./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.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_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/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_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/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_ad997d99-6fec-4b3a-972d-487d70c2adad/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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ................................................................................................................................... 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_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/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_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/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_ad997d99-6fec-4b3a-972d-487d70c2adad/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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:35:45,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:35:45,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:35:45,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:35:45,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:35:45,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:35:45,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:35:45,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:35:45,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:35:45,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:35:45,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:35:45,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:35:45,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:35:45,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:35:45,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:35:45,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:35:45,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:35:45,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:35:45,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:35:45,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:35:45,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:35:45,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:35:45,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:35:45,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:35:45,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:35:45,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:35:45,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:35:45,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:35:45,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:35:45,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:35:45,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:35:45,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:35:45,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:35:45,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:35:45,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:35:45,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:35:45,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:35:45,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:35:45,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:35:45,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:35:45,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:35:45,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:35:46,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:35:46,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:35:46,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:35:46,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:35:46,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:35:46,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:35:46,005 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:35:46,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:35:46,005 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:35:46,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:35:46,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:35:46,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:35:46,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:35:46,008 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:35:46,008 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:35:46,008 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:35:46,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:35:46,009 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:35:46,009 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:35:46,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:35:46,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:35:46,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:35:46,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:35:46,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:35:46,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:35:46,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:35:46,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:35:46,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:35:46,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:35:46,013 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_ad997d99-6fec-4b3a-972d-487d70c2adad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-28 23:35:46,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:35:46,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:35:46,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:35:46,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:35:46,343 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:35:46,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 23:35:46,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/595232b42/3080102626c446e29fceac1ea38ea574/FLAG444b772d6 [2021-10-28 23:35:47,003 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:35:47,003 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 23:35:47,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/595232b42/3080102626c446e29fceac1ea38ea574/FLAG444b772d6 [2021-10-28 23:35:47,313 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/595232b42/3080102626c446e29fceac1ea38ea574 [2021-10-28 23:35:47,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:35:47,317 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:35:47,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:47,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:35:47,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:35:47,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:47" (1/1) ... [2021-10-28 23:35:47,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ba003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:47, skipping insertion in model container [2021-10-28 23:35:47,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:47" (1/1) ... [2021-10-28 23:35:47,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:35:47,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:35:47,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:47,799 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 23:35:47,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a5760f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:47, skipping insertion in model container [2021-10-28 23:35:47,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:47,800 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:35:47,803 INFO L168 Benchmark]: Toolchain (without parser) took 484.27 ms. Allocated memory is still 102.8 MB. Free memory was 67.2 MB in the beginning and 73.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:35:47,804 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 102.8 MB. Free memory was 74.8 MB in the beginning and 74.8 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:35:47,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.40 ms. Allocated memory is still 102.8 MB. Free memory was 67.2 MB in the beginning and 73.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:35:47,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 102.8 MB. Free memory was 74.8 MB in the beginning and 74.8 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.40 ms. Allocated memory is still 102.8 MB. Free memory was 67.2 MB in the beginning and 73.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 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 23:35:50,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:35:50,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:35:50,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:35:50,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:35:50,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:35:50,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:35:50,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:35:50,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:35:50,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:35:50,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:35:50,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:35:50,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:35:50,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:35:50,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:35:50,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:35:50,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:35:50,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:35:50,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:35:50,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:35:50,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:35:50,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:35:50,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:35:50,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:35:50,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:35:50,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:35:50,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:35:50,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:35:50,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:35:50,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:35:50,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:35:50,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:35:50,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:35:50,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:35:50,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:35:50,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:35:50,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:35:50,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:35:50,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:35:50,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:35:50,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:35:50,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:35:50,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:35:50,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:35:50,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:35:50,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:35:50,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:35:50,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:35:50,346 