./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c ................................................................................................................................... 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_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:49:32,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:49:32,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:49:32,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:49:32,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:49:32,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:49:32,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:49:32,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:49:32,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:49:32,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:49:32,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:49:32,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:49:32,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:49:32,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:49:32,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:49:32,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:49:32,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:49:32,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:49:32,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:49:32,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:49:32,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:49:32,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:49:32,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:49:32,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:49:32,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:49:32,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:49:32,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:49:32,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:49:32,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:49:32,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:49:32,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:49:32,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:49:32,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:49:32,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:49:32,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:49:32,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:49:32,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:49:32,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:49:32,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:49:32,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:49:32,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:49:32,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:49:32,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:49:32,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:49:32,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:49:32,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:49:32,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:49:32,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:49:32,264 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:49:32,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:49:32,265 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:49:32,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:49:32,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:49:32,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:49:32,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:49:32,268 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:49:32,269 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:49:32,269 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:49:32,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:49:32,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:49:32,270 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:49:32,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:49:32,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:49:32,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:49:32,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:49:32,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:49:32,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:49:32,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:49:32,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:49:32,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:49:32,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:49:32,275 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_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c [2021-10-28 23:49:32,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:49:32,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:49:32,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:49:32,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:49:32,686 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:49:32,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-28 23:49:32,790 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/35efa1905/8ccb1c924e3240be93c7fb94d383f0e3/FLAG3c6417f8d [2021-10-28 23:49:33,612 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:49:33,613 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-28 23:49:33,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/35efa1905/8ccb1c924e3240be93c7fb94d383f0e3/FLAG3c6417f8d [2021-10-28 23:49:33,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/35efa1905/8ccb1c924e3240be93c7fb94d383f0e3 [2021-10-28 23:49:33,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:49:33,651 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:49:33,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:33,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:49:33,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:49:33,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:33" (1/1) ... [2021-10-28 23:49:33,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e12442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:33, skipping insertion in model container [2021-10-28 23:49:33,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:33" (1/1) ... [2021-10-28 23:49:33,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:49:33,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:49:34,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:34,383 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 23:49:34,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79ab165e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:34, skipping insertion in model container [2021-10-28 23:49:34,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:34,389 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:49:34,393 INFO L168 Benchmark]: Toolchain (without parser) took 739.53 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.6 MB in the beginning and 74.9 MB in the end (delta: -25.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,396 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 58.4 MB in the beginning and 58.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:49:34,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.94 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.4 MB in the beginning and 75.5 MB in the end (delta: -26.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:49:34,401 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory was 58.4 MB in the beginning and 58.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 735.94 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.4 MB in the beginning and 75.5 MB in the end (delta: -26.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:49:37,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:49:37,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:49:37,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:49:37,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:49:37,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:49:37,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:49:37,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:49:37,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:49:37,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:49:37,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:49:37,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:49:37,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:49:37,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:49:37,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:49:37,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:49:37,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:49:37,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:49:37,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:49:37,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:49:37,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:49:37,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:49:37,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:49:37,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:49:37,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:49:37,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:49:37,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:49:37,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:49:37,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:49:37,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:49:37,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:49:37,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:49:37,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:49:37,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:49:37,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:49:37,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:49:37,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:49:37,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:49:37,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:49:37,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:49:37,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:49:37,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:49:37,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:49:37,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:49:37,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:49:37,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:49:37,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:49:37,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:49:37,527 