./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL --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 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:19:40,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:19:40,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:19:40,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:19:40,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:19:40,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:19:40,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:19:40,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:19:40,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:19:40,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:19:40,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:19:40,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:19:40,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:19:40,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:19:40,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:19:40,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:19:40,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:19:40,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:19:40,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:19:40,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:19:40,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:19:40,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:19:40,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:19:40,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:19:40,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:19:40,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:19:40,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:19:40,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:19:40,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:19:40,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:19:40,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:19:40,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:19:40,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:19:40,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:19:40,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:19:40,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:19:40,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:19:40,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:19:40,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:19:40,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:19:40,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:19:40,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-19 04:19:40,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:19:40,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:19:40,735 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:19:40,735 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:19:40,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:19:40,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:19:40,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:19:40,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:19:40,738 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:19:40,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:19:40,740 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:19:40,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:19:40,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:19:40,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:19:40,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:19:40,742 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 04:19:40,742 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 04:19:40,743 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 04:19:40,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:19:40,743 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 04:19:40,743 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:19:40,744 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:19:40,744 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:19:40,744 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:19:40,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:19:40,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:19:40,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:19:40,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:19:40,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:19:40,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:19:40,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:19:40,749 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_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 [2021-11-19 04:19:41,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:19:41,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:19:41,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:19:41,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:19:41,129 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:19:41,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-11-19 04:19:41,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/0867ad526/ea9e7c9af6284c26b4213acb0e7bf2de/FLAGc9756a8d1 [2021-11-19 04:19:41,925 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:19:41,926 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-11-19 04:19:41,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/0867ad526/ea9e7c9af6284c26b4213acb0e7bf2de/FLAGc9756a8d1 [2021-11-19 04:19:42,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/0867ad526/ea9e7c9af6284c26b4213acb0e7bf2de [2021-11-19 04:19:42,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:19:42,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 04:19:42,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:19:42,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:19:42,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:19:42,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:19:42" (1/1) ... [2021-11-19 04:19:42,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3001403a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:42, skipping insertion in model container [2021-11-19 04:19:42,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:19:42" (1/1) ... [2021-11-19 04:19:42,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:19:42,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:19:42,870 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:19:42,900 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) [2021-11-19 04:19:42,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a8d45fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:42, skipping insertion in model container [2021-11-19 04:19:42,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:19:42,902 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-19 04:19:42,906 INFO L158 Benchmark]: Toolchain (without parser) took 770.94ms. Allocated memory is still 86.0MB. Free memory was 51.8MB in the beginning and 58.8MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:19:42,908 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:19:42,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.59ms. Allocated memory is still 86.0MB. Free memory was 51.7MB in the beginning and 58.8MB in the end (delta: -7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:19:42,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 86.0MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.59ms. Allocated memory is still 86.0MB. Free memory was 51.7MB in the beginning and 58.8MB in the end (delta: -7.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * 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_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL --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 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:19:45,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:19:45,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:19:45,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:19:45,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:19:45,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:19:45,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:19:45,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:19:45,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:19:45,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:19:45,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:19:45,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:19:45,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:19:45,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:19:45,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:19:45,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:19:45,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:19:45,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:19:45,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:19:45,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:19:45,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:19:45,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:19:45,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:19:45,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:19:46,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:19:46,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:19:46,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:19:46,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:19:46,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:19:46,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:19:46,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:19:46,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:19:46,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:19:46,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:19:46,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:19:46,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:19:46,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:19:46,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:19:46,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:19:46,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:19:46,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:19:46,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-19 04:19:46,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:19:46,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:19:46,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:19:46,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:19:46,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:19:46,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:19:46,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:19:46,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:19:46,056 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:19:46,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:19:46,057 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:19:46,057 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:19:46,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:19:46,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:19:46,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:19:46,058 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 04:19:46,058 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 04:19:46,059 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 04:19:46,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:19:46,059 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 04:19:46,060 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:19:46,060 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:19:46,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:19:46,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:19:46,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:19:46,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:19:46,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:19:46,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:19:46,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:19:46,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:19:46,063 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:19:46,063 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:19:46,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:19:46,064 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:19:46,064 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_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c93f411f7e7984964960171e6986ff89eb89f75783c8b2783bb47b46e751d9 [2021-11-19 04:19:46,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:19:46,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:19:46,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:19:46,547 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:19:46,548 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:19:46,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-11-19 04:19:46,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/438c1cd14/a4cb4813777b457da58d4f3024f067fd/FLAG298b223ab [2021-11-19 04:19:47,346 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:19:47,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/sv-benchmarks/c/ldv-memsafety/memleaks_test19-1.i [2021-11-19 04:19:47,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/438c1cd14/a4cb4813777b457da58d4f3024f067fd/FLAG298b223ab [2021-11-19 04:19:47,540 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/data/438c1cd14/a4cb4813777b457da58d4f3024f067fd [2021-11-19 04:19:47,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:19:47,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 04:19:47,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:19:47,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:19:47,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:19:47,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:19:47" (1/1) ... [2021-11-19 04:19:47,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6846f2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:47, skipping insertion in model container [2021-11-19 04:19:47,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:19:47" (1/1) ... [2021-11-19 04:19:47,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:19:47,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:19:48,233 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:19:48,263 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 04:19:48,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:19:48,388 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:19:48,410 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:19:48,466 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:19:48,522 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:19:48,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48 WrapperNode [2021-11-19 04:19:48,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:19:48,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:19:48,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:19:48,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:19:48,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:19:48,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:19:48,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:19:48,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:19:48,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (1/1) ... [2021-11-19 04:19:48,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:19:48,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:19:48,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:19:48,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:19:48,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-19 04:19:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:19:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 04:19:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 04:19:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-19 04:19:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-19 04:19:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-19 04:19:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-19 04:19:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-19 04:19:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-19 04:19:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-19 04:19:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 04:19:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 04:19:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-19 04:19:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-19 04:19:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-19 04:19:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-19 04:19:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-19 04:19:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-19 04:19:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-19 04:19:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-19 04:19:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-19 04:19:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-19 04:19:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-19 04:19:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-19 04:19:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 04:19:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-19 04:19:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-19 04:19:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-19 04:19:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-19 04:19:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-19 04:19:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-19 04:19:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-19 04:19:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-19 04:19:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-19 04:19:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-19 04:19:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-19 04:19:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-19 04:19:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-19 04:19:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-19 04:19:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-19 04:19:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-19 04:19:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2021-11-19 04:19:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2021-11-19 04:19:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2021-11-19 04:19:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_19 [2021-11-19 04:19:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2021-11-19 04:19:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-19 04:19:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-19 04:19:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 04:19:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 04:19:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 04:19:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-19 04:19:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-19 04:19:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-19 04:19:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-19 04:19:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-19 04:19:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-19 04:19:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-19 04:19:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-19 04:19:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-19 04:19:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-19 04:19:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-19 04:19:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-19 04:19:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-19 04:19:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-19 04:19:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-19 04:19:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-19 04:19:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-19 04:19:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-19 04:19:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-19 04:19:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-19 04:19:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-19 04:19:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-19 04:19:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-19 04:19:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-19 04:19:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-19 04:19:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-19 04:19:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-19 04:19:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-19 04:19:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-19 04:19:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-19 04:19:48,829 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-19 04:19:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-19 04:19:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-19 04:19:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-19 04:19:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-19 04:19:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-19 04:19:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-19 04:19:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-19 04:19:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-19 04:19:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-19 04:19:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-19 04:19:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-19 04:19:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-19 04:19:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-19 04:19:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-19 04:19:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-19 04:19:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-19 04:19:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-19 04:19:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-19 04:19:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-19 04:19:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-19 04:19:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-19 04:19:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-19 04:19:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-19 04:19:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-19 04:19:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-19 04:19:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-19 04:19:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-19 04:19:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-19 04:19:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-19 04:19:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-19 04:19:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-19 04:19:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-19 04:19:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-19 04:19:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-19 04:19:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-19 04:19:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-19 04:19:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-19 04:19:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-19 04:19:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-19 04:19:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-19 04:19:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-19 04:19:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-19 04:19:48,837 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-19 04:19:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-19 04:19:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-19 04:19:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-19 04:19:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-19 04:19:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-19 04:19:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-19 04:19:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-19 04:19:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-19 04:19:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-19 04:19:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-19 04:19:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-19 04:19:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-19 04:19:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-19 04:19:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-19 04:19:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-19 04:19:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-19 04:19:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-19 04:19:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-19 04:19:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-19 04:19:48,840 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-19 04:19:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-19 04:19:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-19 04:19:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-19 04:19:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-19 04:19:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-19 04:19:48,841 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-19 04:19:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 04:19:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-19 04:19:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-19 04:19:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-19 04:19:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-19 04:19:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-19 04:19:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 04:19:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 04:19:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 04:19:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 04:19:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-19 04:19:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 04:19:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-19 04:19:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-19 04:19:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-19 04:19:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 04:19:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-19 04:19:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-19 04:19:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-19 04:19:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-19 04:19:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 04:19:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-19 04:19:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:19:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-19 04:19:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-19 04:19:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-19 04:19:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 04:19:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-19 04:19:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 04:19:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 04:19:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-19 04:19:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-19 04:19:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 04:19:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-19 04:19:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-19 04:19:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-19 04:19:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-19 04:19:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-19 04:19:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-19 04:19:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-19 04:19:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-19 04:19:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-19 04:19:48,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-19 04:19:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-19 04:19:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 04:19:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-19 04:19:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-19 04:19:48,853 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2021-11-19 04:19:48,854 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2021-11-19 04:19:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2021-11-19 04:19:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure probe_19 [2021-11-19 04:19:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2021-11-19 04:19:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-19 04:19:48,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:19:48,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-19 04:19:48,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-19 04:19:48,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 04:19:48,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:19:48,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 04:19:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 04:19:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 04:19:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 04:19:48,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 04:19:49,436 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:19:49,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:19:49,939 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 04:19:50,455 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 04:19:50,851 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:19:50,877 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:19:50,880 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:19:50,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:19:50 BoogieIcfgContainer [2021-11-19 04:19:50,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:19:50,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:19:50,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:19:50,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:19:50,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:19:47" (1/3) ... [2021-11-19 04:19:50,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70489837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:19:50, skipping insertion in model container [2021-11-19 04:19:50,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:19:48" (2/3) ... [2021-11-19 04:19:50,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70489837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:19:50, skipping insertion in model container [2021-11-19 04:19:50,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:19:50" (3/3) ... [2021-11-19 04:19:50,901 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test19-1.i [2021-11-19 04:19:50,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:19:50,910 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2021-11-19 04:19:51,009 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:19:51,028 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 [2021-11-19 04:19:51,029 INFO L340 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2021-11-19 04:19:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-19 04:19:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 04:19:51,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:19:51,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:19:51,077 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting probe_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-11-19 04:19:51,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:19:51,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1164629906, now seen corresponding path program 1 times [2021-11-19 04:19:51,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:19:51,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051275744] [2021-11-19 04:19:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:19:51,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:19:51,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:19:51,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:19:51,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:19:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:19:51,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 04:19:51,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:19:51,433 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 [2021-11-19 04:19:51,586 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 04:19:51,586 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 16 treesize of output 21 [2021-11-19 04:19:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:19:51,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:19:51,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:19:51,916 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:19:51,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051275744] [2021-11-19 04:19:51,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051275744] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:19:51,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:19:51,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-11-19 04:19:51,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80378310] [2021-11-19 04:19:51,921 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:19:51,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:19:51,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:19:51,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:19:51,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:19:51,958 INFO L87 Difference]: Start difference. First operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:19:52,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:19:52,635 INFO L93 Difference]: Finished difference Result 138 states and 160 transitions. [2021-11-19 04:19:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:19:52,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2021-11-19 04:19:52,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:19:52,653 INFO L225 Difference]: With dead ends: 138 [2021-11-19 04:19:52,655 INFO L226 Difference]: Without dead ends: 135 [2021-11-19 04:19:52,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:19:52,668 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 116 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:19:52,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 491 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 240 Invalid, 0 Unknown, 60 Unchecked, 0.6s Time] [2021-11-19 04:19:52,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-19 04:19:52,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 97. [2021-11-19 04:19:52,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 54 states have (on average 1.6296296296296295) internal successors, (88), 77 states have internal predecessors, (88), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2021-11-19 04:19:52,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2021-11-19 04:19:52,765 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 15 [2021-11-19 04:19:52,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:19:52,767 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2021-11-19 04:19:52,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:19:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2021-11-19 04:19:52,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 04:19:52,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:19:52,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:19:52,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:19:52,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:19:52,986 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe_19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-11-19 04:19:52,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:19:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1164629905, now seen corresponding path program 1 times [2021-11-19 04:19:52,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:19:52,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072135482] [2021-11-19 04:19:52,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:19:52,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:19:52,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:19:52,992 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:19:53,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:19:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:19:53,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 04:19:53,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:19:53,240 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 [2021-11-19 04:19:53,249 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 [2021-11-19 04:19:55,592 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 04:19:55,593 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 25 treesize of output 27 [2021-11-19 04:19:55,609 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 04:19:55,609 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 19 treesize of output 19 [2021-11-19 04:19:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:19:55,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:20:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:09,023 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:20:09,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072135482] [2021-11-19 04:20:09,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072135482] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:09,024 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:09,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-19 04:20:09,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890963579] [2021-11-19 04:20:09,024 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:09,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 04:20:09,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:20:09,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 04:20:09,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=145, Unknown=4, NotChecked=0, Total=182 [2021-11-19 04:20:09,027 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:20:14,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:14,018 INFO L93 Difference]: Finished difference Result 142 states and 164 transitions. [2021-11-19 04:20:14,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:20:14,019 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2021-11-19 04:20:14,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:20:14,022 INFO L225 Difference]: With dead ends: 142 [2021-11-19 04:20:14,022 INFO L226 Difference]: Without dead ends: 142 [2021-11-19 04:20:14,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=50, Invalid=184, Unknown=6, NotChecked=0, Total=240 [2021-11-19 04:20:14,024 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 159 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 327 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 04:20:14,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 580 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 277 Invalid, 0 Unknown, 327 Unchecked, 0.8s Time] [2021-11-19 04:20:14,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-19 04:20:14,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 99. [2021-11-19 04:20:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 56 states have (on average 1.5892857142857142) internal successors, (89), 77 states have internal predecessors, (89), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-19 04:20:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 117 transitions. [2021-11-19 04:20:14,042 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 117 transitions. Word has length 15 [2021-11-19 04:20:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:20:14,042 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 117 transitions. [2021-11-19 04:20:14,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:20:14,043 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 117 transitions. [2021-11-19 04:20:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:20:14,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:20:14,045 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:14,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:14,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:20:14,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-11-19 04:20:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1030331904, now seen corresponding path program 1 times [2021-11-19 04:20:14,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:20:14,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861168246] [2021-11-19 04:20:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:14,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:20:14,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:20:14,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:20:14,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 04:20:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:14,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 04:20:14,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:14,704 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-19 04:20:14,704 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 [2021-11-19 04:20:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:14,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:20:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:15,050 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:20:15,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861168246] [2021-11-19 04:20:15,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861168246] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:15,051 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:15,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-11-19 04:20:15,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304323618] [2021-11-19 04:20:15,051 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:15,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:20:15,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:20:15,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:20:15,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:20:15,054 INFO L87 Difference]: Start difference. First operand 99 states and 117 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 04:20:15,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:15,621 INFO L93 Difference]: Finished difference Result 122 states and 143 transitions. [2021-11-19 04:20:15,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:20:15,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2021-11-19 04:20:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:20:15,624 INFO L225 Difference]: With dead ends: 122 [2021-11-19 04:20:15,631 INFO L226 Difference]: Without dead ends: 122 [2021-11-19 04:20:15,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 04:20:15,633 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 108 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:20:15,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 407 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 195 Invalid, 0 Unknown, 78 Unchecked, 0.5s Time] [2021-11-19 04:20:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-19 04:20:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 97. [2021-11-19 04:20:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 75 states have internal predecessors, (85), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-19 04:20:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 113 transitions. [2021-11-19 04:20:15,650 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 113 transitions. Word has length 26 [2021-11-19 04:20:15,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:20:15,651 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 113 transitions. [2021-11-19 04:20:15,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-19 04:20:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 113 transitions. [2021-11-19 04:20:15,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:20:15,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:20:15,653 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:15,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:15,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:20:15,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting f19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-11-19 04:20:15,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:15,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1030331903, now seen corresponding path program 1 times [2021-11-19 04:20:15,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:20:15,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898973153] [2021-11-19 04:20:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:15,873 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:20:15,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:20:15,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:20:15,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 04:20:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:16,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 04:20:16,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:16,129 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 [2021-11-19 04:20:18,604 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 04:20:18,605 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 37 treesize of output 39 [2021-11-19 04:20:18,645 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 04:20:18,645 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 31 treesize of output 31 [2021-11-19 04:20:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:18,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:20:43,920 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-19 04:20:43,921 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 44 treesize of output 43 [2021-11-19 04:20:44,440 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 86 treesize of output 82 [2021-11-19 04:20:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:49,433 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:20:49,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898973153] [2021-11-19 04:20:49,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898973153] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:49,434 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:49,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 20 [2021-11-19 04:20:49,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123880754] [2021-11-19 04:20:49,434 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:49,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-19 04:20:49,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:20:49,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-19 04:20:49,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=354, Unknown=11, NotChecked=0, Total=420 [2021-11-19 04:20:49,437 INFO L87 Difference]: Start difference. First operand 97 states and 113 transitions. Second operand has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-19 04:21:02,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:02,837 INFO L93 Difference]: Finished difference Result 138 states and 164 transitions. [2021-11-19 04:21:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 04:21:02,839 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2021-11-19 04:21:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:21:02,841 INFO L225 Difference]: With dead ends: 138 [2021-11-19 04:21:02,841 INFO L226 Difference]: Without dead ends: 138 [2021-11-19 04:21:02,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 40.8s TimeCoverageRelationStatistics Valid=101, Invalid=533, Unknown=16, NotChecked=0, Total=650 [2021-11-19 04:21:02,843 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 125 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 394 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:21:02,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 937 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 340 Invalid, 0 Unknown, 394 Unchecked, 1.0s Time] [2021-11-19 04:21:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-19 04:21:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 95. [2021-11-19 04:21:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 73 states have internal predecessors, (81), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-19 04:21:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2021-11-19 04:21:02,859 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 26 [2021-11-19 04:21:02,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:21:02,859 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2021-11-19 04:21:02,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-19 04:21:02,860 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2021-11-19 04:21:02,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:21:02,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:21:02,874 INFO L514 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, 1, 1, 1] [2021-11-19 04:21:02,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:03,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:21:03,080 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-11-19 04:21:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash 895813422, now seen corresponding path program 1 times [2021-11-19 04:21:03,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:21:03,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286489558] [2021-11-19 04:21:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:03,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:21:03,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:21:03,083 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:21:03,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 04:21:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:03,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:21:03,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:03,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-19 04:21:03,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-11-19 04:21:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:03,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:03,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:21:03,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286489558] [2021-11-19 04:21:03,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286489558] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:21:03,508 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:21:03,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 04:21:03,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221154457] [2021-11-19 04:21:03,508 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:21:03,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:21:03,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:21:03,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:21:03,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:21:03,510 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:21:03,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:03,669 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2021-11-19 04:21:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:21:03,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-11-19 04:21:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:21:03,672 INFO L225 Difference]: With dead ends: 100 [2021-11-19 04:21:03,673 INFO L226 Difference]: Without dead ends: 100 [2021-11-19 04:21:03,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:21:03,674 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 2 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:21:03,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 411 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:21:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-19 04:21:03,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2021-11-19 04:21:03,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 76 states have internal predecessors, (85), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (15), 15 states have call predecessors, (15), 12 states have call successors, (15) [2021-11-19 04:21:03,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2021-11-19 04:21:03,686 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 26 [2021-11-19 04:21:03,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:21:03,687 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2021-11-19 04:21:03,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:21:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2021-11-19 04:21:03,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:21:03,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:21:03,689 INFO L514 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, 1, 1, 1] [2021-11-19 04:21:03,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:03,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:21:03,903 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-11-19 04:21:03,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:03,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1891602065, now seen corresponding path program 1 times [2021-11-19 04:21:03,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:21:03,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697508564] [2021-11-19 04:21:03,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:03,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:21:03,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:21:03,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:21:03,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 04:21:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:04,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:21:04,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:04,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:04,348 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:21:04,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697508564] [2021-11-19 04:21:04,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697508564] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:21:04,348 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:21:04,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 04:21:04,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695343306] [2021-11-19 04:21:04,348 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:21:04,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:21:04,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:21:04,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:21:04,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:21:04,350 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 04:21:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:04,439 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2021-11-19 04:21:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:21:04,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 26 [2021-11-19 04:21:04,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:21:04,446 INFO L225 Difference]: With dead ends: 114 [2021-11-19 04:21:04,446 INFO L226 Difference]: Without dead ends: 114 [2021-11-19 04:21:04,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:21:04,448 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 20 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:21:04,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 633 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:21:04,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-19 04:21:04,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 103. [2021-11-19 04:21:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 79 states have internal predecessors, (88), 13 states have call successors, (13), 9 states have call predecessors, (13), 11 states have return successors, (16), 16 states have call predecessors, (16), 12 states have call successors, (16) [2021-11-19 04:21:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2021-11-19 04:21:04,485 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 26 [2021-11-19 04:21:04,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:21:04,486 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2021-11-19 04:21:04,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 04:21:04,486 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2021-11-19 04:21:04,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 04:21:04,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:21:04,488 INFO L514 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, 1, 1, 1, 1] [2021-11-19 04:21:04,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:04,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:21:04,708 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-11-19 04:21:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:04,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1490464698, now seen corresponding path program 1 times [2021-11-19 04:21:04,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:21:04,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660041985] [2021-11-19 04:21:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:04,709 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:21:04,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:21:04,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:21:04,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 04:21:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:04,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 04:21:04,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:05,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:09,262 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_4| |c_#valid|) (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))))) is different from false [2021-11-19 04:21:09,343 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))) (= |v_old(#valid)_BEFORE_CALL_4| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))))) is different from false [2021-11-19 04:21:09,581 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:21:09,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660041985] [2021-11-19 04:21:09,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-11-19 04:21:09,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1799180814] [2021-11-19 04:21:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:09,582 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 04:21:09,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/cvc4 [2021-11-19 04:21:09,589 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-19 04:21:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:09,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 04:21:09,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:09,946 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-11-19 04:21:09,946 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 12 treesize of output 21 [2021-11-19 04:21:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:14,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:18,514 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_9| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_9| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|)))))) (= |v_old(#valid)_BEFORE_CALL_9| |c_#valid|))) is different from false [2021-11-19 04:21:18,703 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_9| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_9| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|)))))) (= |v_old(#valid)_BEFORE_CALL_9| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))))) is different from false [2021-11-19 04:21:18,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_prenex_7)=(= (select v_prenex_7 v_antiDerIndex_entry0_2) (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_antiDerIndex_entry0_2))} [2021-11-19 04:21:18,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641244930] [2021-11-19 04:21:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:18,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:21:18,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:18,927 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:21:18,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 04:21:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:19,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 04:21:19,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:19,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:29,610 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| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))) (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))))) is different from false [2021-11-19 04:21:29,941 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-11-19 04:21:29,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 58 treesize of output 105 [2021-11-19 04:21:30,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_~#a19~0.base_BEFORE_CALL_8| (_ bv0 1)) v_prenex_9))=(not (= (select v_prenex_9 v_antiDerIndex_entry0_4) (select (store |old(#valid)| |v_entry_point_~#a19~0.base_BEFORE_CALL_8| (_ bv0 1)) v_antiDerIndex_entry0_4)))} [2021-11-19 04:21:30,458 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:21:30,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 04:21:30,458 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-19 04:21:30,458 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 04:21:30,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (93 of 94 remaining) [2021-11-19 04:21:30,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr0REQUIRES_VIOLATION (92 of 94 remaining) [2021-11-19 04:21:30,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr1REQUIRES_VIOLATION (91 of 94 remaining) [2021-11-19 04:21:30,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE (90 of 94 remaining) [2021-11-19 04:21:30,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (89 of 94 remaining) [2021-11-19 04:21:30,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE (88 of 94 remaining) [2021-11-19 04:21:30,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err0REQUIRES_VIOLATION (87 of 94 remaining) [2021-11-19 04:21:30,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err1REQUIRES_VIOLATION (86 of 94 remaining) [2021-11-19 04:21:30,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err2REQUIRES_VIOLATION (85 of 94 remaining) [2021-11-19 04:21:30,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err3REQUIRES_VIOLATION (84 of 94 remaining) [2021-11-19 04:21:30,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION (83 of 94 remaining) [2021-11-19 04:21:30,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION (82 of 94 remaining) [2021-11-19 04:21:30,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err0REQUIRES_VIOLATION (81 of 94 remaining) [2021-11-19 04:21:30,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err1REQUIRES_VIOLATION (80 of 94 remaining) [2021-11-19 04:21:30,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err2REQUIRES_VIOLATION (79 of 94 remaining) [2021-11-19 04:21:30,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err3REQUIRES_VIOLATION (78 of 94 remaining) [2021-11-19 04:21:30,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err4REQUIRES_VIOLATION (77 of 94 remaining) [2021-11-19 04:21:30,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err5REQUIRES_VIOLATION (76 of 94 remaining) [2021-11-19 04:21:30,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err6ASSERT_VIOLATIONMEMORY_FREE (75 of 94 remaining) [2021-11-19 04:21:30,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err7ASSERT_VIOLATIONMEMORY_FREE (74 of 94 remaining) [2021-11-19 04:21:30,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_19Err8ASSERT_VIOLATIONMEMORY_FREE (73 of 94 remaining) [2021-11-19 04:21:30,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION (72 of 94 remaining) [2021-11-19 04:21:30,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION (71 of 94 remaining) [2021-11-19 04:21:30,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err0REQUIRES_VIOLATION (70 of 94 remaining) [2021-11-19 04:21:30,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err1REQUIRES_VIOLATION (69 of 94 remaining) [2021-11-19 04:21:30,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE (68 of 94 remaining) [2021-11-19 04:21:30,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE (67 of 94 remaining) [2021-11-19 04:21:30,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE (66 of 94 remaining) [2021-11-19 04:21:30,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION (65 of 94 remaining) [2021-11-19 04:21:30,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION (64 of 94 remaining) [2021-11-19 04:21:30,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION (63 of 94 remaining) [2021-11-19 04:21:30,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION (62 of 94 remaining) [2021-11-19 04:21:30,476 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION (61 of 94 remaining) [2021-11-19 04:21:30,476 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION (60 of 94 remaining) [2021-11-19 04:21:30,476 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION (59 of 94 remaining) [2021-11-19 04:21:30,476 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION (58 of 94 remaining) [2021-11-19 04:21:30,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION (57 of 94 remaining) [2021-11-19 04:21:30,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION (56 of 94 remaining) [2021-11-19 04:21:30,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION (55 of 94 remaining) [2021-11-19 04:21:30,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION (54 of 94 remaining) [2021-11-19 04:21:30,477 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION (53 of 94 remaining) [2021-11-19 04:21:30,478 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION (52 of 94 remaining) [2021-11-19 04:21:30,478 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION (51 of 94 remaining) [2021-11-19 04:21:30,478 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION (50 of 94 remaining) [2021-11-19 04:21:30,478 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION (49 of 94 remaining) [2021-11-19 04:21:30,479 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION (48 of 94 remaining) [2021-11-19 04:21:30,479 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION (47 of 94 remaining) [2021-11-19 04:21:30,479 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION (46 of 94 remaining) [2021-11-19 04:21:30,479 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION (45 of 94 remaining) [2021-11-19 04:21:30,479 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION (44 of 94 remaining) [2021-11-19 04:21:30,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION (43 of 94 remaining) [2021-11-19 04:21:30,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION (42 of 94 remaining) [2021-11-19 04:21:30,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION (41 of 94 remaining) [2021-11-19 04:21:30,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION (40 of 94 remaining) [2021-11-19 04:21:30,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION (39 of 94 remaining) [2021-11-19 04:21:30,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION (38 of 94 remaining) [2021-11-19 04:21:30,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION (37 of 94 remaining) [2021-11-19 04:21:30,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION (36 of 94 remaining) [2021-11-19 04:21:30,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION (35 of 94 remaining) [2021-11-19 04:21:30,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION (34 of 94 remaining) [2021-11-19 04:21:30,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION (33 of 94 remaining) [2021-11-19 04:21:30,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION (32 of 94 remaining) [2021-11-19 04:21:30,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION (31 of 94 remaining) [2021-11-19 04:21:30,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION (30 of 94 remaining) [2021-11-19 04:21:30,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION (29 of 94 remaining) [2021-11-19 04:21:30,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION (28 of 94 remaining) [2021-11-19 04:21:30,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE (27 of 94 remaining) [2021-11-19 04:21:30,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE (26 of 94 remaining) [2021-11-19 04:21:30,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE (25 of 94 remaining) [2021-11-19 04:21:30,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE (24 of 94 remaining) [2021-11-19 04:21:30,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE (23 of 94 remaining) [2021-11-19 04:21:30,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE (22 of 94 remaining) [2021-11-19 04:21:30,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION (21 of 94 remaining) [2021-11-19 04:21:30,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION (20 of 94 remaining) [2021-11-19 04:21:30,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION (19 of 94 remaining) [2021-11-19 04:21:30,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION (18 of 94 remaining) [2021-11-19 04:21:30,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION (17 of 94 remaining) [2021-11-19 04:21:30,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION (16 of 94 remaining) [2021-11-19 04:21:30,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION (15 of 94 remaining) [2021-11-19 04:21:30,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION (14 of 94 remaining) [2021-11-19 04:21:30,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE (13 of 94 remaining) [2021-11-19 04:21:30,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE (12 of 94 remaining) [2021-11-19 04:21:30,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 94 remaining) [2021-11-19 04:21:30,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 94 remaining) [2021-11-19 04:21:30,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 94 remaining) [2021-11-19 04:21:30,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE (8 of 94 remaining) [2021-11-19 04:21:30,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION (7 of 94 remaining) [2021-11-19 04:21:30,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION (6 of 94 remaining) [2021-11-19 04:21:30,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION (5 of 94 remaining) [2021-11-19 04:21:30,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION (4 of 94 remaining) [2021-11-19 04:21:30,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION (3 of 94 remaining) [2021-11-19 04:21:30,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION (2 of 94 remaining) [2021-11-19 04:21:30,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION (1 of 94 remaining) [2021-11-19 04:21:30,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION (0 of 94 remaining) [2021-11-19 04:21:30,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:30,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:30,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:31,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/cvc4 --incremental --print-success --lang smt [2021-11-19 04:21:31,117 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:21:31,120 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:21:31,124 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-19 04:21:31,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:21:31 BoogieIcfgContainer [2021-11-19 04:21:31,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:21:31,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:21:31,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:21:31,135 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:21:31,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:19:50" (3/4) ... [2021-11-19 04:21:31,139 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:21:31,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:21:31,140 INFO L158 Benchmark]: Toolchain (without parser) took 103595.70ms. Allocated memory was 69.2MB in the beginning and 127.9MB in the end (delta: 58.7MB). Free memory was 48.8MB in the beginning and 35.9MB in the end (delta: 12.9MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2021-11-19 04:21:31,141 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:21:31,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 977.52ms. Allocated memory is still 69.2MB. Free memory was 48.6MB in the beginning and 32.4MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 04:21:31,142 INFO L158 Benchmark]: Boogie Preprocessor took 181.99ms. Allocated memory is still 69.2MB. Free memory was 32.4MB in the beginning and 49.7MB in the end (delta: -17.3MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-11-19 04:21:31,142 INFO L158 Benchmark]: RCFGBuilder took 2162.65ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 49.7MB in the beginning and 45.4MB in the end (delta: 4.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2021-11-19 04:21:31,143 INFO L158 Benchmark]: TraceAbstraction took 100242.95ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 45.0MB in the beginning and 35.9MB in the end (delta: 9.1MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2021-11-19 04:21:31,143 INFO L158 Benchmark]: Witness Printer took 5.25ms. Allocated memory is still 127.9MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:21:31,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 977.52ms. Allocated memory is still 69.2MB. Free memory was 48.6MB in the beginning and 32.4MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 181.99ms. Allocated memory is still 69.2MB. Free memory was 32.4MB in the beginning and 49.7MB in the end (delta: -17.3MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2162.65ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 49.7MB in the beginning and 45.4MB in the end (delta: 4.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * TraceAbstraction took 100242.95ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 45.0MB in the beginning and 35.9MB in the end (delta: 9.1MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Witness Printer took 5.25ms. Allocated memory is still 127.9MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 804]: 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 804. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L805] CALL entry_point() [L798] struct A19 a19; [L799] CALL, EXPR probe_19(&a19) [L774] int ret = - -3; [L775] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(int)) [L775] a->q = (int *)ldv_malloc(sizeof(int)) [L776] EXPR a->q [L776] COND TRUE !a->q [L791] return ret; [L799] RET, EXPR probe_19(&a19) [L799] int ret = probe_19(&a19); [L800] COND FALSE !(ret==0) [L805] RET entry_point() - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: 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: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that free always succeeds Unable to prove that free 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: 794]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that free always succeeds Unable to prove that free 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 52 procedures, 401 locations, 94 error locations. Started 1 CEGAR loops. OverallTime: 100.1s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 540 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 530 mSDsluCounter, 3459 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 859 IncrementalHoareTripleChecker+Unchecked, 2870 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1113 IncrementalHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 589 mSDtfsCounter, 1113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 201 SyntacticMatches, 12 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 57.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 161 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 55.6s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 282 ConstructedInterpolants, 37 QuantifiedInterpolants, 1891 SizeOfPredicates, 32 NumberOfNonLiveVariables, 818 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 16/16 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 [2021-11-19 04:21:31,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee8e7ab-f669-4eff-b089-fec6ac458cae/bin/uautomizer-ZXIjhQolGL/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