./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY --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 a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:43:15,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:43:15,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:43:15,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:43:15,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:43:15,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:43:15,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:43:15,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:43:15,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:43:15,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:43:15,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:43:15,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:43:15,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:43:15,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:43:15,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:43:15,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:43:15,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:43:15,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:43:15,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:43:15,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:43:15,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:43:15,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:43:15,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:43:15,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:43:15,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:43:15,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:43:15,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:43:15,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:43:15,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:43:16,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:43:16,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:43:16,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:43:16,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:43:16,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:43:16,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:43:16,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:43:16,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:43:16,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:43:16,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:43:16,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:43:16,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:43:16,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-07 07:43:16,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:43:16,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:43:16,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:43:16,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:43:16,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:43:16,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:43:16,059 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:43:16,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:43:16,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:43:16,060 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:43:16,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:43:16,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:43:16,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:43:16,061 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 07:43:16,062 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 07:43:16,062 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 07:43:16,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:43:16,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 07:43:16,063 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:43:16,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:43:16,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:43:16,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:43:16,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:43:16,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:16,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:43:16,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:43:16,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:43:16,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:43:16,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:43:16,071 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_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-11-07 07:43:16,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:43:16,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:43:16,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:43:16,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:43:16,418 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:43:16,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-11-07 07:43:16,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/3fa51ac41/787ebbb93ccc44969c96dfc168bbd273/FLAGad93621e0 [2021-11-07 07:43:16,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:43:16,968 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-11-07 07:43:16,987 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/3fa51ac41/787ebbb93ccc44969c96dfc168bbd273/FLAGad93621e0 [2021-11-07 07:43:17,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/3fa51ac41/787ebbb93ccc44969c96dfc168bbd273 [2021-11-07 07:43:17,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:43:17,295 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-07 07:43:17,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:17,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:43:17,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:43:17,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:17" (1/1) ... [2021-11-07 07:43:17,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b23f76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:17, skipping insertion in model container [2021-11-07 07:43:17,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:17" (1/1) ... [2021-11-07 07:43:17,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:43:17,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:43:17,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:17,742 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) [2021-11-07 07:43:17,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1257ea34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:17, skipping insertion in model container [2021-11-07 07:43:17,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:17,744 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-07 07:43:17,746 INFO L168 Benchmark]: Toolchain (without parser) took 449.33 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 71.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:43:17,746 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 26.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:43:17,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.96 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 71.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:43:17,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 71.4 MB in the end (delta: 26.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.96 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 71.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY --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 a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:43:19,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:43:19,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:43:19,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:43:19,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:43:19,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:43:19,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:43:19,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:43:19,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:43:19,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:43:19,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:43:19,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:43:19,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:43:19,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:43:19,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:43:19,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:43:19,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:43:19,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:43:19,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:43:19,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:43:19,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:43:19,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:43:19,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:43:19,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:43:19,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:43:19,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:43:19,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:43:19,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:43:19,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:43:19,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:43:19,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:43:19,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:43:19,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:43:19,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:43:19,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:43:19,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:43:19,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:43:19,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:43:19,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:43:19,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:43:19,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:43:19,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-07 07:43:19,951 