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:49:37,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:49:37,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:49:37,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:49:37,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:49:37,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:49:37,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:49:37,530 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:49:37,530 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:49:37,531 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:49:37,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:49:37,531 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:49:37,532 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:49:37,532 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:49:37,532 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:49:37,532 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:49:37,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:49:37,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:49:37,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:49:37,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:49:37,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:49:37,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:49:37,535 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:49:37,535 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:49:37,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:49:37,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:49:37,536 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_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 207ea7efa81a205528159a2c1c5225b996f0eb4901bda418907cbc964f19b86c [2021-10-28 23:49:38,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:49:38,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:49:38,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:49:38,040 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:49:38,041 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:49:38,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-28 23:49:38,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/b112ba4e4/7a067378b7e9474785c7eb3ed999e564/FLAG85079ea7e [2021-10-28 23:49:39,014 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:49:39,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/sv-benchmarks/c/ldv-memsafety/memleaks_test10-1.i [2021-10-28 23:49:39,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/b112ba4e4/7a067378b7e9474785c7eb3ed999e564/FLAG85079ea7e [2021-10-28 23:49:39,197 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/data/b112ba4e4/7a067378b7e9474785c7eb3ed999e564 [2021-10-28 23:49:39,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:49:39,210 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:49:39,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:39,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:49:39,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:49:39,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:39" (1/1) ... [2021-10-28 23:49:39,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eab6454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:39, skipping insertion in model container [2021-10-28 23:49:39,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:49:39" (1/1) ... [2021-10-28 23:49:39,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:49:39,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:49:39,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:39,976 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:49:40,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:49:40,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:40,126 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:49:40,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:49:40,259 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:49:40,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40 WrapperNode [2021-10-28 23:49:40,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:49:40,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:49:40,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:49:40,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:49:40,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:49:40,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:49:40,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:49:40,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:49:40,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (1/1) ... [2021-10-28 23:49:40,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:49:40,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:49:40,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:49:40,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:49:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:49:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:49:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:49:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:49:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:49:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:49:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:49:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:49:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:49:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:49:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:49:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:49:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:49:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:49:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:49:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:49:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:49:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:49:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:49:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:49:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:49:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:49:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:49:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:49:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:49:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:49:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:49:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:49:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:49:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:49:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:49:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:49:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:49:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:49:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2021-10-28 23:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2021-10-28 23:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:49:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:49:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:49:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:49:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:49:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:49:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:49:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:49:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:49:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:49:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:49:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:49:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:49:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:49:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:49:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:49:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:49:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:49:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:49:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:49:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:49:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:49:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:49:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:49:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:49:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:49:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:49:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:49:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:49:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:49:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:49:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:49:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:49:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:49:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:49:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:49:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:49:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:49:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:49:