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:35:50,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:35:50,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:35:50,347 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:35:50,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:35:50,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:35:50,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:35:50,349 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:35:50,349 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:35:50,349 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:35:50,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:35:50,350 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:35:50,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:35:50,350 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:35:50,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:35:50,351 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:35:50,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:35:50,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:35:50,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:35:50,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:35:50,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:35:50,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:35:50,353 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:35:50,353 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:35:50,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:35:50,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:35:50,354 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_ad997d99-6fec-4b3a-972d-487d70c2adad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-28 23:35:50,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:35:50,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:35:50,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:35:50,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:35:50,757 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:35:50,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 23:35:50,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/c32e5a0ba/3a97cee0d3a741139675865f4f60851a/FLAG45e992039 [2021-10-28 23:35:51,707 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:35:51,708 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 23:35:51,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/c32e5a0ba/3a97cee0d3a741139675865f4f60851a/FLAG45e992039 [2021-10-28 23:35:51,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/data/c32e5a0ba/3a97cee0d3a741139675865f4f60851a [2021-10-28 23:35:51,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:35:51,740 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:35:51,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:51,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:35:51,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:35:51,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:51" (1/1) ... [2021-10-28 23:35:51,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56aab228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:51, skipping insertion in model container [2021-10-28 23:35:51,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:51" (1/1) ... [2021-10-28 23:35:51,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:35:51,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:35:52,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:52,362 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:35:52,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:35:52,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:52,427 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:35:52,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:52,527 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:35:52,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52 WrapperNode [2021-10-28 23:35:52,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:52,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:35:52,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:35:52,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:35:52,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:35:52,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:35:52,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:35:52,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:35:52,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (1/1) ... [2021-10-28 23:35:52,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:35:52,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:35:52,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:35:52,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:35:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:35:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:35:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:35:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:35:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:35:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:35:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:35:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:35:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:35:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:35:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:35:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:35:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:35:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:35:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:35:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:35:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:35:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:35:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:35:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:35:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:35:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:35:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:35:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:35:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:35:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:35:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:35:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:35:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:35:52,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:35:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:35:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:35:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:35:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:35:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:35:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:35:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:35:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:35:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:35:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:35:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:35:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:35:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:35:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:35:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:35:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:35:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:35:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:35:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:35:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:35:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:35:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:35:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:35:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:35:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:35:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:35:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:35:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:35:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:35:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:35:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:35:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:35:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:35:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:35:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:35:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:35:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:35:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:35:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:35:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:35:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:35:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:35:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:35:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:35:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:35:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:35:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:35:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:35:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:35:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:35:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:35:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:35:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:35:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:35:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:35:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:35:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:35:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:35:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:35:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:35:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:35:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:35:52,743 