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:43:19,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:43:19,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:43:19,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:43:19,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:43:19,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:43:19,956 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:43:19,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:43:19,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:43:19,956 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:43:19,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:43:19,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:43:19,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:43:19,958 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 07:43:19,958 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 07:43:19,959 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 07:43:19,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:43:19,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 07:43:19,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 07:43:19,960 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 07:43:19,960 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:43:19,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:43:19,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:43:19,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:43:19,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:43:19,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:19,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:43:19,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:43:19,962 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 07:43:19,962 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 07:43:19,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:43:19,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 07:43:19,963 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_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-11-07 07:43:20,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:43:20,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:43:20,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:43:20,352 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:43:20,353 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:43:20,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-11-07 07:43:20,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/1352450ee/9a27a96b99bc4ab9bf5d8947e6b1c374/FLAG26144e637 [2021-11-07 07:43:21,101 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:43:21,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-11-07 07:43:21,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/1352450ee/9a27a96b99bc4ab9bf5d8947e6b1c374/FLAG26144e637 [2021-11-07 07:43:21,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/data/1352450ee/9a27a96b99bc4ab9bf5d8947e6b1c374 [2021-11-07 07:43:21,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:43:21,296 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-07 07:43:21,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:21,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:43:21,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:43:21,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:21" (1/1) ... [2021-11-07 07:43:21,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16eadd32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:21, skipping insertion in model container [2021-11-07 07:43:21,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:21" (1/1) ... [2021-11-07 07:43:21,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:43:21,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:43:21,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:21,826 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 07:43:21,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:43:21,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:21,906 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:43:21,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:22,082 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:43:22,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22 WrapperNode [2021-11-07 07:43:22,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:22,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:43:22,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:43:22,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:43:22,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:43:22,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:43:22,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:43:22,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:43:22,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (1/1) ... [2021-11-07 07:43:22,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:22,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:43:22,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:43:22,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:43:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-07 07:43:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:43:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:43:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-07 07:43:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-07 07:43:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-07 07:43:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-07 07:43:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-07 07:43:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-07 07:43:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-07 07:43:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-07 07:43:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-07 07:43:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-07 07:43:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-07 07:43:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-07 07:43:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-07 07:43:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-07 07:43:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-07 07:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-07 07:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-07 07:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-07 07:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-07 07:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-07 07:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-07 07:43:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-07 07:43:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-07 07:43:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-07 07:43:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-07 07:43:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-07 07:43:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-07 07:43:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-07 07:43:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-07 07:43:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-07 07:43:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-07 07:43:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-07 07:43:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-07 07:43:22,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-07 07:43:22,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-07 07:43:22,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-07 07:43:22,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-07 07:43:22,335 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-07 07:43:22,335 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-07 07:43:22,335 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_14 [2021-11-07 07:43:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-07 07:43:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-07 07:43:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-07 07:43:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-07 07:43:22,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-07 07:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-07 07:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-07 07:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-07 07:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-07 07:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-07 07:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-07 07:43:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-07 07:43:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-07 07:43:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-07 07:43:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-07 07:43:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-07 07:43:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-07 07:43:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-07 07:43:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-07 07:43:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-07 07:43:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-07 07:43:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-07 07:43:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-07 07:43:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-07 07:43:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-07 07:43:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-07 07:43:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-07 07:43:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-07 07:43:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-07 07:43:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-07 07:43:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-07 07:43:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-07 07:43:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-07 07:43:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-07 07:43:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-07 07:43:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-07 