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:49:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:49:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:49:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:49:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:49:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:49:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:49:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:49:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:49:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:49:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:49:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:49:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:49:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:49:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:49:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:49:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:49:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:49:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:49:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:49:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:49:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:49:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:49:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:49:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:49:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:49:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:49:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:49:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:49:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:49:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:49:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:49:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:49:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:49:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:49:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:49:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:49:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:49:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:49:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:49:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:49:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:49:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:49:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:49:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:49:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:49:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:49:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:49:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:49:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:49:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:49:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:49:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:49:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:49:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:49:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:49:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:49:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:49:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:49:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:49:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:49:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:49:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:49:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:49:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:49:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:49:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:49:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2021-10-28 23:49:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2021-10-28 23:49:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:49:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:49:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:49:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:49:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:49:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:49:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:49:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:49:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:49:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:49:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:49:41,420 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:49:42,043 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:49:42,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:49:42,697 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:49:42,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:42 BoogieIcfgContainer [2021-10-28 23:49:42,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:49:42,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:49:42,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:49:42,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:49:42,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:49:39" (1/3) ... [2021-10-28 23:49:42,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb897e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:49:42, skipping insertion in model container [2021-10-28 23:49:42,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:49:40" (2/3) ... [2021-10-28 23:49:42,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb897e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:49:42, skipping insertion in model container [2021-10-28 23:49:42,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:42" (3/3) ... [2021-10-28 23:49:42,713 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test10-1.i [2021-10-28 23:49:42,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:49:42,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 113 error locations. [2021-10-28 23:49:42,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:49:42,788 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:49:42,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2021-10-28 23:49:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 129 states have internal predecessors, (138), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 23:49:42,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:49:42,844 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:42,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:42,846 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:49:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:42,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2162883, now seen corresponding path program 1 times [2021-10-28 23:49:42,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:42,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041245696] [2021-10-28 23:49:42,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:42,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:42,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:42,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:42,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:49:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:43,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:49:43,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:43,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:43,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:43,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:43,522 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:43,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041245696] [2021-10-28 23:49:43,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041245696] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:43,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:43,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:49:43,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717110040] [2021-10-28 23:49:43,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:49:43,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:43,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:49:43,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:49:43,572 INFO L87 Difference]: Start difference. First operand has 156 states, 78 states have (on average 1.7692307692307692) internal successors, (138), 129 states have internal predecessors, (138), 15 states have call successors, (15), 11 states have call predecessors, (15), 11 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:49:43,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:43,851 INFO L93 Difference]: Finished difference Result 143 states and 160 transitions. [2021-10-28 23:49:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:49:43,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-10-28 23:49:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:49:43,867 INFO L225 Difference]: With dead ends: 143 [2021-10-28 23:49:43,868 INFO L226 Difference]: Without dead ends: 140 [2021-10-28 23:49:43,870 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:49:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-28 23:49:43,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 87. [2021-10-28 23:49:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 40 states have (on average 1.925) internal successors, (77), 73 states have internal predecessors, (77), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (11), 8 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-28 23:49:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2021-10-28 23:49:43,929 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 16 [2021-10-28 23:49:43,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:49:43,930 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2021-10-28 23:49:43,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:49:43,930 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2021-10-28 23:49:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:49:43,933 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:43,933 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:43,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:44,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:49:44,155 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:49:44,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:44,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1744973218, now seen corresponding path program 1 times [2021-10-28 23:49:44,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:44,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293953031] [2021-10-28 23:49:44,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:44,157 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:44,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:44,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:44,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:49:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:44,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:49:44,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:44,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:44,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:44,614 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:44,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293953031] [2021-10-28 23:49:44,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293953031] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:49:44,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:49:44,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:49:44,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051625481] [2021-10-28 23:49:44,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:49:44,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:49:44,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:49:44,629 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:49:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:44,962 INFO L93 Difference]: Finished difference Result 148 states and 164 transitions. [2021-10-28 23:49:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:49:44,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-10-28 23:49:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:49:44,966 INFO L225 Difference]: With dead ends: 148 [2021-10-28 23:49:44,966 INFO L226 Difference]: Without dead ends: 145 [2021-10-28 23:49:44,967 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:49:44,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-28 23:49:44,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 83. [2021-10-28 23:49:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 37 states have (on average 1.972972972972973) internal successors, (73), 70 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:49:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-10-28 23:49:44,986 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 16 [2021-10-28 23:49:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:49:44,986 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-10-28 23:49:44,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:49:44,987 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-10-28 23:49:44,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:49:44,988 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:44,988 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:45,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:45,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:49:45,189 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:49:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1671219437, now seen corresponding path program 1 times [2021-10-28 23:49:45,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:45,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053578457] [2021-10-28 23:49:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:45,191 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:45,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:45,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:45,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:49:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:45,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:49:45,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:45,516 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:49:45,714 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:49:45,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-10-28 23:49:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:45,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:49:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:46,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:49:46,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053578457] [2021-10-28 23:49:46,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053578457] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:49:46,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:49:46,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 23:49:46,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769855806] [2021-10-28 23:49:46,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:49:46,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:49:46,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:49:46,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:49:46,135 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:49:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:49:51,618 INFO L93 Difference]: Finished difference Result 182 states and 201 transitions. [2021-10-28 23:49:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:49:51,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2021-10-28 23:49:51,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:49:51,622 INFO L225 Difference]: With dead ends: 182 [2021-10-28 23:49:51,622 INFO L226 Difference]: Without dead ends: 182 [2021-10-28 23:49:51,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:49:51,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-28 23:49:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 93. [2021-10-28 23:49:51,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 48 states have (on average 1.7708333333333333) internal successors, (85), 77 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 9 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-28 23:49:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2021-10-28 23:49:51,641 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 19 [2021-10-28 23:49:51,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:49:51,641 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2021-10-28 23:49:51,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 23:49:51,642 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2021-10-28 23:49:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:49:51,643 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:49:51,643 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:49:51,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:49:51,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:49:51,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:49:51,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:49:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1671219436, now seen corresponding path program 1 times [2021-10-28 23:49:51,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:49:51,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517610462] [2021-10-28 23:49:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:49:51,859 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:49:51,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:49:51,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:49:51,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:49:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:49:52,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:49:52,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:49:52,187 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:49:52,196 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:49:54,602 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:49:54,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-10-28 23:49:54,623 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:49:54,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-10-28 23:49:54,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:49:54,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:08,216 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 31 treesize of output 29 [2021-10-28 23:50:08,353 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:08,353 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:08,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517610462] [2021-10-28 23:50:08,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517610462] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:50:08,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:08,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-28 23:50:08,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448737889] [2021-10-28 23:50:08,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 23:50:08,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:08,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:50:08,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=197, Unknown=5, NotChecked=0, Total=240 [2021-10-28 23:50:08,357 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:52:40,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:40,386 