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:35:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:35:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:35:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:35:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:35:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:35:52,744 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:35:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:35:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:35:52,745 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:35:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:35:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:35:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:35:52,746 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:35:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:35:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:35:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:35:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:35:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:35:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:35:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:35:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:35:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:35:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:35:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:35:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:35:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:35:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:35:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:35:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:35:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:35:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:35:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:35:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:35:52,755 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:35:52,756 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:35:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:35:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:35:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:35:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:35:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:35:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:35:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:35:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:35:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:35:52,765 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:35:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:35:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:35:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:35:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:35:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:35:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:35:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:35:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:35:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:35:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:35:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:35:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:35:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:35:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:35:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:35:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:35:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:35:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:35:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:35:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:35:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:35:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:35:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:35:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:35:52,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:35:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:35:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:35:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:35:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:35:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:35:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:35:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:35:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:35:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:35:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:35:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:35:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:35:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:35:52,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:35:52,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:35:52,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:35:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:35:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:35:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:35:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:35:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:35:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:35:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:35:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:35:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:35:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:35:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:35:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:35:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:35:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:35:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:35:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:35:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:35:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:35:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:35:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:35:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:35:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:35:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:35:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:35:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:35:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:35:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:35:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:35:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:35:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:35:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:35:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:35:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:35:53,455 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:35:53,798 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:35:54,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:35:54,189 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-28 23:35:54,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:54 BoogieIcfgContainer [2021-10-28 23:35:54,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:35:54,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:35:54,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:35:54,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:35:54,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:35:51" (1/3) ... [2021-10-28 23:35:54,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be605b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:35:54, skipping insertion in model container [2021-10-28 23:35:54,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:52" (2/3) ... [2021-10-28 23:35:54,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be605b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:35:54, skipping insertion in model container [2021-10-28 23:35:54,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:54" (3/3) ... [2021-10-28 23:35:54,202 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2021-10-28 23:35:54,209 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:35:54,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-10-28 23:35:54,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:35:54,272 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 23:35:54,272 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-10-28 23:35:54,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-28 23:35:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:35:54,300 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:54,301 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:35:54,302 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 77 more)] === [2021-10-28 23:35:54,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:54,308 INFO L85 PathProgramCache]: Analyzing trace with hash 917895108, now seen corresponding path program 1 times [2021-10-28 23:35:54,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:35:54,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192077046] [2021-10-28 23:35:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:54,322 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:35:54,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:35:54,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:35:54,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:35:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:35:54,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:35:54,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:35:54,736 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 23:35:54,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:35:54,873 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 23:35:54,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:35:54,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192077046] [2021-10-28 23:35:54,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192077046] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:35:54,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:35:54,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:35:54,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561494190] [2021-10-28 