07:43:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-07 07:43:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-07 07:43:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-07 07:43:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-07 07:43:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-07 07:43:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-07 07:43:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-07 07:43:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-07 07:43:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-07 07:43:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-07 07:43:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-07 07:43:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-07 07:43:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-07 07:43:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-07 07:43:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-07 07:43:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-07 07:43:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-07 07:43:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-07 07:43:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-07 07:43:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-07 07:43:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-07 07:43:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-07 07:43:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-07 07:43:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-07 07:43:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-07 07:43:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-07 07:43:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-07 07:43:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-07 07:43:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-07 07:43:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-07 07:43:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-07 07:43:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-07 07:43:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-07 07:43:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-07 07:43:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-07 07:43:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-07 07:43:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-07 07:43:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-07 07:43:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-07 07:43:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-07 07:43:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-07 07:43:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-07 07:43:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-07 07:43:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-07 07:43:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-07 07:43:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-07 07:43:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-07 07:43:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-07 07:43:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-07 07:43:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-07 07:43:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-07 07:43:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-07 07:43:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-07 07:43:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-07 07:43:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-07 07:43:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-07 07:43:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-07 07:43:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-07 07:43:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-07 07:43:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-07 07:43:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-07 07:43:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-07 07:43:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-07 07:43:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-07 07:43:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-07 07:43:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-07 07:43:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-07 07:43:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-07 07:43:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-07 07:43:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-07 07:43:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-07 07:43:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-07 07:43:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-07 07:43:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-07 07:43:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-07 07:43:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-07 07:43:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-07 07:43:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-07 07:43:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-07 07:43:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-07 07:43:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-07 07:43:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-07 07:43:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-07 07:43:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:43:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-07 07:43:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-07 07:43:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-07 07:43:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:43:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-07 07:43:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-07 07:43:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-07 07:43:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:43:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-07 07:43:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-07 07:43:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-07 07:43:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-07 07:43:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-07 07:43:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-07 07:43:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:43:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-07 07:43:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-07 07:43:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-07 07:43:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-07 07:43:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-07 07:43:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 07:43:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 07:43:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-07 07:43:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-07 07:43:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:43:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-07 07:43:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-07 07:43:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-07 07:43:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-07 07:43:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-07 07:43:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-07 07:43:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-07 07:43:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-07 07:43:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-07 07:43:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-07 07:43:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-07 07:43:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-07 07:43:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-07 07:43:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-07 07:43:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_14 [2021-11-07 07:43:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-07 07:43:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:43:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:43:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-07 07:43:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-07 07:43:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:43:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-07 07:43:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 07:43:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 07:43:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:43:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:43:22,990 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:43:23,322 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:43:23,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:43:23,622 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-07 07:43:23,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:23 BoogieIcfgContainer [2021-11-07 07:43:23,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:43:23,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:43:23,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:43:23,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:43:23,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:43:21" (1/3) ... [2021-11-07 07:43:23,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe18db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:23, skipping insertion in model container [2021-11-07 07:43:23,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:22" (2/3) ... [2021-11-07 07:43:23,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe18db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:23, skipping insertion in model container [2021-11-07 07:43:23,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:23" (3/3) ... [2021-11-07 07:43:23,633 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test14_1.i [2021-11-07 07:43:23,638 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:43:23,639 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-07 07:43:23,682 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:43:23,688 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 [2021-11-07 07:43:23,688 