./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:53:32,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:53:32,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:53:32,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:53:32,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:53:32,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:53:32,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:53:32,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:53:32,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:53:32,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:53:32,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:53:32,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:53:32,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:53:32,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:53:32,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:53:32,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:53:32,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:53:32,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:53:32,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:53:32,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:53:32,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:53:32,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:53:32,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:53:32,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:53:32,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:53:32,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:53:32,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:53:32,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:53:32,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:53:32,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:53:32,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:53:32,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:53:32,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:53:32,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:53:32,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:53:32,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:53:32,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:53:32,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:53:32,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:53:32,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:53:32,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:53:32,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:53:33,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:53:33,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:53:33,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:53:33,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:53:33,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:53:33,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:53:33,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:53:33,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:53:33,035 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:53:33,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:53:33,036 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:53:33,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:53:33,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:53:33,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:53:33,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:53:33,038 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:53:33,038 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:53:33,038 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:53:33,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:53:33,039 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:53:33,039 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:53:33,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:53:33,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:53:33,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:53:33,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:53:33,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:33,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:53:33,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:53:33,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:53:33,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:53:33,041 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_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-18 20:53:33,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:53:33,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:53:33,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:53:33,405 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:53:33,406 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:53:33,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-18 20:53:33,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/66d0300c2/64c26d493bda4d608063c3d6b3df851f/FLAGa2bd1a052 [2022-11-18 20:53:34,106 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:53:34,106 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-18 20:53:34,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/66d0300c2/64c26d493bda4d608063c3d6b3df851f/FLAGa2bd1a052 [2022-11-18 20:53:34,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/66d0300c2/64c26d493bda4d608063c3d6b3df851f [2022-11-18 20:53:34,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:53:34,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:53:34,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:34,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:53:34,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:53:34,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:34" (1/1) ... [2022-11-18 20:53:34,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727f81f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:34, skipping insertion in model container [2022-11-18 20:53:34,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:34" (1/1) ... [2022-11-18 20:53:34,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:53:34,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:53:35,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:35,102 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-18 20:53:35,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b8dbdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:35, skipping insertion in model container [2022-11-18 20:53:35,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:35,103 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-18 20:53:35,105 INFO L158 Benchmark]: Toolchain (without parser) took 763.57ms. Allocated memory is still 134.2MB. Free memory was 91.3MB in the beginning and 103.0MB in the end (delta: -11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:53:35,105 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 110.0MB in the beginning and 110.0MB in the end (delta: 53.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:53:35,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.69ms. Allocated memory is still 134.2MB. Free memory was 91.1MB in the beginning and 103.0MB in the end (delta: -11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:53:35,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory was 110.0MB in the beginning and 110.0MB in the end (delta: 53.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.69ms. Allocated memory is still 134.2MB. Free memory was 91.1MB in the beginning and 103.0MB in the end (delta: -11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1233]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:53:37,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:53:37,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:53:37,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:53:37,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:53:37,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:53:37,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:53:37,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:53:37,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:53:37,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:53:37,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:53:37,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:53:37,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:53:37,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:53:37,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:53:37,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:53:37,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:53:37,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:53:37,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:53:37,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:53:37,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:53:37,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:53:37,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:53:37,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:53:37,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:53:37,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:53:37,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:53:37,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:53:37,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:53:37,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:53:37,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:53:37,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:53:37,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:53:37,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:53:37,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:53:37,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:53:37,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:53:37,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:53:37,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:53:37,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:53:37,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:53:37,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 20:53:37,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:53:37,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:53:37,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:53:37,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:53:37,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:53:37,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:53:37,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:53:37,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:53:37,486 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:53:37,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:53:37,488 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:53:37,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:53:37,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:53:37,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:53:37,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:53:37,489 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:53:37,489 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:53:37,489 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:53:37,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:53:37,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:53:37,490 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:53:37,490 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:53:37,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:53:37,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:53:37,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:53:37,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:53:37,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:53:37,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:37,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:53:37,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:53:37,492 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:53:37,492 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:53:37,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:53:37,493 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_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-18 20:53:37,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:53:37,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:53:37,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:53:37,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:53:37,952 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:53:37,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-18 20:53:38,028 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/df75390a8/59a3986ca8dc4c3c917076b1f54f08e0/FLAG34eaab85f [2022-11-18 20:53:38,631 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:53:38,633 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-18 20:53:38,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/df75390a8/59a3986ca8dc4c3c917076b1f54f08e0/FLAG34eaab85f [2022-11-18 20:53:38,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/data/df75390a8/59a3986ca8dc4c3c917076b1f54f08e0 [2022-11-18 20:53:38,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:53:38,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:53:38,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:38,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:53:38,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:53:38,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:38" (1/1) ... [2022-11-18 20:53:38,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ad0071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:38, skipping insertion in model container [2022-11-18 20:53:38,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:53:38" (1/1) ... [2022-11-18 20:53:38,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:53:38,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:53:39,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:39,845 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 20:53:39,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:53:39,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:39,930 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:53:39,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:53:40,088 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:53:40,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40 WrapperNode [2022-11-18 20:53:40,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:53:40,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:40,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:53:40,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:53:40,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,173 INFO L138 Inliner]: procedures = 366, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-11-18 20:53:40,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:53:40,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:53:40,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:53:40,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:53:40,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,226 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:53:40,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:53:40,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:53:40,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:53:40,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (1/1) ... [2022-11-18 20:53:40,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:53:40,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:53:40,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:53:40,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:53:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 20:53:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:53:40,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:53:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 20:53:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:53:40,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:53:40,361 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:53:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:53:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:53:40,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:53:40,365 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:53:40,531 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:53:40,533 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:53:40,879 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:53:40,886 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:53:40,886 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:53:40,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:40 BoogieIcfgContainer [2022-11-18 20:53:40,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:53:40,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:53:40,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:53:40,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:53:40,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:53:38" (1/3) ... [2022-11-18 20:53:40,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4a6ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:40, skipping insertion in model container [2022-11-18 20:53:40,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:53:40" (2/3) ... [2022-11-18 20:53:40,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4a6ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:53:40, skipping insertion in model container [2022-11-18 20:53:40,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:40" (3/3) ... [2022-11-18 20:53:40,897 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-11-18 20:53:40,916 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:53:40,917 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-18 20:53:40,917 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:53:41,039 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:53:41,073 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:53:41,088 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 169 flow [2022-11-18 20:53:41,091 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 169 flow [2022-11-18 20:53:41,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 169 flow [2022-11-18 20:53:41,136 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-11-18 20:53:41,137 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:53:41,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 0/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-18 20:53:41,142 INFO L119 LiptonReduction]: Number of co-enabled transitions 1218 [2022-11-18 20:53:52,462 INFO L134 LiptonReduction]: Checked pairs total: 2515 [2022-11-18 20:53:52,463 INFO L136 LiptonReduction]: Total number of compositions: 96 [2022-11-18 20:53:52,473 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 25 transitions, 55 flow [2022-11-18 20:53:52,506 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 103 states, 70 states have (on average 2.5714285714285716) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:53:52,540 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34bb2148, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:53:52,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-18 20:53:52,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 70 states have (on average 2.5714285714285716) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:53:52,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:52,550 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:53:52,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:53:52,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:52,560 INFO L85 PathProgramCache]: Analyzing trace with hash 311, now seen corresponding path program 1 times [2022-11-18 20:53:52,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:52,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218522972] [2022-11-18 20:53:52,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:52,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:52,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:52,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:52,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:53:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:52,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:53:52,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:52,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:52,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:52,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218522972] [2022-11-18 20:53:52,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218522972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:52,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:52,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:53:52,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815756827] [2022-11-18 20:53:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:52,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:53:52,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:52,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:53:52,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:53:52,719 INFO L87 Difference]: Start difference. First operand has 103 states, 70 states have (on average 2.5714285714285716) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:52,841 INFO L93 Difference]: Finished difference Result 72 states and 125 transitions. [2022-11-18 20:53:52,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:53:52,843 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 20:53:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:52,852 INFO L225 Difference]: With dead ends: 72 [2022-11-18 20:53:52,867 INFO L226 Difference]: Without dead ends: 72 [2022-11-18 20:53:52,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:53:52,871 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:52,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:53:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-18 20:53:52,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-18 20:53:52,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 57 states have (on average 2.192982456140351) internal successors, (125), 71 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 125 transitions. [2022-11-18 20:53:52,936 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 125 transitions. Word has length 1 [2022-11-18 20:53:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:52,939 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 125 transitions. [2022-11-18 20:53:52,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:52,941 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 125 transitions. [2022-11-18 20:53:52,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:53:52,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:52,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:53:52,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:53,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:53,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:53:53,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:53,148 INFO L85 PathProgramCache]: Analyzing trace with hash 307887, now seen corresponding path program 1 times [2022-11-18 20:53:53,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:53,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410572508] [2022-11-18 20:53:53,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:53,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:53,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:53,151 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:53,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:53:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:53:53,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:53,346 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:53:53,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-18 20:53:53,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:53,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:53,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:53,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410572508] [2022-11-18 20:53:53,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410572508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:53,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:53,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:53:53,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24757009] [2022-11-18 20:53:53,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:53,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:53,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:53,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:53,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:53,404 INFO L87 Difference]: Start difference. First operand 72 states and 125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:53,484 INFO L93 Difference]: Finished difference Result 56 states and 95 transitions. [2022-11-18 20:53:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:53,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 20:53:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:53,486 INFO L225 Difference]: With dead ends: 56 [2022-11-18 20:53:53,486 INFO L226 Difference]: Without dead ends: 56 [2022-11-18 20:53:53,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:53,488 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:53,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:53:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-18 20:53:53,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-18 20:53:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.9791666666666667) internal successors, (95), 55 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 95 transitions. [2022-11-18 20:53:53,495 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 95 transitions. Word has length 3 [2022-11-18 20:53:53,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:53,496 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 95 transitions. [2022-11-18 20:53:53,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 95 transitions. [2022-11-18 20:53:53,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:53:53,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:53,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:53:53,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:53,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:53,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:53:53,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:53,710 INFO L85 PathProgramCache]: Analyzing trace with hash 307889, now seen corresponding path program 1 times [2022-11-18 20:53:53,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:53,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696867522] [2022-11-18 20:53:53,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:53,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:53,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:53,712 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:53,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:53:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:53,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:53:53,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:53,834 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-18 20:53:53,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-11-18 20:53:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:53,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:53,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:53,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696867522] [2022-11-18 20:53:53,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696867522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:53,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:53,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:53:53,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267850708] [2022-11-18 20:53:53,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:53,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:53:53,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:53:53,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:53,853 INFO L87 Difference]: Start difference. First operand 56 states and 95 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:53,960 INFO L93 Difference]: Finished difference Result 49 states and 82 transitions. [2022-11-18 20:53:53,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:53:53,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 20:53:53,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:53,962 INFO L225 Difference]: With dead ends: 49 [2022-11-18 20:53:53,962 INFO L226 Difference]: Without dead ends: 49 [2022-11-18 20:53:53,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:53:53,964 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:53,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:53:53,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-18 20:53:53,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-18 20:53:53,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 48 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 82 transitions. [2022-11-18 20:53:53,970 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 82 transitions. Word has length 3 [2022-11-18 20:53:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:53,971 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 82 transitions. [2022-11-18 20:53:53,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:53,971 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 82 transitions. [2022-11-18 20:53:53,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:53:53,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:53,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:53:53,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:54,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:54,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:53:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:54,184 INFO L85 PathProgramCache]: Analyzing trace with hash 9544549, now seen corresponding path program 1 times [2022-11-18 20:53:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:54,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381302068] [2022-11-18 20:53:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:54,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:54,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:54,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:54,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:53:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:54,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:53:54,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:54,318 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-18 20:53:54,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-11-18 20:53:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:54,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:54,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:54,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381302068] [2022-11-18 20:53:54,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381302068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:54,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:54,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:54,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699317576] [2022-11-18 20:53:54,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:54,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:53:54,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:54,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:53:54,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:54,359 INFO L87 Difference]: Start difference. First operand 49 states and 82 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:54,492 INFO L93 Difference]: Finished difference Result 43 states and 62 transitions. [2022-11-18 20:53:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:54,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-18 20:53:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:54,494 INFO L225 Difference]: With dead ends: 43 [2022-11-18 20:53:54,494 INFO L226 Difference]: Without dead ends: 42 [2022-11-18 20:53:54,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:53:54,495 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:54,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:53:54,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-18 20:53:54,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-11-18 20:53:54,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 39 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 60 transitions. [2022-11-18 20:53:54,501 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 60 transitions. Word has length 4 [2022-11-18 20:53:54,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:54,501 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 60 transitions. [2022-11-18 20:53:54,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:54,502 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 60 transitions. [2022-11-18 20:53:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 20:53:54,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:54,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:54,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-18 20:53:54,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:54,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:53:54,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:54,720 INFO L85 PathProgramCache]: Analyzing trace with hash 876796665, now seen corresponding path program 1 times [2022-11-18 20:53:54,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:54,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226287291] [2022-11-18 20:53:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:54,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:54,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:54,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:53:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:53:54,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:53:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:53:55,037 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:53:55,037 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:53:55,038 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (17 of 18 remaining) [2022-11-18 20:53:55,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2022-11-18 20:53:55,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-11-18 20:53:55,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-11-18 20:53:55,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-11-18 20:53:55,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-11-18 20:53:55,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2022-11-18 20:53:55,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2022-11-18 20:53:55,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2022-11-18 20:53:55,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-18 20:53:55,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2022-11-18 20:53:55,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-11-18 20:53:55,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-11-18 20:53:55,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-11-18 20:53:55,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-11-18 20:53:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-11-18 20:53:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-11-18 20:53:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-11-18 20:53:55,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:55,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:55,246 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:53:55,252 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:53:55,252 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:53:55,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:53:55 BasicIcfg [2022-11-18 20:53:55,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:53:55,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:53:55,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:53:55,278 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:53:55,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:53:40" (3/4) ... [2022-11-18 20:53:55,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:53:55,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:53:55,284 INFO L158 Benchmark]: Toolchain (without parser) took 16402.38ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 36.6MB in the beginning and 64.8MB in the end (delta: -28.1MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-11-18 20:53:55,284 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 42.3MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:53:55,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1205.51ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 36.4MB in the beginning and 42.7MB in the end (delta: -6.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-11-18 20:53:55,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.24ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:53:55,285 INFO L158 Benchmark]: Boogie Preprocessor took 67.25ms. Allocated memory is still 77.6MB. Free memory was 39.9MB in the beginning and 38.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:53:55,286 INFO L158 Benchmark]: RCFGBuilder took 646.75ms. Allocated memory is still 77.6MB. Free memory was 38.1MB in the beginning and 42.5MB in the end (delta: -4.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-18 20:53:55,286 INFO L158 Benchmark]: TraceAbstraction took 14386.52ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 41.9MB in the beginning and 65.8MB in the end (delta: -24.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-18 20:53:55,287 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 113.2MB. Free memory was 65.8MB in the beginning and 64.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:53:55,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 42.3MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1205.51ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 36.4MB in the beginning and 42.7MB in the end (delta: -6.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.24ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.25ms. Allocated memory is still 77.6MB. Free memory was 39.9MB in the beginning and 38.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 646.75ms. Allocated memory is still 77.6MB. Free memory was 38.1MB in the beginning and 42.5MB in the end (delta: -4.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14386.52ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 41.9MB in the beginning and 65.8MB in the end (delta: -24.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 113.2MB. Free memory was 65.8MB in the beginning and 64.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4s, 86 PlacesBefore, 29 PlacesAfterwards, 82 TransitionsBefore, 25 TransitionsAfterwards, 1218 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 96 TotalNumberOfCompositions, 2515 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1582, independent: 1440, independent conditional: 0, independent unconditional: 1440, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 855, independent: 824, independent conditional: 0, independent unconditional: 824, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 855, independent: 815, independent conditional: 0, independent unconditional: 815, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 485, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 429, dependent conditional: 0, dependent unconditional: 429, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1582, independent: 616, independent conditional: 0, independent unconditional: 616, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 855, unknown conditional: 0, unknown unconditional: 855] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 1242]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1242. Possible FailurePath: [L1223-L1227] 0 struct s { int datum; pthread_mutex_t mutex; int list; } *A; [L1243] 0 pthread_t t1; [L1244] 0 A = malloc(sizeof(struct s)) [L1245] CALL 0 init(A,666) [L1229] 0 p->datum = x [L1245] RET 0 init(A,666) [L1246] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={1:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=0, t1={4:0}] [L1247] CALL 0 update(&A->list) [L1233] 0 struct s *s = ((struct s *)((char *)(p)-(unsigned long)(&((struct s *)0)->list))); [L1235] EXPR 0 s->datum VAL [A={1:0}, p={1:28}, p={1:28}, s={1:0}, s->datum=666] [L1235] 0 s->datum++ [L1247] RET 0 update(&A->list) [L1248] 0 return 0; [L1248] 0 return 0; - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 6 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:53:55,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99b037-6073-4c18-b364-b685a52bcb9c/bin/uautomizer-TMbwUNV5ro/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: Overapproximated counterexample