23:35:54,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:35:54,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:35:54,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:35:54,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:35:54,905 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 23:35:55,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:35:55,108 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-28 23:35:55,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:35:55,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 17 [2021-10-28 23:35:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:35:55,117 INFO L225 Difference]: With dead ends: 78 [2021-10-28 23:35:55,118 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 23:35:55,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 23:35:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 23:35:55,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-10-28 23:35:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:35:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-28 23:35:55,160 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-10-28 23:35:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:35:55,161 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-28 23:35:55,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 23:35:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-10-28 23:35:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:35:55,163 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:55,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:35:55,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:35:55,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:35:55,376 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 77 more)] === [2021-10-28 23:35:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:55,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1634261853, now seen corresponding path program 1 times [2021-10-28 23:35:55,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:35:55,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476422774] [2021-10-28 23:35:55,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:55,379 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:35:55,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:35:55,380 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:35:55,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:35:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:35:55,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:35:55,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:35:55,601 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 23:35:55,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:35:55,756 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 23:35:55,756 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:35:55,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476422774] [2021-10-28 23:35:55,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476422774] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:35:55,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:35:55,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:35:55,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531541444] [2021-10-28 23:35:55,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:35:55,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:35:55,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:35:55,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:35:55,761 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 23:35:55,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:35:55,874 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-10-28 23:35:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:35:55,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 17 [2021-10-28 23:35:55,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:35:55,881 INFO L225 Difference]: With dead ends: 76 [2021-10-28 23:35:55,881 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 23:35:55,882 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 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 23:35:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 23:35:55,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2021-10-28 23:35:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.56) internal successors, (39), 35 states have internal predecessors, (39), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 23:35:55,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-10-28 23:35:55,893 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2021-10-28 23:35:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:35:55,893 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-10-28 23:35:55,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 23:35:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-10-28 23:35:55,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:35:55,894 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:55,894 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:35:55,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:35:56,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:35:56,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:35:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1661450729, now seen corresponding path program 1 times [2021-10-28 23:35:56,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:35:56,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522196607] [2021-10-28 23:35:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:56,097 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:35:56,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:35:56,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:35:56,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:35:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:35:56,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:35:56,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:35:56,373 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 23:35:56,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:35:56,460 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 23:35:56,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:35:56,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522196607] [2021-10-28 23:35:56,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522196607] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:35:56,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:35:56,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:35:56,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390524683] [2021-10-28 23:35:56,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:35:56,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:35:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:35:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:35:56,470 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:35:56,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:35:56,564 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2021-10-28 23:35:56,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:35:56,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-10-28 23:35:56,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:35:56,567 INFO L225 Difference]: With dead ends: 93 [2021-10-28 23:35:56,567 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 23:35:56,567 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:35:56,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 23:35:56,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 51. [2021-10-28 23:35:56,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 41 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:35:56,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-10-28 23:35:56,578 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2021-10-28 23:35:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:35:56,579 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-10-28 23:35:56,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:35:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-10-28 23:35:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:35:56,580 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:56,580 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] [2021-10-28 23:35:56,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:35:56,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:35:56,784 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:35:56,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:56,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901776, now seen corresponding path program 1 times [2021-10-28 23:35:56,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:35:56,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559903561] [2021-10-28 23:35:56,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:56,786 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:35:56,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:35:56,787 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:35:56,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:35:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:35:56,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:35:56,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:35:57,082 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 23:35:57,234 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:35:57,234 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 21 treesize of output 26 [2021-10-28 23:35:57,309 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 23:35:57,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:35:57,648 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 23:35:57,649 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:35:57,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559903561] [2021-10-28 23:35:57,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559903561] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:35:57,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:35:57,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 23:35:57,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217856213] [2021-10-28 