./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:18:35,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:18:35,521 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:18:35,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:18:35,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:18:35,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:18:35,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:18:35,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:18:35,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:18:35,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:18:35,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:18:35,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:18:35,556 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:18:35,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:18:35,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:18:35,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:18:35,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:18:35,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:18:35,559 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:18:35,560 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:18:35,560 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:18:35,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:18:35,564 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:18:35,564 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:18:35,565 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:18:35,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:18:35,565 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:18:35,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:18:35,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:18:35,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:35,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:18:35,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:18:35,568 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:18:35,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:18:35,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:18:35,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:18:35,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:18:35,569 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:18:35,569 INFO L153 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_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 [2023-11-12 02:18:35,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:18:35,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:18:35,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:18:35,907 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:18:35,908 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:18:35,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 02:18:39,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:18:39,280 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:18:39,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 02:18:39,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data/81c88d4d1/36fe74d9d4e4497ea9f719a542e8e2a7/FLAG7809cc946 [2023-11-12 02:18:39,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data/81c88d4d1/36fe74d9d4e4497ea9f719a542e8e2a7 [2023-11-12 02:18:39,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:18:39,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:18:39,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:39,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:18:39,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:18:39,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:39" (1/1) ... [2023-11-12 02:18:39,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c79cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:39, skipping insertion in model container [2023-11-12 02:18:39,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:39" (1/1) ... [2023-11-12 02:18:39,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:18:39,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:39,646 ERROR L324 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) [2023-11-12 02:18:39,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16a785f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:39, skipping insertion in model container [2023-11-12 02:18:39,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:39,647 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:18:39,649 INFO L158 Benchmark]: Toolchain (without parser) took 321.96ms. Allocated memory is still 163.6MB. Free memory was 119.9MB in the beginning and 109.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:18:39,650 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:18:39,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.47ms. Allocated memory is still 163.6MB. Free memory was 119.6MB in the beginning and 109.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:18:39,652 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 59.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.47ms. Allocated memory is still 163.6MB. Free memory was 119.6MB in the beginning and 109.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 160]: 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_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:18:42,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:18:42,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:18:42,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:18:42,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:18:42,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:18:42,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:18:42,449 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:18:42,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:18:42,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:18:42,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:18:42,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:18:42,457 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:18:42,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:18:42,460 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:18:42,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:18:42,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:18:42,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:18:42,462 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:18:42,463 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:18:42,463 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:18:42,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:18:42,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:18:42,465 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:18:42,465 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:18:42,466 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:18:42,466 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:18:42,467 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:18:42,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:18:42,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:18:42,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:18:42,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:42,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:18:42,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:18:42,471 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:18:42,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:18:42,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:18:42,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:18:42,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:18:42,473 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:18:42,474 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:18:42,474 INFO L153 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_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 [2023-11-12 02:18:42,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:18:42,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:18:42,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:18:42,935 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:18:42,935 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:18:42,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 02:18:46,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:18:46,405 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:18:46,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-12 02:18:46,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data/2b8b72900/fcbc342eb221416bbf8e75467a085544/FLAG4d1c11564 [2023-11-12 02:18:46,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/data/2b8b72900/fcbc342eb221416bbf8e75467a085544 [2023-11-12 02:18:46,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:18:46,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:18:46,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:46,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:18:46,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:18:46,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:46,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7adfddf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46, skipping insertion in model container [2023-11-12 02:18:46,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:46,502 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:18:46,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:46,831 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:18:46,842 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:18:46,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:46,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:18:46,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:46,951 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:18:46,953 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:18:46,969 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:18:46,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46 WrapperNode [2023-11-12 02:18:46,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:46,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:46,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:18:46,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:18:46,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,079 INFO L138 Inliner]: procedures = 29, calls = 84, calls flagged for inlining = 23, calls inlined = 29, statements flattened = 352 [2023-11-12 02:18:47,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:47,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:18:47,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:18:47,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:18:47,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:18:47,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:18:47,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:18:47,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:18:47,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (1/1) ... [2023-11-12 02:18:47,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:47,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:47,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:18:47,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:18:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:18:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:18:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:18:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:18:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:18:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:18:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:18:47,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:18:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:18:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:18:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:18:47,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:18:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:18:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:18:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:18:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:18:47,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:18:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:18:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:18:47,293 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:18:47,483 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:18:47,485 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:18:48,399 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:18:48,749 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:18:48,750 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-12 02:18:48,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:48 BoogieIcfgContainer [2023-11-12 02:18:48,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:18:48,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:18:48,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:18:48,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:18:48,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:18:46" (1/3) ... [2023-11-12 02:18:48,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d9b135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:48, skipping insertion in model container [2023-11-12 02:18:48,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:46" (2/3) ... [2023-11-12 02:18:48,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d9b135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:48, skipping insertion in model container [2023-11-12 02:18:48,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:48" (3/3) ... [2023-11-12 02:18:48,767 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series2.wvr.c [2023-11-12 02:18:48,785 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:18:48,786 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-11-12 02:18:48,786 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:18:48,974 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 02:18:49,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 311 transitions, 650 flow [2023-11-12 02:18:49,240 INFO L124 PetriNetUnfolderBase]: 22/307 cut-off events. [2023-11-12 02:18:49,240 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:18:49,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 307 events. 22/307 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 301 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 251. Up to 2 conditions per place. [2023-11-12 02:18:49,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 311 transitions, 650 flow [2023-11-12 02:18:49,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 302 transitions, 628 flow [2023-11-12 02:18:49,267 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:18:49,279 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 302 transitions, 628 flow [2023-11-12 02:18:49,284 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 302 transitions, 628 flow [2023-11-12 02:18:49,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 302 transitions, 628 flow [2023-11-12 02:18:49,375 INFO L124 PetriNetUnfolderBase]: 22/302 cut-off events. [2023-11-12 02:18:49,376 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:18:49,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 302 events. 22/302 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 299 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 251. Up to 2 conditions per place. [2023-11-12 02:18:49,384 INFO L119 LiptonReduction]: Number of co-enabled transitions 4344 [2023-11-12 02:19:35,610 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 139 DAG size of output: 138 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-12 02:19:40,359 INFO L134 LiptonReduction]: Checked pairs total: 6699 [2023-11-12 02:19:40,359 INFO L136 LiptonReduction]: Total number of compositions: 315 [2023-11-12 02:19:40,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:40,380 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;@77f215a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:40,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-12 02:19:40,383 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:19:40,384 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-12 02:19:40,384 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:40,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:40,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-12 02:19:40,385 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2023-11-12 02:19:40,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:40,391 INFO L85 PathProgramCache]: Analyzing trace with hash 47935, now seen corresponding path program 1 times [2023-11-12 02:19:40,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:19:40,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341081890] [2023-11-12 02:19:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:40,405 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 [2023-11-12 02:19:40,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:19:40,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:19:40,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e45a00b-685e-4bd2-9549-e00af827f8c6/bin/uautomizer-verify-uTZkv6EMXl/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