,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010318210] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:21:00,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:21:00,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:21:00,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446458476] [2021-10-13 00:21:00,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:21:00,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:21:00,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:21:00,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:21:00,867 INFO L87 Difference]: Start difference. First operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 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 00:21:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:21:00,933 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-13 00:21:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:21:00,935 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 00:21:00,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:21:00,942 INFO L225 Difference]: With dead ends: 19 [2021-10-13 00:21:00,943 INFO L226 Difference]: Without dead ends: 16 [2021-10-13 00:21:00,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:21:00,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-13 00:21:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-13 00:21:00,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 12 states have internal predecessors, (12), 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 00:21:00,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-13 00:21:00,978 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-10-13 00:21:00,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:21:00,979 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-13 00:21:00,979 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 00:21:00,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-13 00:21:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:21:00,980 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:21:00,980 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:21:00,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:21:00,981 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-13 00:21:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:21:00,982 INFO L82 PathProgramCache]: Analyzing trace with hash -280547992, now seen corresponding path program 1 times [2021-10-13 00:21:00,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:21:00,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213579003] [2021-10-13 00:21:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:21:00,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:21:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-13 00:21:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:01,157 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 00:21:01,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:21:01,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213579003] [2021-10-13 00:21:01,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213579003] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:21:01,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:21:01,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:21:01,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241891671] [2021-10-13 00:21:01,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:21:01,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:21:01,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:21:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:21:01,161 INFO L87 Difference]: Start difference. First operand 16 states and 15 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 00:21:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:21:01,192 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-13 00:21:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:21:01,196 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 00:21:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:21:01,196 INFO L225 Difference]: With dead ends: 13 [2021-10-13 00:21:01,197 INFO L226 Difference]: Without dead ends: 13 [2021-10-13 00:21:01,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:21:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-13 00:21:01,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-13 00:21:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 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 00:21:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-13 00:21:01,200 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 7 [2021-10-13 00:21:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:21:01,200 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-13 00:21:01,201 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 00:21:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-13 00:21:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:21:01,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:21:01,202 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:21:01,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:21:01,202 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-13 00:21:01,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:21:01,203 INFO L82 PathProgramCache]: Analyzing trace with hash -28282382, now seen corresponding path program 1 times [2021-10-13 00:21:01,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:21:01,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734366117] [2021-10-13 00:21:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:21:01,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:21:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:21:01,252 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:21:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:21:01,336 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:21:01,336 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:21:01,337 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:21:01,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-13 00:21:01,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-13 00:21:01,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-13 00:21:01,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-13 00:21:01,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-13 00:21:01,340 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-13 00:21:01,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:21:01,346 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:21:01,354 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:21:01,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:21:01 BoogieIcfgContainer [2021-10-13 00:21:01,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:21:01,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:21:01,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:21:01,363 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:21:01,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:21:00" (3/4) ... [2021-10-13 00:21:01,367 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:21:01,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:21:01,368 INFO L168 Benchmark]: Toolchain (without parser) took 1901.97 ms. Allocated memory is still 125.8 MB. Free memory was 90.9 MB in the beginning and 98.0 MB in the end (delta: -7.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:01,369 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 99.2 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:01,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.38 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 95.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:01,370 INFO L168 Benchmark]: Boogie Preprocessor took 47.11 ms. Allocated memory is still 125.8 MB. Free memory was 95.7 MB in the beginning and 92.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:01,371 INFO L168 Benchmark]: RCFGBuilder took 539.83 ms. Allocated memory is still 125.8 MB. Free memory was 92.9 MB in the beginning and 74.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:01,372 INFO L168 Benchmark]: TraceAbstraction took 875.65 ms. Allocated memory is still 125.8 MB. Free memory was 74.0 MB in the beginning and 98.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:01,372 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 125.8 MB. Free memory is still 98.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:01,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 99.2 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.38 ms. Allocated memory is still 125.8 MB. Free memory was 90.7 MB in the beginning and 95.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.11 ms. Allocated memory is still 125.8 MB. Free memory was 95.7 MB in the beginning and 92.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 539.83 ms. Allocated memory is still 125.8 MB. Free memory was 92.9 MB in the beginning and 74.7 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875.65 ms. Allocated memory is still 125.8 MB. Free memory was 74.0 MB in the beginning and 98.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.91 ms. Allocated memory is still 125.8 MB. Free memory is still 98.0 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L534] data.str.p2 = &data VAL [data={3:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={3:0}] [L536] return 0; [L536] return 0; VAL [\result=0] - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: 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: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: 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, 40 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 803.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 12.4ms, AutomataDifference: 133.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 11 SDslu, 17 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 22.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.7ms SsaConstructionTime, 100.0ms SatisfiabilityAnalysisTime, 251.2ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 00:21:01,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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 00:21:03,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:21:03,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:21:03,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:21:03,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:21:03,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:21:03,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:21:03,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:21:03,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:21:03,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:21:03,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:21:03,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:21:03,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:21:03,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:21:03,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:21:03,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:21:03,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:21:03,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:21:03,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:21:03,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:21:03,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:21:03,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:21:03,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:21:03,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:21:03,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:21:03,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:21:03,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:21:03,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:21:03,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:21:03,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:21:03,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:21:03,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:21:03,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:21:03,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:21:03,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:21:03,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:21:03,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:21:03,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:21:03,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:21:03,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:21:03,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:21:03,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-13 00:21:03,899 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:21:03,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:21:03,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:21:03,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:21:03,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:21:03,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:21:03,902 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:21:03,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:21:03,903 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:21:03,903 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:21:03,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:21:03,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:21:03,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:21:03,904 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 00:21:03,905 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 00:21:03,905 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 00:21:03,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:21:03,905 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 00:21:03,905 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:21:03,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:21:03,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:21:03,906 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:21:03,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:21:03,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:21:03,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:21:03,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:21:03,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:21:03,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:21:03,908 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:21:03,908 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:21:03,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:21:03,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:21:03,909 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_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2021-10-13 00:21:04,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:21:04,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:21:04,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:21:04,333 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:21:04,333 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:21:04,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-13 00:21:04,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/074e963f8/b99d6f2a8dc34e9f9419899b4a372dbb/FLAG0fb98da45 [2021-10-13 00:21:05,000 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:21:05,000 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-13 00:21:05,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/074e963f8/b99d6f2a8dc34e9f9419899b4a372dbb/FLAG0fb98da45 [2021-10-13 00:21:05,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/data/074e963f8/b99d6f2a8dc34e9f9419899b4a372dbb [2021-10-13 00:21:05,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:21:05,404 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 00:21:05,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:21:05,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:21:05,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:21:05,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186b3f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05, skipping insertion in model container [2021-10-13 00:21:05,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:21:05,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:21:05,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:21:05,711 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:21:05,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:21:05,847 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:21:05,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05 WrapperNode [2021-10-13 00:21:05,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:21:05,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:21:05,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:21:05,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:21:05,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:21:05,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:21:05,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:21:05,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:21:05,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (1/1) ... [2021-10-13 00:21:05,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:21:05,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:21:05,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:21:05,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:21:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-13 00:21:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:21:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:21:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-13 00:21:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-13 00:21:06,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-13 00:21:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-13 00:21:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-13 00:21:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-13 00:21:06,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-13 00:21:06,007 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-13 00:21:06,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-13 00:21:06,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-13 00:21:06,007 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-13 00:21:06,008 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-13 00:21:06,009 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-13 00:21:06,010 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-13 00:21:06,011 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-13 00:21:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-13 00:21:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-13 00:21:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-13 00:21:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-13 00:21:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-13 00:21:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-13 00:21:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-13 00:21:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-13 00:21:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-13 00:21:06,015 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-13 00:21:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-13 00:21:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-13 00:21:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-13 00:21:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-13 00:21:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-13 00:21:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-13 00:21:06,016 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-13 00:21:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-13 00:21:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-13 00:21:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-13 00:21:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-13 00:21:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-13 00:21:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 00:21:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 00:21:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-13 00:21:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:21:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-13 00:21:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:21:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:21:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-13 00:21:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-13 00:21:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 00:21:06,516 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:21:06,516 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-13 00:21:06,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:21:06 BoogieIcfgContainer [2021-10-13 00:21:06,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:21:06,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:21:06,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:21:06,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:21:06,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:21:05" (1/3) ... [2021-10-13 00:21:06,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed45bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:21:06, skipping insertion in model container [2021-10-13 00:21:06,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:21:05" (2/3) ... [2021-10-13 00:21:06,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed45bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:21:06, skipping insertion in model container [2021-10-13 00:21:06,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:21:06" (3/3) ... [2021-10-13 00:21:06,525 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-13 00:21:06,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:21:06,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-13 00:21:06,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:21:06,580 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 00:21:06,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-13 00:21:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 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 00:21:06,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:21:06,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:21:06,623 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:21:06,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-13 00:21:06,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:21:06,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1579467459, now seen corresponding path program 1 times [2021-10-13 00:21:06,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:21:06,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319327627] [2021-10-13 00:21:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:21:06,647 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:21:06,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:21:06,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:21:06,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:21:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:06,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:21:06,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:21:06,891 INFO L354 Elim1Store]: treesize reduction 13, result has 35.0 percent of original size [2021-10-13 00:21:06,892 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 00:21:06,923 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 00:21:06,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:21:06,969 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 00:21:06,969 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:21:06,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319327627] [2021-10-13 00:21:06,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319327627] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:21:06,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:21:06,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:21:06,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407231455] [2021-10-13 00:21:06,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:21:06,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:21:06,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:21:06,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:21:06,994 INFO L87 Difference]: Start difference. First operand has 22 states, 10 states have (on average 1.7) internal successors, (17), 17 states have internal predecessors, (17), 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 00:21:07,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:21:07,058 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-13 00:21:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:21:07,060 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 00:21:07,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:21:07,066 INFO L225 Difference]: With dead ends: 19 [2021-10-13 00:21:07,066 INFO L226 Difference]: Without dead ends: 16 [2021-10-13 00:21:07,068 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:21:07,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-13 00:21:07,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-13 00:21:07,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 12 states have internal predecessors, (12), 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 00:21:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-13 00:21:07,096 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2021-10-13 00:21:07,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:21:07,097 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-13 00:21:07,097 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 00:21:07,097 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-13 00:21:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:21:07,098 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:21:07,098 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:21:07,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 00:21:07,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:21:07,309 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-13 00:21:07,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:21:07,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1579467458, now seen corresponding path program 1 times [2021-10-13 00:21:07,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:21:07,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811900565] [2021-10-13 00:21:07,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:21:07,311 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:21:07,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:21:07,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:21:07,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:21:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:21:07,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:21:07,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:21:07,531 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-13 00:21:07,531 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 19 treesize of output 20 [2021-10-13 00:21:07,543 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 21 treesize of output 19 [2021-10-13 00:21:07,604 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 00:21:07,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:21:07,716 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 00:21:07,716 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:21:07,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811900565] [2021-10-13 00:21:07,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811900565] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:21:07,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:21:07,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 00:21:07,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057054573] [2021-10-13 00:21:07,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:21:07,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:21:07,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:21:07,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:21:07,723 INFO L87 Difference]: Start difference. First operand 16 states and 15 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 00:21:07,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:21:07,776 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-13 00:21:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:21:07,778 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 00:21:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:21:07,779 INFO L225 Difference]: With dead ends: 13 [2021-10-13 00:21:07,779 INFO L226 Difference]: Without dead ends: 13 [2021-10-13 00:21:07,780 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:21:07,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-13 00:21:07,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-13 00:21:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 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 00:21:07,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-13 00:21:07,782 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 7 [2021-10-13 00:21:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:21:07,782 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-13 00:21:07,783 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 00:21:07,783 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-13 00:21:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:21:07,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:21:07,784 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:21:07,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:07,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:21:07,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr6ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 2 more)] === [2021-10-13 00:21:07,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:21:07,985 INFO L82 PathProgramCache]: Analyzing trace with hash -816106894, now seen corresponding path program 1 times [2021-10-13 00:21:07,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:21:07,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323905219] [2021-10-13 00:21:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:21:07,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:21:07,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:21:07,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:21:07,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:21:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:21:08,137 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:21:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:21:08,217 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-13 00:21:08,217 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:21:08,218 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr6ENSURES_VIOLATIONMEMORY_LEAK [2021-10-13 00:21:08,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-13 00:21:08,220 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-13 00:21:08,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-13 00:21:08,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-13 00:21:08,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-13 00:21:08,221 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-13 00:21:08,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:21:08,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:21:08,426 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:21:08,437 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-13 00:21:08,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:21:08 BoogieIcfgContainer [2021-10-13 00:21:08,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:21:08,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:21:08,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:21:08,449 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:21:08,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:21:06" (3/4) ... [2021-10-13 00:21:08,455 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:21:08,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:21:08,461 INFO L168 Benchmark]: Toolchain (without parser) took 3052.41 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 50.4 MB in the beginning and 70.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:08,462 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:08,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.43 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 54.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:08,464 INFO L168 Benchmark]: Boogie Preprocessor took 56.95 ms. Allocated memory is still 71.3 MB. Free memory was 54.5 MB in the beginning and 51.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:08,465 INFO L168 Benchmark]: RCFGBuilder took 611.44 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 32.7 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:08,467 INFO L168 Benchmark]: TraceAbstraction took 1928.61 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 32.1 MB in the beginning and 70.8 MB in the end (delta: -38.7 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:21:08,469 INFO L168 Benchmark]: Witness Printer took 6.59 ms. Allocated memory is still 92.3 MB. Free memory was 70.8 MB in the beginning and 70.3 MB in the end (delta: 550.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:21:08,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.43 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 54.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.95 ms. Allocated memory is still 71.3 MB. Free memory was 54.5 MB in the beginning and 51.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 611.44 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 32.7 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1928.61 ms. Allocated memory was 71.3 MB in the beginning and 92.3 MB in the end (delta: 21.0 MB). Free memory was 32.1 MB in the beginning and 70.8 MB in the end (delta: -38.7 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Witness Printer took 6.59 ms. Allocated memory is still 92.3 MB. Free memory was 70.8 MB in the beginning and 70.3 MB in the end (delta: 550.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={4099:0}, malloc(37U)={1:0}] [L534] data.str.p2 = &data VAL [data={4099:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={4099:0}] [L536] return 0; [L536] return 0; VAL [\result=0] - UnprovableResult [Line: 533]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 533]: 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: 534]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: 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, 46 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1852.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 34.2ms, AutomataDifference: 149.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 19 SDtfs, 11 SDslu, 16 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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: 17.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.6ms SsaConstructionTime, 112.1ms SatisfiabilityAnalysisTime, 448.0ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 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 00:21:08,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c5e7ab-2080-46a4-a4fb-3a4fd976b043/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...