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-07 07:43:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-07 07:43:23,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 07:43:23,711 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:23,712 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:23,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:23,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:23,717 INFO L85 PathProgramCache]: Analyzing trace with hash 897974978, now seen corresponding path program 1 times [2021-11-07 07:43:23,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:23,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765909756] [2021-11-07 07:43:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:23,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:23,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:23,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:23,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 07:43:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:23,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:43:23,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:24,132 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 [2021-11-07 07:43:24,315 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 07:43:24,316 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 19 treesize of output 24 [2021-11-07 07:43:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:24,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:24,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:24,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765909756] [2021-11-07 07:43:24,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765909756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:24,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:24,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 9 [2021-11-07 07:43:24,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989113000] [2021-11-07 07:43:24,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:43:24,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:43:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:43:24,825 INFO L87 Difference]: Start difference. First operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:43:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:25,505 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2021-11-07 07:43:25,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:43:25,507 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-11-07 07:43:25,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:25,515 INFO L225 Difference]: With dead ends: 57 [2021-11-07 07:43:25,516 INFO L226 Difference]: Without dead ends: 54 [2021-11-07 07:43:25,520 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:43:25,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-07 07:43:25,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-11-07 07:43:25,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 33 states have internal predecessors, (34), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 07:43:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-11-07 07:43:25,564 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 19 [2021-11-07 07:43:25,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:25,564 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-11-07 07:43:25,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:43:25,565 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-11-07 07:43:25,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 07:43:25,566 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:25,566 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:25,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:25,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:25,770 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:25,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:25,772 INFO L85 PathProgramCache]: Analyzing trace with hash 897974979, now seen corresponding path program 1 times [2021-11-07 07:43:25,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:25,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749357263] [2021-11-07 07:43:25,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:25,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:25,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:25,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:25,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 07:43:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:25,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 07:43:25,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:26,004 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 [2021-11-07 07:43:26,011 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 [2021-11-07 07:43:28,273 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 07:43:28,274 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 31 treesize of output 33 [2021-11-07 07:43:28,286 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 07:43:28,286 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 25 treesize of output 25 [2021-11-07 07:43:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:28,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:40,222 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:40,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749357263] [2021-11-07 07:43:40,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749357263] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:40,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:40,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-11-07 07:43:40,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135818758] [2021-11-07 07:43:40,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 07:43:40,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:40,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 07:43:40,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=260, Unknown=3, NotChecked=0, Total=306 [2021-11-07 07:43:40,225 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 07:45:30,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:45:30,666 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2021-11-07 07:45:30,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:45:30,668 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2021-11-07 07:45:30,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:45:30,669 INFO L225 Difference]: With dead ends: 53 [2021-11-07 07:45:30,669 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 07:45:30,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 35.9s TimeCoverageRelationStatistics Valid=111, Invalid=578, Unknown=13, NotChecked=0, Total=702 [2021-11-07 07:45:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 07:45:30,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2021-11-07 07:45:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 1.434782608695652) internal successors, (33), 32 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 07:45:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-11-07 07:45:30,677 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 19 [2021-11-07 07:45:30,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:45:30,678 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-11-07 07:45:30,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 07:45:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-11-07 07:45:30,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 07:45:30,679 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:45:30,680 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:45:30,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 07:45:30,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:45:30,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:45:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:45:30,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1778354730, now seen corresponding path program 1 times [2021-11-07 07:45:30,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:45:30,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912047985] [2021-11-07 07:45:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:30,892 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:45:30,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:45:30,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:45:30,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 07:45:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:31,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 07:45:31,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:45:31,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-11-07 07:45:31,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:45:31,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:45:31,589 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-11-07 07:45:31,589 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 21 treesize of output 20 [2021-11-07 07:45:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:45:31,676 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:45:31,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912047985] [2021-11-07 07:45:31,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912047985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:45:31,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:45:31,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 10 [2021-11-07 07:45:31,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271680580] [2021-11-07 07:45:31,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:45:31,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:45:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:45:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:45:31,679 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:45:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:45:34,326 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-11-07 07:45:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:45:34,327 