INFO L93 Difference]: Finished difference Result 249 states and 276 transitions. [2021-10-28 23:52:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:52:40,388 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2021-10-28 23:52:40,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:40,391 INFO L225 Difference]: With dead ends: 249 [2021-10-28 23:52:40,391 INFO L226 Difference]: Without dead ends: 249 [2021-10-28 23:52:40,392 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 53.6s TimeCoverageRelationStatistics Valid=116, Invalid=567, Unknown=19, NotChecked=0, Total=702 [2021-10-28 23:52:40,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-28 23:52:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 134. [2021-10-28 23:52:40,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.697674418604651) internal successors, (146), 111 states have internal predecessors, (146), 13 states have call successors, (13), 6 states have call predecessors, (13), 7 states have return successors, (22), 16 states have call predecessors, (22), 12 states have call successors, (22) [2021-10-28 23:52:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 181 transitions. [2021-10-28 23:52:40,415 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 181 transitions. Word has length 19 [2021-10-28 23:52:40,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:40,416 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 181 transitions. [2021-10-28 23:52:40,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 12 states have internal predecessors, (20), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:52:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 181 transitions. [2021-10-28 23:52:40,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:52:40,418 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:40,418 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:40,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:40,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:52:40,619 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:52:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash 826796500, now seen corresponding path program 1 times [2021-10-28 23:52:40,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:52:40,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749364762] [2021-10-28 23:52:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:40,621 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:52:40,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:52:40,623 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:52:40,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:52:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:40,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:52:40,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:52:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:40,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:52:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:52:41,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:52:41,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749364762] [2021-10-28 23:52:41,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749364762] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 23:52:41,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:52:41,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 23:52:41,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473198294] [2021-10-28 23:52:41,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:52:41,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:52:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:52:41,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:52:41,128 INFO L87 Difference]: Start difference. First operand 134 states and 181 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:52:41,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:41,190 INFO L93 Difference]: Finished difference Result 107 states and 133 transitions. [2021-10-28 23:52:41,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:52:41,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-10-28 23:52:41,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:41,192 INFO L225 Difference]: With dead ends: 107 [2021-10-28 23:52:41,193 INFO L226 Difference]: Without dead ends: 103 [2021-10-28 23:52:41,193 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:52:41,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-28 23:52:41,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-10-28 23:52:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 63 states have (on average 1.6984126984126984) internal successors, (107), 86 states have internal predecessors, (107), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-28 23:52:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 129 transitions. [2021-10-28 23:52:41,204 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 129 transitions. Word has length 19 [2021-10-28 23:52:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:41,205 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 129 transitions. [2021-10-28 23:52:41,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:52:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 129 transitions. [2021-10-28 23:52:41,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:52:41,207 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:41,207 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:41,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-28 23:52:41,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:52:41,421 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:52:41,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1188547394, now seen corresponding path program 1 times [2021-10-28 23:52:41,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:52:41,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396542257] [2021-10-28 23:52:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:41,422 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:52:41,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:52:41,424 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:52:41,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:52:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:41,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:52:41,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:52:41,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 12 [2021-10-28 23:52:41,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16 treesize of output 8 [2021-10-28 23:52:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:52:41,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:52:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:52:41,921 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:52:41,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396542257] [2021-10-28 23:52:41,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396542257] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:52:41,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:52:41,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 23:52:41,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429284632] [2021-10-28 23:52:41,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:52:41,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:52:41,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:52:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:52:41,924 INFO L87 Difference]: Start difference. First operand 103 states and 129 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:52:42,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:42,116 INFO L93 Difference]: Finished difference Result 113 states and 143 transitions. [2021-10-28 23:52:42,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:52:42,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2021-10-28 23:52:42,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:42,119 INFO L225 Difference]: With dead ends: 113 [2021-10-28 23:52:42,119 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 23:52:42,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:52:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 23:52:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2021-10-28 23:52:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 67 states have (on average 1.6567164179104477) internal successors, (111), 89 states have internal predecessors, (111), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 11 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-28 23:52:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2021-10-28 23:52:42,131 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 24 [2021-10-28 23:52:42,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:42,131 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2021-10-28 23:52:42,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:52:42,132 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2021-10-28 23:52:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:52:42,133 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:42,133 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:42,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:42,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:52:42,362 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:52:42,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:42,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1298965439, now seen corresponding path program 1 times [2021-10-28 23:52:42,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:52:42,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296592189] [2021-10-28 23:52:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:42,363 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:52:42,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:52:42,364 