23:35:57,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:35:57,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:35:57,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:35:57,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:35:57,658 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 23:35:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:35:58,446 INFO L93 Difference]: Finished difference Result 157 states and 185 transitions. [2021-10-28 23:35:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:35:58,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 23 [2021-10-28 23:35:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:35:58,450 INFO L225 Difference]: With dead ends: 157 [2021-10-28 23:35:58,450 INFO L226 Difference]: Without dead ends: 157 [2021-10-28 23:35:58,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 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 23:35:58,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-28 23:35:58,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 70. [2021-10-28 23:35:58,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 57 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-28 23:35:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2021-10-28 23:35:58,464 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 23 [2021-10-28 23:35:58,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:35:58,464 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2021-10-28 23:35:58,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 23:35:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2021-10-28 23:35:58,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:35:58,466 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:58,466 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] [2021-10-28 23:35:58,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:35:58,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:35:58,678 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:35:58,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901775, now seen corresponding path program 1 times [2021-10-28 23:35:58,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:35:58,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58821855] [2021-10-28 23:35:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:58,680 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:35:58,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:35:58,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:35:58,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:35:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:35:58,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:35:58,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:35:59,015 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 23:35:59,023 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 23:36:01,474 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:36:01,475 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 32 treesize of output 34 [2021-10-28 23:36:01,489 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:36:01,490 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 26 treesize of output 26 [2021-10-28 23:36:01,597 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 23:36:01,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:36:20,626 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 29 treesize of output 27 [2021-10-28 23:36:21,278 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 27 treesize of output 25 [2021-10-28 23:36:21,450 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 23:36:21,450 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:36:21,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58821855] [2021-10-28 23:36:21,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58821855] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:36:21,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:36:21,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-28 23:36:21,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419177334] [2021-10-28 23:36:21,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:36:21,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:36:21,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:36:21,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=324, Unknown=6, NotChecked=0, Total=380 [2021-10-28 23:36:21,453 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:37:41,260 WARN L207 SmtUtils]: Spent 8.25 s on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-10-28 23:38:55,138 WARN L207 SmtUtils]: Spent 14.45 s on a formula simplification that was a NOOP. DAG size: 76 [2021-10-28 23:39:46,804 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base)) (forall ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_28 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_31|))))))))) is different from false [2021-10-28 23:41:38,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:38,017 INFO L93 Difference]: Finished difference Result 382 states and 442 transitions. [2021-10-28 23:41:38,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-28 23:41:38,018 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-28 23:41:38,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:38,022 INFO L225 Difference]: With dead ends: 382 [2021-10-28 23:41:38,023 INFO L226 Difference]: Without dead ends: 382 [2021-10-28 23:41:38,024 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 105.5s TimeCoverageRelationStatistics Valid=296, Invalid=1408, Unknown=22, NotChecked=80, Total=1806 [2021-10-28 23:41:38,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-28 23:41:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 113. [2021-10-28 23:41:38,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 94 states have internal predecessors, (127), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-10-28 23:41:38,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 156 transitions. [2021-10-28 23:41:38,049 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 156 transitions. Word has length 23 [2021-10-28 23:41:38,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:38,050 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 156 transitions. [2021-10-28 23:41:38,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 23:41:38,051 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 156 transitions. [2021-10-28 23:41:38,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:41:38,052 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:38,053 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] [2021-10-28 23:41:38,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:38,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:41:38,270 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:41:38,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:38,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1680506895, now seen corresponding path program 1 times [2021-10-28 23:41:38,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:41:38,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599198385] [2021-10-28 23:41:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:38,272 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:41:38,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:41:38,274 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:41:38,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:41:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:38,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:41:38,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:38,706 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 23:41:38,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:41:38,946 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 23:41:38,948 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:41:38,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599198385] [2021-10-28 23:41:38,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599198385] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:38,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:38,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 23:41:38,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963668032] [2021-10-28 23:41:38,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:41:38,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:41:38,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:41:38,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:41:38,966 INFO L87 Difference]: Start difference. First operand 113 states and 156 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 23:41:39,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:39,074 INFO L93 Difference]: Finished difference Result 104 states and 142 transitions. [2021-10-28 23:41:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:41:39,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 23 [2021-10-28 23:41:39,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:39,077 INFO L225 Difference]: With dead ends: 104 [2021-10-28 23:41:39,077 INFO L226 Difference]: Without dead ends: 100 [2021-10-28 23:41:39,077 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 23:41:39,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-28 23:41:39,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-10-28 23:41:39,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 76 states have (on average 1.486842105263158) internal successors, (113), 83 states have internal predecessors, (113), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 23:41:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2021-10-28 23:41:39,086 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 23 [2021-10-28 23:41:39,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:39,086 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2021-10-28 23:41:39,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 23:41:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2021-10-28 23:41:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:41:39,088 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:39,088 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, 1] [2021-10-28 23:41:39,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:39,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:41:39,312 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:41:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:39,313 INFO L85 PathProgramCache]: Analyzing trace with hash 569916636, now seen corresponding path program 1 times [2021-10-28 23:41:39,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:41:39,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231816405] [2021-10-28 23:41:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:39,314 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:41:39,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:41:39,315 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:41:39,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:41:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:39,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:41:39,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:39,699 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 23:41:39,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:41:39,830 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 23:41:39,831 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:41:39,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231816405] [2021-10-28 23:41:39,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231816405] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:39,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:39,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:41:39,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653477189] [2021-10-28 23:41:39,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:41:39,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:41:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:41:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:41:39,833 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 23:41:39,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:39,927 INFO L93 Difference]: Finished difference Result 146 states and 194 transitions. [2021-10-28 23:41:39,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:41:39,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 25 [2021-10-28 23:41:39,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:39,930 INFO L225 Difference]: With dead ends: 146 [2021-10-28 23:41:39,931 INFO L226 Difference]: Without dead ends: 146 [2021-10-28 23:41:39,931 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:41:39,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-28 23:41:39,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 104. [2021-10-28 23:41:39,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.425) internal successors, (114), 85 states have internal predecessors, (114), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 23:41:39,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2021-10-28 23:41:39,944 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 139 transitions. Word has length 25 [2021-10-28 23:41:39,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:39,944 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 139 transitions. [2021-10-28 23:41:39,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 23:41:39,945 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2021-10-28 23:41:39,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:41:39,946 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:39,946 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] [2021-10-28 23:41:39,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 23:41:40,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:41:40,160 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:41:40,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:40,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1982240325, now seen corresponding path program 1 times [2021-10-28 23:41:40,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:41:40,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714104150] [2021-10-28 23:41:40,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:40,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:41:40,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:41:40,162 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:41:40,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:41:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:40,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:41:40,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:41:40,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:41:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:41:40,666 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:41:40,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714104150] [2021-10-28 23:41:40,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714104150] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:40,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:40,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:41:40,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781245590] [2021-10-28 23:41:40,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:41:40,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:41:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:41:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:41:40,669 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:41:40,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:40,802 INFO L93 Difference]: Finished difference Result 102 states and 129 transitions. [2021-10-28 23:41:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:41:40,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-28 23:41:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:40,804 INFO L225 Difference]: With dead ends: 102 [2021-10-28 23:41:40,805 INFO L226 Difference]: Without dead ends: 102 [2021-10-28 23:41:40,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:40,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-28 23:41:40,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 96. [2021-10-28 23:41:40,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.3611111111111112) internal successors, (98), 77 states have internal predecessors, (98), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 23:41:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 123 transitions. [2021-10-28 23:41:40,814 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 123 transitions. Word has length 25 [2021-10-28 23:41:40,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:40,815 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 123 transitions. [2021-10-28 23:41:40,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:41:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 123 transitions. [2021-10-28 23:41:40,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:41:40,817 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:40,817 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] [2021-10-28 23:41:40,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:41,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:41:41,029 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:41:41,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:41,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1319909042, now seen corresponding path program 1 times [2021-10-28 23:41:41,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:41:41,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007644570] [2021-10-28 23:41:41,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:41,030 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:41:41,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:41:41,032 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:41:41,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:41:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:41,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:41:41,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:41,861 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 23:41:41,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:41:42,279 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 23:41:42,279 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:41:42,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007644570] [2021-10-28 23:41:42,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007644570] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:41:42,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:41:42,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-28 23:41:42,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338684856] [2021-10-28 23:41:42,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:41:42,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:41:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:41:42,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:41:42,281 INFO L87 Difference]: Start difference. First operand 96 states and 123 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 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 23:41:42,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:42,781 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2021-10-28 23:41:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:41:42,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 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 26 [2021-10-28 23:41:42,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:42,786 INFO L225 Difference]: With dead ends: 95 [2021-10-28 23:41:42,786 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 23:41:42,787 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:41:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 23:41:42,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-10-28 23:41:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 76 states have internal predecessors, (96), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 23:41:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 121 transitions. [2021-10-28 23:41:42,795 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 121 transitions. Word has length 26 [2021-10-28 23:41:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:42,796 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 121 transitions. [2021-10-28 23:41:42,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 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 23:41:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 121 transitions. [2021-10-28 23:41:42,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:41:42,798 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:42,798 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, 1, 1] [2021-10-28 23:41:42,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:43,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:41:43,011 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 23:41:43,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:43,011 INFO L85 PathProgramCache]: Analyzing trace with hash -446583614, now seen corresponding path program 1 times [2021-10-28 23:41:43,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:41:43,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89573354] [2021-10-28 23:41:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:43,012 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:41:43,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:41:43,013 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:41:43,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:41:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:43,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:41:43,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:43,820 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 23:41:43,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:41:48,292 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_~array~0.base_29 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store |c_old(#valid)| v_entry_point_~array~0.base_29 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_29)))))))))))))) is different from false [2021-10-28 23:41:48,436 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| (store |c_#valid| c_entry_point_~array~0.base (_ bv0 1))) (exists ((v_entry_point_~array~0.base_29 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store |c_old(#valid)| v_entry_point_~array~0.base_29 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_29)))))))))))))) is different from false [2021-10-28 23:41:49,026 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:41:49,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89573354] [2021-10-28 23:41:49,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_3)=(= (select v_prenex_3 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 23:41:49,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [233454296] [2021-10-28 23:41:49,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:49,027 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:41:49,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:41:49,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:41:49,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-28 23:41:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:49,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:41:49,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:49,703 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:41:49,703 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 23:41:54,532 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 23:41:54,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:42:06,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_5)=(= (select v_prenex_5 v_antiDerIndex_entry0_2) (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_2))} [2021-10-28 23:42:06,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793627530] [2021-10-28 23:42:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:06,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:42:06,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:42:06,351 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:42:06,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:42:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:42:06,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:42:06,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:42:07,218 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 23:42:07,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:42:20,872 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:42:20,872 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 72 treesize of output 119 [2021-10-28 23:42:21,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_9))=(not (= (select v_prenex_9 v_antiDerIndex_entry0_4) (select (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_antiDerIndex_entry0_4)))} [2021-10-28 23:42:21,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:42:21,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:42:21,715 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:42:21,715 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:42:21,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:42:21,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:42:21,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:42:21,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:42:21,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:42:21,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,729 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,730 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:42:21,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:42:21,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,731 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,732 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:42:21,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:42:21,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 23:42:21,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 23:42:21,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 23:42:21,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 23:42:21,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,740 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:42:21,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:21,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-28 23:42:22,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:42:22,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt [2021-10-28 23:42:22,348 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:42:22,352 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:42:22,356 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:42:22,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:42:22 BoogieIcfgContainer [2021-10-28 23:42:22,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:42:22,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:42:22,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:42:22,371 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:42:22,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:54" (3/4) ... [2021-10-28 23:42:22,380 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:42:22,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:42:22,382 INFO L168 Benchmark]: Toolchain (without parser) took 390640.80 ms. Allocated memory was 69.2 MB in the beginning and 132.1 MB in the end (delta: 62.9 MB). Free memory was 52.1 MB in the beginning and 64.6 MB in the end (delta: -12.5 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:22,383 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 50.4 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:42:22,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.89 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 34.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:22,384 INFO L168 Benchmark]: Boogie Preprocessor took 98.52 ms. Allocated memory is still 69.2 MB. Free memory was 34.8 MB in the beginning and 30.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:22,385 INFO L168 Benchmark]: RCFGBuilder took 1564.47 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 29.8 MB in the beginning and 51.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:22,385 INFO L168 Benchmark]: TraceAbstraction took 388175.22 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 50.9 MB in the beginning and 64.8 MB in the end (delta: -13.9 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:22,386 INFO L168 Benchmark]: Witness Printer took 9.47 ms. Allocated memory is still 132.1 MB. Free memory was 64.8 MB in the beginning and 64.6 MB in the end (delta: 233.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:42:22,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 69.2 MB. Free memory was 50.5 MB in the beginning and 50.4 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 786.89 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 34.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.52 ms. Allocated memory is still 69.2 MB. Free memory was 34.8 MB in the beginning and 30.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1564.47 ms. Allocated memory was 69.2 MB in the beginning and 94.4 MB in the end (delta: 25.2 MB). Free memory was 29.8 MB in the beginning and 51.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 388175.22 ms. Allocated memory was 94.4 MB in the beginning and 132.1 MB in the end (delta: 37.7 MB). Free memory was 50.9 MB in the beginning and 64.8 MB in the end (delta: -13.9 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.1 GB. * Witness Printer took 9.47 ms. Allocated memory is still 132.1 MB. Free memory was 64.8 MB in the beginning and 64.6 MB in the end (delta: 233.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 780]: 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 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] COND TRUE \read(**array) [L764] struct A18 *p; [L765] int i=0; [L766] int j; [L767] COND TRUE i=0) [L776] free(array) [L776] free(array) [L776] free(array) [L781] 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: 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: 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: 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: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 388.0s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 318.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 473 SDtfs, 1200 SDslu, 1524 SDs, 0 SdLazy, 1347 SolverSat, 197 SolverUnsat, 105 SolverUnknown, 0 SolverNotchecked, 225.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 419 GetRequests, 329 SyntacticMatches, 7 SemanticMatches, 83 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 106.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 80, 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, 9 MinimizatonAttempts, 502 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 405 ConstructedInterpolants, 26 QuantifiedInterpolants, 2075 SizeOfPredicates, 13 NumberOfNonLiveVariables, 916 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 34/52 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 23:42:22,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad997d99-6fec-4b3a-972d-487d70c2adad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...