./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/head-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/head-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu --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 64bit --witnessprinter.graph.data.programhash cba5a963119dc53e5779ba4def398ef43e1b516dbff57f313e5d5d7dfbebfbb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:36,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:36,734 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-19 07:48:36,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:36,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:36,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:36,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:36,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:36,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:36,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:36,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:36,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:36,771 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:36,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:36,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:36,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:36,774 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:48:36,774 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:48:36,775 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:48:36,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:36,776 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:48:36,777 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:48:36,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:36,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:36,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:36,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:36,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:36,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:36,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:36,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:36,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:36,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:36,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:36,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:36,783 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:36,783 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_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cba5a963119dc53e5779ba4def398ef43e1b516dbff57f313e5d5d7dfbebfbb9 [2023-11-19 07:48:37,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:37,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:37,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:37,182 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:37,183 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:37,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/head-1.i [2023-11-19 07:48:40,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:41,019 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:41,020 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/sv-benchmarks/c/busybox-1.22.0/head-1.i [2023-11-19 07:48:41,065 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data/888ee3864/e053c848452d4ec9821c7fee474d70a5/FLAG1b8f04368 [2023-11-19 07:48:41,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data/888ee3864/e053c848452d4ec9821c7fee474d70a5 [2023-11-19 07:48:41,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:41,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:41,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:41,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:41,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:41,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:41" (1/1) ... [2023-11-19 07:48:41,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514e452b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:41, skipping insertion in model container [2023-11-19 07:48:41,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:41" (1/1) ... [2023-11-19 07:48:41,198 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:42,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:42,813 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) [2023-11-19 07:48:42,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71c59a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:42, skipping insertion in model container [2023-11-19 07:48:42,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:42,815 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:48:42,818 INFO L158 Benchmark]: Toolchain (without parser) took 1722.21ms. Allocated memory is still 172.0MB. Free memory was 137.0MB in the beginning and 102.9MB in the end (delta: 34.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 07:48:42,820 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:48:42,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1719.27ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 102.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 07:48:42,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1719.27ms. Allocated memory is still 172.0MB. Free memory was 136.4MB in the beginning and 102.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2251]: 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_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/head-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu --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 64bit --witnessprinter.graph.data.programhash cba5a963119dc53e5779ba4def398ef43e1b516dbff57f313e5d5d7dfbebfbb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:45,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:45,687 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-19 07:48:45,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:45,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:45,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:45,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:45,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:45,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:45,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:45,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:45,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:45,737 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:45,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:45,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:45,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:45,744 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:48:45,744 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:48:45,744 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:48:45,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:45,746 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:48:45,746 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:48:45,747 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:48:45,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:48:45,748 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:45,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:45,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:45,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:45,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:45,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:45,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:45,752 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:48:45,752 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:48:45,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:45,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:45,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:45,753 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:48:45,753 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:45,754 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_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cba5a963119dc53e5779ba4def398ef43e1b516dbff57f313e5d5d7dfbebfbb9 [2023-11-19 07:48:46,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:46,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:46,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:46,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:46,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:46,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/head-1.i [2023-11-19 07:48:49,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:50,274 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:50,275 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/sv-benchmarks/c/busybox-1.22.0/head-1.i [2023-11-19 07:48:50,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data/dc1a719bb/5c8ff2adca464f50b0a4143badbd5147/FLAG51b91545c [2023-11-19 07:48:50,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/data/dc1a719bb/5c8ff2adca464f50b0a4143badbd5147 [2023-11-19 07:48:50,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:50,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:50,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:50,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:50,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:50,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:50,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1deb2450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:50, skipping insertion in model container [2023-11-19 07:48:50,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:50" (1/1) ... [2023-11-19 07:48:50,465 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:51,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:51,959 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:48:51,997 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:52,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:52,163 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:52,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:52,530 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,530 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,530 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,530 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,531 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,531 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,531 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,531 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,531 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:52,539 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:52,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52 WrapperNode [2023-11-19 07:48:52,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:52,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:52,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:52,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:52,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,709 INFO L138 Inliner]: procedures = 595, calls = 371, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 1089 [2023-11-19 07:48:52,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:52,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:52,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:52,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:52,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:52,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:52,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:52,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:52,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (1/1) ... [2023-11-19 07:48:52,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:52,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:52,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-19 07:48:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-19 07:48:53,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-19 07:48:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2023-11-19 07:48:53,021 INFO L138 BoogieDeclarations]: Found implementation of procedure _IO_getc [2023-11-19 07:48:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-19 07:48:53,021 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-19 07:48:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 07:48:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:48:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:48:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:48:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 07:48:53,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 07:48:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-19 07:48:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:48:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-19 07:48:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:48:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:48:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 07:48:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 07:48:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 07:48:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 07:48:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:53,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:48:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:48:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:48:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 07:48:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 07:48:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure getopt [2023-11-19 07:48:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt [2023-11-19 07:48:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:48:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:48:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:48:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-19 07:48:53,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-19 07:48:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 07:48:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:53,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-19 07:48:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 07:48:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 07:48:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 07:48:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 07:48:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc_fgets [2023-11-19 07:48:53,027 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc_fgets [2023-11-19 07:48:53,028 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 07:48:53,028 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 07:48:53,692 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:53,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:03,322 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:03,347 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:03,347 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-19 07:49:03,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:03 BoogieIcfgContainer [2023-11-19 07:49:03,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:03,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:03,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:03,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:03,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:50" (1/3) ... [2023-11-19 07:49:03,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648cd754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:03, skipping insertion in model container [2023-11-19 07:49:03,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:52" (2/3) ... [2023-11-19 07:49:03,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@648cd754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:03, skipping insertion in model container [2023-11-19 07:49:03,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:03" (3/3) ... [2023-11-19 07:49:03,373 INFO L112 eAbstractionObserver]: Analyzing ICFG head-1.i [2023-11-19 07:49:03,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:03,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 273 error locations. [2023-11-19 07:49:03,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:03,481 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;@26d6a66b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:03,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 273 error locations. [2023-11-19 07:49:03,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 772 states, 457 states have (on average 1.87527352297593) internal successors, (857), 730 states have internal predecessors, (857), 31 states have call successors, (31), 11 states have call predecessors, (31), 11 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 07:49:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:49:03,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:03,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:49:03,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [xmalloc_fgetsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 270 more)] === [2023-11-19 07:49:03,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:03,509 INFO L85 PathProgramCache]: Analyzing trace with hash 624664, now seen corresponding path program 1 times [2023-11-19 07:49:03,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:03,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442971968] [2023-11-19 07:49:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:03,525 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 [2023-11-19 07:49:03,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:03,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:49:03,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:49:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:03,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:49:03,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:04,059 INFO L378 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 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:49:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:04,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:04,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:49:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442971968] [2023-11-19 07:49:04,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442971968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:04,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:04,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:04,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187700869] [2023-11-19 07:49:04,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:04,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:04,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:49:04,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:04,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:04,176 INFO L87 Difference]: Start difference. First operand has 772 states, 457 states have (on average 1.87527352297593) internal successors, (857), 730 states have internal predecessors, (857), 31 states have call successors, (31), 11 states have call predecessors, (31), 11 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:08,064 INFO L93 Difference]: Finished difference Result 959 states and 1121 transitions. [2023-11-19 07:49:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:08,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 07:49:08,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:08,096 INFO L225 Difference]: With dead ends: 959 [2023-11-19 07:49:08,101 INFO L226 Difference]: Without dead ends: 957 [2023-11-19 07:49:08,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:08,116 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 296 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:08,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1284 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-19 07:49:08,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-11-19 07:49:08,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 754. [2023-11-19 07:49:08,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 447 states have (on average 1.8165548098434003) internal successors, (812), 717 states have internal predecessors, (812), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 07:49:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 869 transitions. [2023-11-19 07:49:08,231 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 869 transitions. Word has length 3 [2023-11-19 07:49:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:08,232 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 869 transitions. [2023-11-19 07:49:08,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 869 transitions. [2023-11-19 07:49:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:49:08,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:08,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:49:08,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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)] Ended with exit code 0 [2023-11-19 07:49:08,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:49:08,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [xmalloc_fgetsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 270 more)] === [2023-11-19 07:49:08,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:08,442 INFO L85 PathProgramCache]: Analyzing trace with hash 624665, now seen corresponding path program 1 times [2023-11-19 07:49:08,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:08,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656222491] [2023-11-19 07:49:08,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:08,444 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 [2023-11-19 07:49:08,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:08,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:49:08,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:49:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:08,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:49:08,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:08,953 INFO L378 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 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:49:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:09,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:09,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:49:09,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656222491] [2023-11-19 07:49:09,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656222491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:09,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:09,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:09,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281828451] [2023-11-19 07:49:09,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:09,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:49:09,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:49:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:49:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:09,013 INFO L87 Difference]: Start difference. First operand 754 states and 869 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:13,070 INFO L93 Difference]: Finished difference Result 753 states and 868 transitions. [2023-11-19 07:49:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:49:13,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 07:49:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:13,078 INFO L225 Difference]: With dead ends: 753 [2023-11-19 07:49:13,078 INFO L226 Difference]: Without dead ends: 753 [2023-11-19 07:49:13,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:49:13,081 INFO L413 NwaCegarLoop]: 861 mSDtfsCounter, 13 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:13,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1461 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-19 07:49:13,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-19 07:49:13,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 753. [2023-11-19 07:49:13,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 447 states have (on average 1.8143176733780761) internal successors, (811), 716 states have internal predecessors, (811), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 07:49:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 868 transitions. [2023-11-19 07:49:13,125 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 868 transitions. Word has length 3 [2023-11-19 07:49:13,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:13,126 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 868 transitions. [2023-11-19 07:49:13,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:13,127 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 868 transitions. [2023-11-19 07:49:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:49:13,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:13,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:49:13,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:13,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:49:13,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [xmalloc_fgetsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 270 more)] === [2023-11-19 07:49:13,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:13,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1430067273, now seen corresponding path program 1 times [2023-11-19 07:49:13,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:13,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209367496] [2023-11-19 07:49:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:13,341 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 [2023-11-19 07:49:13,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:13,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:49:13,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:49:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:13,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:49:13,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:13,853 INFO L378 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 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:49:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:14,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:14,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:49:14,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209367496] [2023-11-19 07:49:14,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209367496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:14,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:14,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:49:14,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040737589] [2023-11-19 07:49:14,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:14,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:49:14,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:49:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:49:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:49:14,064 INFO L87 Difference]: Start difference. First operand 753 states and 868 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-19 07:49:19,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:19,933 INFO L93 Difference]: Finished difference Result 757 states and 872 transitions. [2023-11-19 07:49:19,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:49:19,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 07:49:19,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:19,941 INFO L225 Difference]: With dead ends: 757 [2023-11-19 07:49:19,942 INFO L226 Difference]: Without dead ends: 757 [2023-11-19 07:49:19,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:49:19,944 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 14 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:19,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2062 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-19 07:49:19,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-19 07:49:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 755. [2023-11-19 07:49:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 449 states have (on average 1.8106904231625836) internal successors, (813), 718 states have internal predecessors, (813), 31 states have call successors, (31), 11 states have call predecessors, (31), 10 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-19 07:49:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 870 transitions. [2023-11-19 07:49:19,999 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 870 transitions. Word has length 6 [2023-11-19 07:49:19,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:19,999 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 870 transitions. [2023-11-19 07:49:20,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-11-19 07:49:20,001 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 870 transitions. [2023-11-19 07:49:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:49:20,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:20,003 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:20,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:20,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:49:20,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [xmalloc_fgetsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, xmalloc_fgetsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 270 more)] === [2023-11-19 07:49:20,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:20,214 INFO L85 PathProgramCache]: Analyzing trace with hash -973375988, now seen corresponding path program 1 times [2023-11-19 07:49:20,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:49:20,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365495088] [2023-11-19 07:49:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:20,215 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 [2023-11-19 07:49:20,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:49:20,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:49:20,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc72fdd3-bc83-4a0a-a483-1404d2fb1557/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:49:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:20,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:49:20,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:20,679 INFO L378 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 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:49:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:21,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:22,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:49:22,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365495088] [2023-11-19 07:49:22,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365495088] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:22,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:49:22,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:49:22,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044643540] [2023-11-19 07:49:22,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:22,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:49:22,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:49:22,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:49:22,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:49:22,247 INFO L87 Difference]: Start difference. First operand 755 states and 870 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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)