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:52:42,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:52:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:42,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:52:42,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:52:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:52:43,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:52:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:52:43,330 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:52:43,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296592189] [2021-10-28 23:52:43,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296592189] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:52:43,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:52:43,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-28 23:52:43,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672913137] [2021-10-28 23:52:43,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:52:43,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:52:43,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:52:43,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:52:43,332 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:52:43,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:43,803 INFO L93 Difference]: Finished difference Result 106 states and 131 transitions. [2021-10-28 23:52:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:52:43,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-10-28 23:52:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:43,806 INFO L225 Difference]: With dead ends: 106 [2021-10-28 23:52:43,806 INFO L226 Difference]: Without dead ends: 106 [2021-10-28 23:52:43,806 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:52:43,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-28 23:52:43,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-28 23:52:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 67 states have (on average 1.626865671641791) internal successors, (109), 88 states have internal predecessors, (109), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (13), 11 states have call predecessors, (13), 8 states have call successors, (13) [2021-10-28 23:52:43,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 131 transitions. [2021-10-28 23:52:43,816 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 131 transitions. Word has length 24 [2021-10-28 23:52:43,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:43,816 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 131 transitions. [2021-10-28 23:52:43,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:52:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 131 transitions. [2021-10-28 23:52:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:52:43,818 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:43,819 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:43,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:52:44,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:52:44,033 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr6REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:52:44,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:44,034 INFO L85 PathProgramCache]: Analyzing trace with hash 88403612, now seen corresponding path program 1 times [2021-10-28 23:52:44,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:52:44,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606394330] [2021-10-28 23:52:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:44,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:52:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:52:44,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:52:44,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:52:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:44,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:52:44,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:52:44,406 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:52:44,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 19 treesize of output 15 [2021-10-28 23:52:44,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 11 [2021-10-28 23:52:44,641 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:52:44,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-10-28 23:52:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:52:44,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:52:45,049 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:52:45,050 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:52:45,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606394330] [2021-10-28 23:52:45,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606394330] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:52:45,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:52:45,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-10-28 23:52:45,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104830245] [2021-10-28 23:52:45,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:52:45,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:52:45,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:52:45,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:52:45,052 INFO L87 Difference]: Start difference. First operand 106 states and 131 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:52:50,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:52:50,529 INFO L93 Difference]: Finished difference Result 152 states and 182 transitions. [2021-10-28 23:52:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:52:50,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2021-10-28 23:52:50,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:52:50,532 INFO L225 Difference]: With dead ends: 152 [2021-10-28 23:52:50,532 INFO L226 Difference]: Without dead ends: 152 [2021-10-28 23:52:50,532 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:52:50,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-28 23:52:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 110. [2021-10-28 23:52:50,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 70 states have (on average 1.6285714285714286) internal successors, (114), 90 states have internal predecessors, (114), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 23:52:50,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 139 transitions. [2021-10-28 23:52:50,542 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 139 transitions. Word has length 29 [2021-10-28 23:52:50,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:52:50,543 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 139 transitions. [2021-10-28 23:52:50,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 23:52:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 139 transitions. [2021-10-28 23:52:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:52:50,545 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:52:50,545 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:52:50,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-28 23:52:50,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:52:50,757 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr7REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:52:50,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:52:50,757 INFO L85 PathProgramCache]: Analyzing trace with hash 88403613, now seen corresponding path program 1 times [2021-10-28 23:52:50,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:52:50,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840520601] [2021-10-28 23:52:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:52:50,758 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:52:50,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:52:50,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:52:50,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:52:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:52:51,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:52:51,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:52:51,156 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:52:51,164 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:52:51,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 23:52:51,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 26 treesize of output 22 [2021-10-28 23:52:51,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 33 [2021-10-28 23:52:51,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 22 [2021-10-28 23:52:53,678 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:52:53,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2021-10-28 23:52:53,695 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:52:53,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 27 [2021-10-28 23:52:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:52:53,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:53:11,376 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 31 treesize of output 29 [2021-10-28 23:53:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:53:13,540 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:53:13,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840520601] [2021-10-28 23:53:13,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840520601] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:53:13,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:53:13,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-28 23:53:13,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023988853] [2021-10-28 23:53:13,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:53:13,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:53:13,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:53:13,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=256, Unknown=7, NotChecked=0, Total=306 [2021-10-28 23:53:13,543 INFO L87 Difference]: Start difference. First operand 110 states and 139 transitions. Second operand has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:55:56,994 WARN L207 SmtUtils]: Spent 8.26 s on a formula simplification that was a NOOP. DAG size: 76 [2021-10-28 23:57:43,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:43,714 INFO L93 Difference]: Finished difference Result 190 states and 218 transitions. [2021-10-28 23:57:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:57:43,715 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 29 [2021-10-28 23:57:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:43,716 INFO L225 Difference]: With dead ends: 190 [2021-10-28 23:57:43,717 INFO L226 Difference]: Without dead ends: 190 [2021-10-28 23:57:43,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 61.6s TimeCoverageRelationStatistics Valid=131, Invalid=729, Unknown=10, NotChecked=0, Total=870 [2021-10-28 23:57:43,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-28 23:57:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 110. [2021-10-28 23:57:43,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 70 states have (on average 1.6142857142857143) internal successors, (113), 90 states have internal predecessors, (113), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 23:57:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 138 transitions. [2021-10-28 23:57:43,727 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 138 transitions. Word has length 29 [2021-10-28 23:57:43,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:43,728 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 138 transitions. [2021-10-28 23:57:43,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:57:43,729 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 138 transitions. [2021-10-28 23:57:43,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:57:43,730 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:43,731 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:57:43,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:57:43,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:57:43,945 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting entry_pointErr7REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:57:43,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash 88433404, now seen corresponding path program 1 times [2021-10-28 23:57:43,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:57:43,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084980500] [2021-10-28 23:57:43,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:43,947 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:57:43,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:57:43,948 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:57:43,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:57:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:44,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:57:44,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:57:44,399 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:57:44,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 23:57:44,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-28 23:57:44,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 23 [2021-10-28 23:57:44,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-10-28 23:57:44,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:57:44,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:57:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:57:45,972 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:57:45,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084980500] [2021-10-28 23:57:45,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084980500] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:57:45,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:57:45,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-10-28 23:57:45,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986353046] [2021-10-28 23:57:45,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:57:45,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:57:45,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:57:45,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:57:45,974 INFO L87 Difference]: Start difference. First operand 110 states and 138 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:57:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:57:47,961 INFO L93 Difference]: Finished difference Result 113 states and 138 transitions. [2021-10-28 23:57:47,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:57:47,963 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 29 [2021-10-28 23:57:47,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:57:47,965 INFO L225 Difference]: With dead ends: 113 [2021-10-28 23:57:47,965 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 23:57:47,966 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:57:47,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 23:57:47,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 110. [2021-10-28 23:57:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 70 states have (on average 1.6) internal successors, (112), 90 states have internal predecessors, (112), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 23:57:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2021-10-28 23:57:47,981 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 29 [2021-10-28 23:57:47,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:57:47,981 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2021-10-28 23:57:47,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 12 states have internal predecessors, (31), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:57:47,982 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2021-10-28 23:57:47,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 23:57:47,983 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:57:47,984 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:57:47,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:57:48,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:57:48,192 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 109 more)] === [2021-10-28 23:57:48,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:57:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1144478410, now seen corresponding path program 1 times [2021-10-28 23:57:48,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:57:48,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228098819] [2021-10-28 23:57:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:48,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:57:48,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:57:48,195 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:57:48,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 23:57:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:48,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:57:48,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:57:48,579 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:57:48,579 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 9 treesize of output 15 [2021-10-28 23:57:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:57:53,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:57:57,624 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| |c_#valid|) (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))))) is different from false [2021-10-28 23:57:58,409 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:57:58,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228098819] [2021-10-28 23:57:58,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_prenex_1)=(= (select v_prenex_1 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 23:57:58,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1770019087] [2021-10-28 23:57:58,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:58,410 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:57:58,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:57:58,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:57:58,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-28 23:57:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:59,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:57:59,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:57:59,100 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:57:59,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-28 23:58:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:58:01,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:58:12,357 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))) (= |v_old(#valid)_BEFORE_CALL_13| (store |c_#valid| c_entry_point_~a10~0.base (_ bv0 1))))) is different from false [2021-10-28 23:58:12,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_prenex_5)=(= (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~a10~0.base_42 (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_5 v_antiDerIndex_entry0_2))} [2021-10-28 23:58:12,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114690631] [2021-10-28 23:58:12,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:12,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:58:12,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:12,844 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:58:12,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 23:58:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:13,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:58:13,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:58:13,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:58:24,187 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_18| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~a10~0.base_42 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_18| (store |c_old(#valid)| v_entry_point_~a10~0.base_42 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~a10~0.base_42)))))))) (= |v_old(#valid)_BEFORE_CALL_18| (store |c_#valid| c_entry_point_~a10~0.base (_ bv0 1))))) is different from false [2021-10-28 23:58:24,969 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-28 23:58:24,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 114 [2021-10-28 23:58:25,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| v_entry_point_~a10~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_7))=(not (= (select (store |old(#valid)| v_entry_point_~a10~0.base_BEFORE_CALL_12 (_ bv0 1)) v_antiDerIndex_entry0_4) (select v_prenex_7 v_antiDerIndex_entry0_4)))} [2021-10-28 23:58:25,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:25,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:58:25,790 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:58:25,790 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:58:25,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:58:25,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:58:25,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:58:25,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:58:25,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:58:25,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err0REQUIRES_VIOLATION [2021-10-28 23:58:25,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err1REQUIRES_VIOLATION [2021-10-28 23:58:25,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err2REQUIRES_VIOLATION [2021-10-28 23:58:25,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err3REQUIRES_VIOLATION [2021-10-28 23:58:25,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err4REQUIRES_VIOLATION [2021-10-28 23:58:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location alloc_10Err5REQUIRES_VIOLATION [2021-10-28 23:58:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:58:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:58:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:58:25,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:58:25,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err0REQUIRES_VIOLATION [2021-10-28 23:58:25,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err1REQUIRES_VIOLATION [2021-10-28 23:58:25,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err2REQUIRES_VIOLATION [2021-10-28 23:58:25,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err3REQUIRES_VIOLATION [2021-10-28 23:58:25,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err4REQUIRES_VIOLATION [2021-10-28 23:58:25,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err5REQUIRES_VIOLATION [2021-10-28 23:58:25,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_10Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 23:58:25,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 23:58:25,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 23:58:25,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 23:58:25,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4REQUIRES_VIOLATION [2021-10-28 23:58:25,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5REQUIRES_VIOLATION [2021-10-28 23:58:25,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6REQUIRES_VIOLATION [2021-10-28 23:58:25,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7REQUIRES_VIOLATION [2021-10-28 23:58:25,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8REQUIRES_VIOLATION [2021-10-28 23:58:25,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9REQUIRES_VIOLATION [2021-10-28 23:58:25,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr10REQUIRES_VIOLATION [2021-10-28 23:58:25,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr11REQUIRES_VIOLATION [2021-10-28 23:58:25,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr12REQUIRES_VIOLATION [2021-10-28 23:58:25,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr13REQUIRES_VIOLATION [2021-10-28 23:58:25,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr14REQUIRES_VIOLATION [2021-10-28 23:58:25,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr15REQUIRES_VIOLATION [2021-10-28 23:58:25,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr19REQUIRES_VIOLATION [2021-10-28 23:58:25,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr20REQUIRES_VIOLATION [2021-10-28 23:58:25,822 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:58:25,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:26,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:26,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-28 23:58:26,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:58:26,446 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:58:26,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:58:26,456 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:58:26,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:58:26 BoogieIcfgContainer [2021-10-28 23:58:26,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:58:26,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:58:26,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:58:26,468 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:58:26,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:49:42" (3/4) ... [2021-10-28 23:58:26,471 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:58:26,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:58:26,473 INFO L168 Benchmark]: Toolchain (without parser) took 527261.96 ms. Allocated memory was 73.4 MB in the beginning and 102.8 MB in the end (delta: 29.4 MB). Free memory was 56.0 MB in the beginning and 48.6 MB in the end (delta: 7.4 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:26,473 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 54.1 MB in the end (delta: 59.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:26,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1047.92 ms. Allocated memory is still 73.4 MB. Free memory was 55.9 MB in the beginning and 38.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:26,474 INFO L168 Benchmark]: Boogie Preprocessor took 193.94 ms. Allocated memory is still 73.4 MB. Free memory was 38.3 MB in the beginning and 33.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:26,475 INFO L168 Benchmark]: RCFGBuilder took 2244.01 ms. Allocated memory was 73.4 MB in the beginning and 102.8 MB in the end (delta: 29.4 MB). Free memory was 33.5 MB in the beginning and 60.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:26,475 INFO L168 Benchmark]: TraceAbstraction took 523762.62 ms. Allocated memory is still 102.8 MB. Free memory was 59.6 MB in the beginning and 48.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:26,476 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 102.8 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:26,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 54.1 MB in the end (delta: 59.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1047.92 ms. Allocated memory is still 73.4 MB. Free memory was 55.9 MB in the beginning and 38.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 193.94 ms. Allocated memory is still 73.4 MB. Free memory was 38.3 MB in the beginning and 33.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2244.01 ms. Allocated memory was 73.4 MB in the beginning and 102.8 MB in the end (delta: 29.4 MB). Free memory was 33.5 MB in the beginning and 60.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 523762.62 ms. Allocated memory is still 102.8 MB. Free memory was 59.6 MB in the beginning and 48.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.52 ms. Allocated memory is still 102.8 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 786]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 786. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L787] CALL entry_point() [L773] CALL, EXPR ldv_malloc(sizeof(struct A10)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L773] RET, EXPR ldv_malloc(sizeof(struct A10)) [L773] struct A10 *a10 = (struct A10 *)ldv_malloc(sizeof(struct A10)); [L774] COND FALSE !(!a10) [L775] CALL, EXPR ldv_malloc(sizeof(struct B10)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(struct B10)) [L775] a10->b = (struct B10 *)ldv_malloc(sizeof(struct B10)) [L776] EXPR a10->b [L776] COND TRUE !a10->b [L784] free(a10) [L784] free(a10) [L784] free(a10) [L787] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 778]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 780]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 784]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 414 locations, 113 error locations. Started 1 CEGAR loops. OverallTime: 523.6s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 436.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 792 SDtfs, 1195 SDslu, 2762 SDs, 0 SdLazy, 3281 SolverSat, 333 SolverUnsat, 155 SolverUnknown, 0 SolverNotchecked, 346.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 488 GetRequests, 361 SyntacticMatches, 9 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 117.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=0, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 450 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 53.5s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 455 ConstructedInterpolants, 52 QuantifiedInterpolants, 3162 SizeOfPredicates, 37 NumberOfNonLiveVariables, 1122 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 82/116 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 [2021-10-28 23:58:26,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787412df-aa35-4848-8f5c-c14cf5ae6142/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...