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-11-07 07:45:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:45:34,328 INFO L225 Difference]: With dead ends: 51 [2021-11-07 07:45:34,328 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 07:45:34,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:45:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 07:45:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-11-07 07:45:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 23 states have (on average 1.391304347826087) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 07:45:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-11-07 07:45:34,338 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 22 [2021-11-07 07:45:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:45:34,339 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-11-07 07:45:34,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 07:45:34,339 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-11-07 07:45:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 07:45:34,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:45:34,341 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:45:34,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:45:34,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:45:34,546 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:45:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:45:34,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1778354729, now seen corresponding path program 1 times [2021-11-07 07:45:34,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:45:34,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138399754] [2021-11-07 07:45:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:34,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:45:34,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:45:34,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:45:34,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 07:45:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:34,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-07 07:45:34,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:45:34,800 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 [2021-11-07 07:45:34,832 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 [2021-11-07 07:45:35,052 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 32 treesize of output 30 [2021-11-07 07:45:35,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-07 07:45:37,356 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 07:45:37,357 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 34 treesize of output 36 [2021-11-07 07:45:37,379 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 07:45:37,379 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 28 treesize of output 28 [2021-11-07 07:45:37,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-11-07 07:45:37,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-11-07 07:45:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:45:37,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:45:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:45:50,356 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:45:50,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138399754] [2021-11-07 07:45:50,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138399754] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:45:50,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:45:50,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 23 [2021-11-07 07:45:50,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686526221] [2021-11-07 07:45:50,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-07 07:45:50,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:45:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-07 07:45:50,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=490, Unknown=4, NotChecked=0, Total=552 [2021-11-07 07:45:50,359 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 07:46:38,408 WARN L207 SmtUtils]: Spent 10.28 s on a formula simplification that was a NOOP. DAG size: 74 [2021-11-07 07:47:16,777 WARN L207 SmtUtils]: Spent 8.69 s on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2021-11-07 07:48:52,001 WARN L207 SmtUtils]: Spent 6.12 s on a formula simplification that was a NOOP. DAG size: 67 [2021-11-07 07:50:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:12,623 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-11-07 07:50:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 07:50:12,647 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2021-11-07 07:50:12,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:50:12,650 INFO L225 Difference]: With dead ends: 55 [2021-11-07 07:50:12,650 INFO L226 Difference]: Without dead ends: 55 [2021-11-07 07:50:12,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 130.1s TimeCoverageRelationStatistics Valid=185, Invalid=1264, Unknown=33, NotChecked=0, Total=1482 [2021-11-07 07:50:12,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-07 07:50:12,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2021-11-07 07:50:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 07:50:12,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-11-07 07:50:12,659 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 22 [2021-11-07 07:50:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:50:12,660 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-11-07 07:50:12,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 07:50:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-11-07 07:50:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 07:50:12,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:50:12,662 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:12,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:50:12,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:50:12,866 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:50:12,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash 705578287, now seen corresponding path program 1 times [2021-11-07 07:50:12,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:50:12,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431793227] [2021-11-07 07:50:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:12,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:50:12,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:50:12,869 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:50:12,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 07:50:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:13,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:50:13,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:50:13,155 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 [2021-11-07 07:50:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:13,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:50:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:13,578 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:50:13,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431793227] [2021-11-07 07:50:13,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431793227] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:13,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:13,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-07 07:50:13,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967156725] [2021-11-07 07:50:13,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:50:13,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:50:13,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:50:13,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:50:13,580 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:50:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:14,162 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2021-11-07 07:50:14,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:50:14,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-11-07 07:50:14,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:50:14,165 INFO L225 Difference]: With dead ends: 66 [2021-11-07 07:50:14,165 INFO L226 Difference]: Without dead ends: 66 [2021-11-07 07:50:14,165 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:50:14,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-07 07:50:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2021-11-07 07:50:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-07 07:50:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2021-11-07 07:50:14,175 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 23 [2021-11-07 07:50:14,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:50:14,175 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2021-11-07 07:50:14,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:50:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2021-11-07 07:50:14,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 07:50:14,177 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:50:14,177 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:14,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:50:14,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:50:14,386 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __ldv_list_addErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:50:14,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:14,388 INFO L85 PathProgramCache]: Analyzing trace with hash 705578288, now seen corresponding path program 1 times [2021-11-07 07:50:14,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:50:14,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433518588] [2021-11-07 07:50:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:14,389 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:50:14,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:50:14,390 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:50:14,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 07:50:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:14,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 07:50:14,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:50:14,686 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 [2021-11-07 07:50:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:15,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:50:16,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:16,320 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:50:16,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433518588] [2021-11-07 07:50:16,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433518588] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:16,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:16,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-11-07 07:50:16,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654826179] [2021-11-07 07:50:16,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 07:50:16,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:50:16,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 07:50:16,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:50:16,323 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:50:17,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:17,690 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-11-07 07:50:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:50:17,691 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-11-07 07:50:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:50:17,692 INFO L225 Difference]: With dead ends: 64 [2021-11-07 07:50:17,692 INFO L226 Difference]: Without dead ends: 64 [2021-11-07 07:50:17,693 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:50:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-07 07:50:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2021-11-07 07:50:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 43 states have internal predecessors, (46), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-07 07:50:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-11-07 07:50:17,701 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 23 [2021-11-07 07:50:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:50:17,702 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-11-07 07:50:17,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:50:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-11-07 07:50:17,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 07:50:17,704 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:50:17,704 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:17,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 07:50:17,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:50:17,909 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:50:17,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 834661006, now seen corresponding path program 1 times [2021-11-07 07:50:17,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:50:17,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47314695] [2021-11-07 07:50:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:17,910 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:50:17,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:50:17,911 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:50:17,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 07:50:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:18,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:50:18,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:50:18,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:18,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:50:18,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:18,516 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:50:18,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47314695] [2021-11-07 07:50:18,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47314695] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:18,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:18,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:50:18,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437708455] [2021-11-07 07:50:18,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:50:18,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:50:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:50:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:50:18,519 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:50:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:18,542 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-11-07 07:50:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:50:18,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-11-07 07:50:18,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:50:18,547 INFO L225 Difference]: With dead ends: 45 [2021-11-07 07:50:18,547 INFO L226 Difference]: Without dead ends: 45 [2021-11-07 07:50:18,547 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 [2021-11-07 07:50:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-07 07:50:18,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-11-07 07:50:18,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-11-07 07:50:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-11-07 07:50:18,553 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 23 [2021-11-07 07:50:18,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:50:18,553 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-11-07 07:50:18,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:50:18,553 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-11-07 07:50:18,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 07:50:18,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:50:18,555 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:18,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:50:18,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:50:18,762 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:50:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:18,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1497151, now seen corresponding path program 1 times [2021-11-07 07:50:18,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:50:18,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248161156] [2021-11-07 07:50:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:18,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:50:18,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:50:18,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:50:18,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 07:50:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:18,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:50:18,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:50:19,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:19,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:50:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:19,306 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:50:19,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248161156] [2021-11-07 07:50:19,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248161156] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:50:19,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:19,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:50:19,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797351846] [2021-11-07 07:50:19,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:50:19,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:50:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:50:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:50:19,308 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:50:19,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:50:19,335 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-11-07 07:50:19,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:50:19,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-11-07 07:50:19,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:50:19,336 INFO L225 Difference]: With dead ends: 45 [2021-11-07 07:50:19,336 INFO L226 Difference]: Without dead ends: 45 [2021-11-07 07:50:19,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:50:19,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-07 07:50:19,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-11-07 07:50:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-11-07 07:50:19,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-11-07 07:50:19,341 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 22 [2021-11-07 07:50:19,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:50:19,342 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-11-07 07:50:19,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:50:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-11-07 07:50:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 07:50:19,343 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:50:19,344 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:50:19,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:50:19,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:50:19,550 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:50:19,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:50:19,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1798448510, now seen corresponding path program 1 times [2021-11-07 07:50:19,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:50:19,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048970739] [2021-11-07 07:50:19,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:19,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:50:19,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:50:19,553 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:50:19,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 07:50:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:19,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 07:50:19,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:50:19,829 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 07:50:19,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-07 07:50:24,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:24,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:50:35,003 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:50:35,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048970739] [2021-11-07 07:50:35,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_4|] [2021-11-07 07:50:35,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2096725011] [2021-11-07 07:50:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:35,005 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 07:50:35,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/cvc4 [2021-11-07 07:50:35,011 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 07:50:35,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-07 07:50:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:35,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:50:35,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:50:35,433 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 07:50:35,433 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 [2021-11-07 07:50:35,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-07 07:50:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:39,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:50:40,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2021-11-07 07:50:50,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_9|] [2021-11-07 07:50:50,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210873037] [2021-11-07 07:50:50,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:50:50,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:50:50,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:50:50,780 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:50:50,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 07:50:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:50:51,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:50:51,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:50:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:50:55,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:50:59,555 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_14| |c_#valid|) (exists ((|v_entry_point_~#list_14~0.base_20| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_~#list_14~0.base_20|)))))) is different from false [2021-11-07 07:50:59,627 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= (store |c_#valid| |c_entry_point_~#list_14~0.base| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_14|) (exists ((|v_entry_point_~#list_14~0.base_20| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_~#list_14~0.base_20|)))))) is different from false [2021-11-07 07:50:59,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_old(#valid)_BEFORE_CALL_14|] [2021-11-07 07:50:59,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:50:59,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 07:50:59,738 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-07 07:50:59,738 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 07:50:59,744 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-11-07 07:50:59,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,746 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,747 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,747 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,747 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,747 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,747 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,747 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,747 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,748 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,748 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,748 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,748 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-11-07 07:50:59,748 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-11-07 07:50:59,748 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-11-07 07:50:59,748 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-11-07 07:50:59,749 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,749 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,749 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,749 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,749 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,749 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,749 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-11-07 07:50:59,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-11-07 07:50:59,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,751 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-11-07 07:50:59,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-11-07 07:50:59,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,754 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:50:59,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,755 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-11-07 07:50:59,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-11-07 07:50:59,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-11-07 07:50:59,756 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-11-07 07:50:59,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:50:59,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:00,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:51:00,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:51:00,359 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:51:00,362 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:51:00,365 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-07 07:51:00,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:51:00 BoogieIcfgContainer [2021-11-07 07:51:00,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:51:00,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:51:00,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:51:00,382 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:51:00,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:23" (3/4) ... [2021-11-07 07:51:00,385 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:51:00,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:51:00,386 INFO L168 Benchmark]: Toolchain (without parser) took 459089.50 ms. Allocated memory was 65.0 MB in the beginning and 111.1 MB in the end (delta: 46.1 MB). Free memory was 42.6 MB in the beginning and 79.3 MB in the end (delta: -36.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:00,386 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:00,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.57 ms. Allocated memory is still 65.0 MB. Free memory was 42.5 MB in the beginning and 43.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:00,387 INFO L168 Benchmark]: Boogie Preprocessor took 144.94 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 39.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:00,387 INFO L168 Benchmark]: RCFGBuilder took 1395.00 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 38.8 MB in the beginning and 53.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:00,388 INFO L168 Benchmark]: TraceAbstraction took 456753.81 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 53.4 MB in the beginning and 79.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. [2021-11-07 07:51:00,388 INFO L168 Benchmark]: Witness Printer took 3.58 ms. Allocated memory is still 111.1 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:51:00,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 786.57 ms. Allocated memory is still 65.0 MB. Free memory was 42.5 MB in the beginning and 43.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 144.94 ms. Allocated memory is still 65.0 MB. Free memory was 43.7 MB in the beginning and 39.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1395.00 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 38.8 MB in the beginning and 53.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 456753.81 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 53.4 MB in the beginning and 79.3 MB in the end (delta: -25.9 MB). Peak memory consumption was 54.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.58 ms. Allocated memory is still 111.1 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 771]: 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 771. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L772] CALL entry_point() [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L769] CALL alloc_14(&list_14) [L762] CALL, EXPR ldv_malloc(sizeof(struct A14)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L762] RET, EXPR ldv_malloc(sizeof(struct A14)) [L762] struct A14 *p = (struct A14 *)ldv_malloc(sizeof(struct A14)); [L763] COND FALSE !(\read(*p)) [L769] RET alloc_14(&list_14) [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L772] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 337 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 456.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 378.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 265 SDtfs, 363 SDslu, 1247 SDs, 0 SdLazy, 1674 SolverSat, 145 SolverUnsat, 109 SolverUnknown, 0 SolverNotchecked, 231.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 237 SyntacticMatches, 17 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 168.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 49 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 49.2s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 351 ConstructedInterpolants, 37 QuantifiedInterpolants, 2962 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1134 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 07:51:00,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b27123a2-8a43-4bae-86ea-cd67edc70c3a/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN