./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 2329fc70 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_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 22:31:36,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:31:36,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:31:36,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:31:36,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:31:36,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:31:36,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:31:36,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:31:36,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:31:36,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:31:36,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:31:36,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:31:36,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:31:36,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:31:36,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:31:36,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:31:36,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:31:36,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:31:36,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:31:36,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:31:36,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:31:36,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:31:36,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:31:36,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:31:36,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:31:36,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:31:36,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:31:36,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:31:36,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:31:36,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:31:36,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:31:36,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:31:36,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:31:36,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:31:36,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:31:36,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:31:36,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:31:36,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:31:36,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:31:36,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:31:36,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:31:36,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 22:31:37,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:31:37,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:31:37,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:31:37,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:31:37,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:31:37,002 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:31:37,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:31:37,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:31:37,003 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:31:37,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:31:37,004 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:31:37,004 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:31:37,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:31:37,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:31:37,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:31:37,004 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 22:31:37,005 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 22:31:37,005 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 22:31:37,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:31:37,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:31:37,005 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:31:37,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:31:37,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:31:37,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:31:37,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:31:37,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:31:37,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:31:37,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:31:37,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:31:37,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:31:37,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:31:37,007 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:31:37,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:31:37,007 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:31:37,007 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-12-13 22:31:37,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:31:37,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:31:37,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:31:37,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:31:37,205 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:31:37,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-13 22:31:39,762 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:31:39,947 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:31:39,948 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-13 22:31:39,957 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data/2078664db/0f61e165698f46039c00e16940b8633f/FLAG4390419b0 [2022-12-13 22:31:39,968 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data/2078664db/0f61e165698f46039c00e16940b8633f [2022-12-13 22:31:39,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:31:39,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:31:39,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:31:39,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:31:39,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:31:39,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:31:39" (1/1) ... [2022-12-13 22:31:39,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e11d840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:39, skipping insertion in model container [2022-12-13 22:31:39,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:31:39" (1/1) ... [2022-12-13 22:31:39,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:31:40,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:31:40,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:31:40,379 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) [2022-12-13 22:31:40,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@348ec12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:40, skipping insertion in model container [2022-12-13 22:31:40,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:31:40,380 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 22:31:40,381 INFO L158 Benchmark]: Toolchain (without parser) took 409.72ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 80.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 22:31:40,382 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 138.4MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:31:40,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.14ms. Allocated memory is still 138.4MB. Free memory was 94.7MB in the beginning and 80.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 22:31:40,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 138.4MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.14ms. Allocated memory is still 138.4MB. Free memory was 94.7MB in the beginning and 80.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 22:31:41,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:31:41,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:31:41,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:31:41,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:31:41,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:31:41,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:31:41,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:31:41,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:31:41,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:31:41,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:31:41,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:31:41,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:31:41,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:31:41,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:31:41,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:31:41,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:31:41,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:31:41,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:31:41,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:31:41,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:31:41,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:31:41,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:31:41,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:31:41,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:31:41,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:31:41,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:31:41,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:31:41,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:31:41,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:31:41,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:31:41,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:31:41,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:31:41,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:31:41,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:31:41,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:31:41,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:31:41,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:31:41,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:31:41,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:31:41,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:31:41,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 22:31:41,837 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:31:41,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:31:41,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:31:41,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:31:41,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:31:41,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:31:41,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:31:41,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:31:41,839 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:31:41,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:31:41,839 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:31:41,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:31:41,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:31:41,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:31:41,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:31:41,840 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 22:31:41,840 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 22:31:41,840 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 22:31:41,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:31:41,841 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:31:41,841 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 22:31:41,841 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 22:31:41,841 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:31:41,841 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:31:41,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:31:41,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:31:41,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:31:41,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:31:41,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:31:41,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:31:41,842 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 22:31:41,843 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 22:31:41,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:31:41,843 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:31:41,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:31:41,843 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 22:31:41,843 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:31:41,843 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-12-13 22:31:42,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:31:42,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:31:42,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:31:42,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:31:42,098 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:31:42,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-13 22:31:44,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:31:44,874 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:31:44,875 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-12-13 22:31:44,885 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data/19c10c334/90daa3f968274be49a9076952c1bdce4/FLAGfc5ab8cf7 [2022-12-13 22:31:44,896 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/data/19c10c334/90daa3f968274be49a9076952c1bdce4 [2022-12-13 22:31:44,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:31:44,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:31:44,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:31:44,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:31:44,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:31:44,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:31:44" (1/1) ... [2022-12-13 22:31:44,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c32ae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:44, skipping insertion in model container [2022-12-13 22:31:44,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:31:44" (1/1) ... [2022-12-13 22:31:44,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:31:44,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:31:45,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:31:45,329 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 22:31:45,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:31:45,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:31:45,386 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:31:45,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:31:45,491 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:31:45,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45 WrapperNode [2022-12-13 22:31:45,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:31:45,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:31:45,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:31:45,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:31:45,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,544 INFO L138 Inliner]: procedures = 366, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-12-13 22:31:45,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:31:45,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:31:45,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:31:45,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:31:45,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,570 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:31:45,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:31:45,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:31:45,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:31:45,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (1/1) ... [2022-12-13 22:31:45,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:31:45,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:31:45,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:31:45,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:31:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 22:31:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:31:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:31:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 22:31:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 22:31:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 22:31:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 22:31:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 22:31:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:31:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:31:45,636 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 22:31:45,748 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:31:45,750 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:31:45,960 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:31:45,965 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:31:45,965 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:31:45,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:31:45 BoogieIcfgContainer [2022-12-13 22:31:45,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:31:45,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:31:45,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:31:45,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:31:45,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:31:44" (1/3) ... [2022-12-13 22:31:45,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197107b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:31:45, skipping insertion in model container [2022-12-13 22:31:45,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:31:45" (2/3) ... [2022-12-13 22:31:45,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197107b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:31:45, skipping insertion in model container [2022-12-13 22:31:45,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:31:45" (3/3) ... [2022-12-13 22:31:45,973 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-12-13 22:31:45,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:31:45,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-12-13 22:31:45,986 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:31:46,036 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 22:31:46,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 169 flow [2022-12-13 22:31:46,094 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-12-13 22:31:46,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:31:46,096 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. [2022-12-13 22:31:46,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 82 transitions, 169 flow [2022-12-13 22:31:46,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 81 transitions, 165 flow [2022-12-13 22:31:46,102 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:31:46,110 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 81 transitions, 165 flow [2022-12-13 22:31:46,112 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 81 transitions, 165 flow [2022-12-13 22:31:46,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 81 transitions, 165 flow [2022-12-13 22:31:46,125 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-12-13 22:31:46,125 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:31:46,125 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 82 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. [2022-12-13 22:31:46,126 INFO L119 LiptonReduction]: Number of co-enabled transitions 1218 [2022-12-13 22:31:53,499 INFO L134 LiptonReduction]: Checked pairs total: 2531 [2022-12-13 22:31:53,499 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-12-13 22:31:53,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:31:53,513 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=PETRI_NET, 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;@59642550, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:31:53,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-13 22:31:53,514 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 22:31:53,514 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:31:53,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:31:53,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 22:31:53,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 22:31:53,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:53,519 INFO L85 PathProgramCache]: Analyzing trace with hash 315, now seen corresponding path program 1 times [2022-12-13 22:31:53,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:31:53,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029269370] [2022-12-13 22:31:53,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:53,528 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 [2022-12-13 22:31:53,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:31:53,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 22:31:53,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:53,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 22:31:53,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:31:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:31:53,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:31:53,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:31:53,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029269370] [2022-12-13 22:31:53,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029269370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:53,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:53,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 22:31:53,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361738979] [2022-12-13 22:31:53,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:53,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:31:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:31:53,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:31:53,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:31:53,602 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 182 [2022-12-13 22:31:53,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2022-12-13 22:31:53,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:31:53,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 182 [2022-12-13 22:31:53,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:31:53,677 INFO L130 PetriNetUnfolder]: 40/103 cut-off events. [2022-12-13 22:31:53,677 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:31:53,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 103 events. 40/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 392 event pairs, 40 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 194. Up to 96 conditions per place. [2022-12-13 22:31:53,680 INFO L137 encePairwiseOnDemand]: 175/182 looper letters, 15 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-13 22:31:53,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 67 flow [2022-12-13 22:31:53,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:31:53,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 22:31:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 184 transitions. [2022-12-13 22:31:53,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5054945054945055 [2022-12-13 22:31:53,689 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 184 transitions. [2022-12-13 22:31:53,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 184 transitions. [2022-12-13 22:31:53,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:31:53,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 184 transitions. [2022-12-13 22:31:53,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 92.0) internal successors, (184), 2 states have internal predecessors, (184), 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) [2022-12-13 22:31:53,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2022-12-13 22:31:53,698 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2022-12-13 22:31:53,699 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 51 flow. Second operand 2 states and 184 transitions. [2022-12-13 22:31:53,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 67 flow [2022-12-13 22:31:53,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:31:53,702 INFO L231 Difference]: Finished difference. Result has 21 places, 17 transitions, 36 flow [2022-12-13 22:31:53,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=36, PETRI_PLACES=21, PETRI_TRANSITIONS=17} [2022-12-13 22:31:53,705 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -7 predicate places. [2022-12-13 22:31:53,706 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 17 transitions, 36 flow [2022-12-13 22:31:53,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 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) [2022-12-13 22:31:53,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:31:53,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 22:31:53,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:53,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:53,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 22:31:53,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:53,910 INFO L85 PathProgramCache]: Analyzing trace with hash 313653, now seen corresponding path program 1 times [2022-12-13 22:31:53,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:31:53,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064734230] [2022-12-13 22:31:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:53,913 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 [2022-12-13 22:31:53,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:31:53,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 22:31:53,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:54,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 22:31:54,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:31:54,092 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 22:31:54,093 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 [2022-12-13 22:31:54,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:31:54,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:31:54,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:31:54,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064734230] [2022-12-13 22:31:54,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064734230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:54,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:54,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:31:54,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399807542] [2022-12-13 22:31:54,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:54,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:31:54,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:31:54,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:31:54,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:31:54,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2022-12-13 22:31:54,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-12-13 22:31:54,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:31:54,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2022-12-13 22:31:54,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:31:54,242 INFO L130 PetriNetUnfolder]: 35/90 cut-off events. [2022-12-13 22:31:54,242 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:31:54,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 90 events. 35/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 320 event pairs, 25 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 176. Up to 62 conditions per place. [2022-12-13 22:31:54,243 INFO L137 encePairwiseOnDemand]: 178/182 looper letters, 16 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2022-12-13 22:31:54,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 21 transitions, 82 flow [2022-12-13 22:31:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:31:54,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:31:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2022-12-13 22:31:54,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4652014652014652 [2022-12-13 22:31:54,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2022-12-13 22:31:54,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2022-12-13 22:31:54,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:31:54,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2022-12-13 22:31:54,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2022-12-13 22:31:54,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2022-12-13 22:31:54,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2022-12-13 22:31:54,248 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 36 flow. Second operand 3 states and 254 transitions. [2022-12-13 22:31:54,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 21 transitions, 82 flow [2022-12-13 22:31:54,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 21 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:31:54,249 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 40 flow [2022-12-13 22:31:54,249 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2022-12-13 22:31:54,250 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2022-12-13 22:31:54,250 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 40 flow [2022-12-13 22:31:54,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-12-13 22:31:54,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:31:54,250 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 22:31:54,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 22:31:54,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:54,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 22:31:54,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash 313652, now seen corresponding path program 1 times [2022-12-13 22:31:54,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:31:54,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762315760] [2022-12-13 22:31:54,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:54,453 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 [2022-12-13 22:31:54,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:31:54,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 22:31:54,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:54,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 22:31:54,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:31:54,528 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 22:31:54,529 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 [2022-12-13 22:31:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:31:54,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:31:54,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:31:54,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762315760] [2022-12-13 22:31:54,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762315760] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:54,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:54,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:31:54,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372956358] [2022-12-13 22:31:54,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:54,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:31:54,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:31:54,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:31:54,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:31:54,615 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 182 [2022-12-13 22:31:54,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-12-13 22:31:54,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:31:54,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 182 [2022-12-13 22:31:54,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:31:54,675 INFO L130 PetriNetUnfolder]: 24/64 cut-off events. [2022-12-13 22:31:54,675 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 22:31:54,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 64 events. 24/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 194 event pairs, 24 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 137. Up to 60 conditions per place. [2022-12-13 22:31:54,676 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 11 selfloop transitions, 1 changer transitions 0/14 dead transitions. [2022-12-13 22:31:54,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 60 flow [2022-12-13 22:31:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:31:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:31:54,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2022-12-13 22:31:54,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4542124542124542 [2022-12-13 22:31:54,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2022-12-13 22:31:54,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2022-12-13 22:31:54,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:31:54,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2022-12-13 22:31:54,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2022-12-13 22:31:54,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2022-12-13 22:31:54,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2022-12-13 22:31:54,683 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 40 flow. Second operand 3 states and 248 transitions. [2022-12-13 22:31:54,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 60 flow [2022-12-13 22:31:54,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:31:54,685 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 32 flow [2022-12-13 22:31:54,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2022-12-13 22:31:54,685 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2022-12-13 22:31:54,686 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 32 flow [2022-12-13 22:31:54,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2022-12-13 22:31:54,686 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:31:54,686 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 22:31:54,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 22:31:54,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:54,887 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)] === [2022-12-13 22:31:54,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:54,887 INFO L85 PathProgramCache]: Analyzing trace with hash 9723512, now seen corresponding path program 1 times [2022-12-13 22:31:54,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:31:54,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235971088] [2022-12-13 22:31:54,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:54,888 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 [2022-12-13 22:31:54,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:31:54,889 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 22:31:54,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:31:54,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 22:31:54,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:31:54,952 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 22:31:54,952 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 [2022-12-13 22:31:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:31:54,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:31:54,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:31:54,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235971088] [2022-12-13 22:31:54,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235971088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:31:54,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:31:54,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:31:54,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705341746] [2022-12-13 22:31:54,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:31:54,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:31:54,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:31:54,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:31:54,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:31:55,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 182 [2022-12-13 22:31:55,115 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2022-12-13 22:31:55,115 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:31:55,115 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 182 [2022-12-13 22:31:55,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:31:55,213 INFO L130 PetriNetUnfolder]: 22/68 cut-off events. [2022-12-13 22:31:55,214 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:31:55,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 68 events. 22/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 209 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 139. Up to 36 conditions per place. [2022-12-13 22:31:55,214 INFO L137 encePairwiseOnDemand]: 174/182 looper letters, 18 selfloop transitions, 8 changer transitions 0/26 dead transitions. [2022-12-13 22:31:55,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 108 flow [2022-12-13 22:31:55,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:31:55,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 22:31:55,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 389 transitions. [2022-12-13 22:31:55,217 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42747252747252745 [2022-12-13 22:31:55,217 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 389 transitions. [2022-12-13 22:31:55,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 389 transitions. [2022-12-13 22:31:55,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:31:55,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 389 transitions. [2022-12-13 22:31:55,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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) [2022-12-13 22:31:55,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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) [2022-12-13 22:31:55,222 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 states have internal predecessors, (1092), 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) [2022-12-13 22:31:55,222 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 32 flow. Second operand 5 states and 389 transitions. [2022-12-13 22:31:55,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 108 flow [2022-12-13 22:31:55,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 26 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:31:55,224 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 85 flow [2022-12-13 22:31:55,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=85, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2022-12-13 22:31:55,224 INFO L288 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2022-12-13 22:31:55,225 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 85 flow [2022-12-13 22:31:55,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2022-12-13 22:31:55,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:31:55,225 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:31:55,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:55,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:55,426 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)] === [2022-12-13 22:31:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:31:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1915222727, now seen corresponding path program 1 times [2022-12-13 22:31:55,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:31:55,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019558447] [2022-12-13 22:31:55,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:31:55,427 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 [2022-12-13 22:31:55,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:31:55,428 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 22:31:55,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:31:55,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:31:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:31:55,648 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 22:31:55,648 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:31:55,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (17 of 18 remaining) [2022-12-13 22:31:55,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2022-12-13 22:31:55,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-12-13 22:31:55,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-12-13 22:31:55,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-12-13 22:31:55,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-12-13 22:31:55,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2022-12-13 22:31:55,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2022-12-13 22:31:55,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2022-12-13 22:31:55,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-12-13 22:31:55,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2022-12-13 22:31:55,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-12-13 22:31:55,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-12-13 22:31:55,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-12-13 22:31:55,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-12-13 22:31:55,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-12-13 22:31:55,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-12-13 22:31:55,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-12-13 22:31:55,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 22:31:55,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 22:31:55,855 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 22:31:55,872 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 22:31:55,873 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:31:55,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:31:55 BasicIcfg [2022-12-13 22:31:55,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:31:55,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:31:55,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:31:55,907 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:31:55,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:31:45" (3/4) ... [2022-12-13 22:31:55,910 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 22:31:55,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:31:55,910 INFO L158 Benchmark]: Toolchain (without parser) took 11011.67ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 57.7MB in the beginning and 29.9MB in the end (delta: 27.8MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2022-12-13 22:31:55,910 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 30.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:31:55,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.51ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 35.3MB in the end (delta: 22.1MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-12-13 22:31:55,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.82ms. Allocated memory is still 81.8MB. Free memory was 35.3MB in the beginning and 58.8MB in the end (delta: -23.5MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-12-13 22:31:55,912 INFO L158 Benchmark]: Boogie Preprocessor took 29.86ms. Allocated memory is still 81.8MB. Free memory was 58.5MB in the beginning and 56.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:31:55,912 INFO L158 Benchmark]: RCFGBuilder took 391.64ms. Allocated memory is still 81.8MB. Free memory was 56.8MB in the beginning and 40.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 22:31:55,912 INFO L158 Benchmark]: TraceAbstraction took 9938.22ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 29.9MB in the end (delta: 9.3MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-12-13 22:31:55,913 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 98.6MB. Free memory is still 29.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:31:55,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 30.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.51ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 35.3MB in the end (delta: 22.1MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.82ms. Allocated memory is still 81.8MB. Free memory was 35.3MB in the beginning and 58.8MB in the end (delta: -23.5MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.86ms. Allocated memory is still 81.8MB. Free memory was 58.5MB in the beginning and 56.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.64ms. Allocated memory is still 81.8MB. Free memory was 56.8MB in the beginning and 40.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9938.22ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 29.9MB in the end (delta: 9.3MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 98.6MB. Free memory is still 29.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4s, 85 PlacesBefore, 28 PlacesAfterwards, 81 TransitionsBefore, 24 TransitionsAfterwards, 1218 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 100 TotalNumberOfCompositions, 2531 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1455, independent: 1317, independent conditional: 0, independent unconditional: 1317, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 722, independent: 695, independent conditional: 0, independent unconditional: 695, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1455, independent: 622, independent conditional: 0, independent unconditional: 622, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 722, unknown conditional: 0, unknown unconditional: 722] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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={-2147483648:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=0, t1={-2147483645:0}] [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={-2147483648:0}, p={-2147483648:28}, p={-2147483648:28}, s={-2147483648:0}, 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 40 mSDtfsCounter, 308 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=85occurred in iteration=4, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 [2022-12-13 22:31:55,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_662aeb4f-3e0a-49a7-b848-c41e9263eacb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample