./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/stty-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/stty-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya --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 407efb5d110f0d8a5006d45a10a4353022c10a59bc24e54b714ee2eb1689c810 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:44:13,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:44:13,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-28 23:44:13,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:44:13,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:44:13,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:44:13,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:44:13,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:44:13,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:44:13,622 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:44:13,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:44:13,623 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:44:13,624 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:44:13,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:44:13,625 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:44:13,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:44:13,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:44:13,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:44:13,627 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 23:44:13,627 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 23:44:13,628 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-28 23:44:13,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:44:13,630 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:44:13,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:44:13,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:44:13,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:44:13,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:44:13,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:44:13,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:44:13,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:44:13,634 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:44:13,634 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:44:13,634 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:44:13,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:44:13,635 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:44:13,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:44:13,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:44:13,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:44:13,635 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_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 407efb5d110f0d8a5006d45a10a4353022c10a59bc24e54b714ee2eb1689c810 [2023-11-28 23:44:13,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:44:13,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:44:13,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:44:13,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:44:13,885 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:44:13,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-28 23:44:16,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:44:17,029 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:44:17,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-28 23:44:17,064 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data/4e486f859/f22020564e9841c491596cb6720a7697/FLAG09bc4a76a [2023-11-28 23:44:17,077 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data/4e486f859/f22020564e9841c491596cb6720a7697 [2023-11-28 23:44:17,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:44:17,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:44:17,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:44:17,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:44:17,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:44:17,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:17" (1/1) ... [2023-11-28 23:44:17,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7350c102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:17, skipping insertion in model container [2023-11-28 23:44:17,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:17" (1/1) ... [2023-11-28 23:44:17,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:44:18,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:44:19,035 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) [2023-11-28 23:44:19,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1086e508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:19, skipping insertion in model container [2023-11-28 23:44:19,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:44:19,036 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-28 23:44:19,038 INFO L158 Benchmark]: Toolchain (without parser) took 1955.84ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 111.8MB in the beginning and 102.7MB in the end (delta: 9.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2023-11-28 23:44:19,038 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:44:19,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1953.68ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 111.8MB in the beginning and 102.7MB in the end (delta: 9.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2023-11-28 23:44:19,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 153.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1953.68ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 111.8MB in the beginning and 102.7MB in the end (delta: 9.1MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3077]: 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_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/stty-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya --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 407efb5d110f0d8a5006d45a10a4353022c10a59bc24e54b714ee2eb1689c810 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:44:20,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:44:20,836 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-28 23:44:20,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:44:20,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:44:20,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:44:20,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:44:20,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:44:20,879 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:44:20,880 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:44:20,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:44:20,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:44:20,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:44:20,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:44:20,883 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:44:20,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:44:20,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:44:20,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:44:20,885 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 23:44:20,886 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 23:44:20,886 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-28 23:44:20,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:44:20,887 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:44:20,888 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 23:44:20,888 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 23:44:20,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:44:20,889 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:44:20,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:44:20,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:44:20,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:44:20,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:44:20,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:44:20,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:44:20,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:44:20,892 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 23:44:20,892 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 23:44:20,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:44:20,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:44:20,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:44:20,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:44:20,893 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 23:44:20,894 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_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 407efb5d110f0d8a5006d45a10a4353022c10a59bc24e54b714ee2eb1689c810 [2023-11-28 23:44:21,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:44:21,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:44:21,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:44:21,193 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:44:21,193 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:44:21,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-28 23:44:23,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:44:24,408 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:44:24,409 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/sv-benchmarks/c/busybox-1.22.0/stty-2.i [2023-11-28 23:44:24,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data/07ce2db16/11487fb8c2514157933e223a8c3f63e9/FLAGb36624c34 [2023-11-28 23:44:24,462 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/data/07ce2db16/11487fb8c2514157933e223a8c3f63e9 [2023-11-28 23:44:24,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:44:24,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:44:24,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:44:24,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:44:24,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:44:24,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:24" (1/1) ... [2023-11-28 23:44:24,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64520e38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:24, skipping insertion in model container [2023-11-28 23:44:24,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:24" (1/1) ... [2023-11-28 23:44:24,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:44:26,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:44:26,408 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-28 23:44:26,465 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:44:26,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:44:26,707 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:44:26,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:44:27,209 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,210 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,210 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,210 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,210 WARN L675 CHandler]: The function output_func is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,210 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,211 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,211 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,211 WARN L675 CHandler]: The function vsnprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,211 WARN L675 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:44:27,217 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:44:27,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27 WrapperNode [2023-11-28 23:44:27,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:44:27,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:44:27,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:44:27,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:44:27,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,301 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,444 INFO L138 Inliner]: procedures = 691, calls = 2288, calls flagged for inlining = 37, calls inlined = 35, statements flattened = 3633 [2023-11-28 23:44:27,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:44:27,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:44:27,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:44:27,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:44:27,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,498 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-28 23:44:27,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:44:27,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:44:27,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:44:27,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:44:27,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (1/1) ... [2023-11-28 23:44:27,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:44:27,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:44:27,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:44:27,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:44:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-28 23:44:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2023-11-28 23:44:27,737 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2023-11-28 23:44:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2023-11-28 23:44:27,738 INFO L138 BoogieDeclarations]: Found implementation of procedure fcntl [2023-11-28 23:44:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_terminal_width_height [2023-11-28 23:44:27,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_terminal_width_height [2023-11-28 23:44:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-28 23:44:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure set_control_char_or_die [2023-11-28 23:44:27,738 INFO L138 BoogieDeclarations]: Found implementation of procedure set_control_char_or_die [2023-11-28 23:44:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-28 23:44:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-28 23:44:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:44:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-28 23:44:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-28 23:44:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-28 23:44:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device_and_die [2023-11-28 23:44:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device_and_die [2023-11-28 23:44:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure set_window_size [2023-11-28 23:44:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure set_window_size [2023-11-28 23:44:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-28 23:44:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-28 23:44:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-28 23:44:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-28 23:44:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure find_param [2023-11-28 23:44:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure find_param [2023-11-28 23:44:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_range_sfx [2023-11-28 23:44:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_range_sfx [2023-11-28 23:44:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure tty_value_to_baud [2023-11-28 23:44:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_value_to_baud [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-28 23:44:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-28 23:44:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2023-11-28 23:44:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure nth_string [2023-11-28 23:44:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure nth_string [2023-11-28 23:44:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-28 23:44:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure find_mode [2023-11-28 23:44:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mode [2023-11-28 23:44:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:44:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:44:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-28 23:44:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-28 23:44:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-28 23:44:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-28 23:44:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-28 23:44:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-28 23:44:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-28 23:44:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-28 23:44:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-28 23:44:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-28 23:44:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure display_speed [2023-11-28 23:44:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure display_speed [2023-11-28 23:44:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure tty_baud_to_value [2023-11-28 23:44:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_baud_to_value [2023-11-28 23:44:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-28 23:44:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-28 23:44:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure get_ptr_to_tcflag [2023-11-28 23:44:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ptr_to_tcflag [2023-11-28 23:44:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure tcgetattr [2023-11-28 23:44:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure tcgetattr [2023-11-28 23:44:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure recover_mode [2023-11-28 23:44:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_mode [2023-11-28 23:44:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-28 23:44:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-28 23:44:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 23:44:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 23:44:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:44:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure set_speed_or_die [2023-11-28 23:44:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure set_speed_or_die [2023-11-28 23:44:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-28 23:44:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure xstrtoull_range_sfx [2023-11-28 23:44:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure xstrtoull_range_sfx [2023-11-28 23:44:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-28 23:44:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-28 23:44:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-28 23:44:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-28 23:44:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-28 23:44:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2023-11-28 23:44:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2023-11-28 23:44:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure find_control [2023-11-28 23:44:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure find_control [2023-11-28 23:44:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure xatou [2023-11-28 23:44:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou [2023-11-28 23:44:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure perror_on_device [2023-11-28 23:44:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure perror_on_device [2023-11-28 23:44:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure wh_helper [2023-11-28 23:44:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure wh_helper [2023-11-28 23:44:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode [2023-11-28 23:44:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode [2023-11-28 23:44:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-28 23:44:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-28 23:44:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-28 23:44:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-28 23:44:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-28 23:44:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure index_in_strings [2023-11-28 23:44:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure index_in_strings [2023-11-28 23:44:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure newline [2023-11-28 23:44:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure newline [2023-11-28 23:44:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure wrapf [2023-11-28 23:44:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure wrapf [2023-11-28 23:44:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-28 23:44:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-28 23:44:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-28 23:44:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure display_window_size [2023-11-28 23:44:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure display_window_size [2023-11-28 23:44:28,299 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:44:28,302 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:44:39,919 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-28 23:44:51,380 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:44:51,800 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:44:51,801 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-28 23:44:51,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:51 BoogieIcfgContainer [2023-11-28 23:44:51,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:44:51,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:44:51,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:44:51,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:44:51,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:44:24" (1/3) ... [2023-11-28 23:44:51,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5616f997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:44:51, skipping insertion in model container [2023-11-28 23:44:51,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:27" (2/3) ... [2023-11-28 23:44:51,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5616f997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:44:51, skipping insertion in model container [2023-11-28 23:44:51,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:51" (3/3) ... [2023-11-28 23:44:51,809 INFO L112 eAbstractionObserver]: Analyzing ICFG stty-2.i [2023-11-28 23:44:51,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:44:51,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1293 error locations. [2023-11-28 23:44:51,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:44:51,900 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;@7cabe348, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:44:51,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1293 error locations. [2023-11-28 23:44:51,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 2688 states, 1214 states have (on average 2.3196046128500822) internal successors, (2816), 2546 states have internal predecessors, (2816), 147 states have call successors, (147), 36 states have call predecessors, (147), 36 states have return successors, (147), 143 states have call predecessors, (147), 147 states have call successors, (147) [2023-11-28 23:44:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-28 23:44:51,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:44:51,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-28 23:44:51,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:44:51,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 165515, now seen corresponding path program 1 times [2023-11-28 23:44:51,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:44:51,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760412533] [2023-11-28 23:44:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:51,938 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 [2023-11-28 23:44:51,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:44:51,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:44:51,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:44:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:54,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:44:54,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:54,397 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 [2023-11-28 23:44:54,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:54,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:44:54,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:44:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760412533] [2023-11-28 23:44:54,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760412533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:54,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:44:54,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 23:44:54,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072632496] [2023-11-28 23:44:54,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:54,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:44:54,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:44:54,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:44:54,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:44:54,461 INFO L87 Difference]: Start difference. First operand has 2688 states, 1214 states have (on average 2.3196046128500822) internal successors, (2816), 2546 states have internal predecessors, (2816), 147 states have call successors, (147), 36 states have call predecessors, (147), 36 states have return successors, (147), 143 states have call predecessors, (147), 147 states have call successors, (147) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-28 23:45:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:45:06,959 INFO L93 Difference]: Finished difference Result 3047 states and 3471 transitions. [2023-11-28 23:45:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:45:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-28 23:45:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:45:06,994 INFO L225 Difference]: With dead ends: 3047 [2023-11-28 23:45:06,994 INFO L226 Difference]: Without dead ends: 3046 [2023-11-28 23:45:06,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:45:07,000 INFO L413 NwaCegarLoop]: 2449 mSDtfsCounter, 438 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:45:07,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 4000 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-11-28 23:45:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2023-11-28 23:45:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 2647. [2023-11-28 23:45:07,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 1192 states have (on average 2.296979865771812) internal successors, (2738), 2521 states have internal predecessors, (2738), 147 states have call successors, (147), 36 states have call predecessors, (147), 32 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-28 23:45:07,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 2983 transitions. [2023-11-28 23:45:07,155 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 2983 transitions. Word has length 2 [2023-11-28 23:45:07,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:45:07,156 INFO L495 AbstractCegarLoop]: Abstraction has 2647 states and 2983 transitions. [2023-11-28 23:45:07,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-28 23:45:07,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 2983 transitions. [2023-11-28 23:45:07,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-28 23:45:07,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:45:07,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-28 23:45:07,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:45:07,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:45:07,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:45:07,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:07,359 INFO L85 PathProgramCache]: Analyzing trace with hash 165516, now seen corresponding path program 1 times [2023-11-28 23:45:07,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:45:07,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702012382] [2023-11-28 23:45:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:07,362 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 [2023-11-28 23:45:07,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:45:07,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:45:07,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:45:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:09,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:45:09,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:09,703 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 [2023-11-28 23:45:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:09,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:45:09,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:45:09,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702012382] [2023-11-28 23:45:09,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702012382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:09,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:09,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 23:45:09,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724141948] [2023-11-28 23:45:09,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:09,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:45:09,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:45:09,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:45:09,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:45:09,728 INFO L87 Difference]: Start difference. First operand 2647 states and 2983 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-28 23:45:27,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:45:27,080 INFO L93 Difference]: Finished difference Result 2646 states and 2982 transitions. [2023-11-28 23:45:27,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:45:27,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-28 23:45:27,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:45:27,094 INFO L225 Difference]: With dead ends: 2646 [2023-11-28 23:45:27,094 INFO L226 Difference]: Without dead ends: 2646 [2023-11-28 23:45:27,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:45:27,096 INFO L413 NwaCegarLoop]: 2596 mSDtfsCounter, 9 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:45:27,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4250 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2023-11-28 23:45:27,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2023-11-28 23:45:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2646. [2023-11-28 23:45:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 1192 states have (on average 2.2961409395973154) internal successors, (2737), 2520 states have internal predecessors, (2737), 147 states have call successors, (147), 36 states have call predecessors, (147), 32 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-28 23:45:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 2982 transitions. [2023-11-28 23:45:27,155 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 2982 transitions. Word has length 2 [2023-11-28 23:45:27,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:45:27,155 INFO L495 AbstractCegarLoop]: Abstraction has 2646 states and 2982 transitions. [2023-11-28 23:45:27,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-28 23:45:27,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 2982 transitions. [2023-11-28 23:45:27,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-28 23:45:27,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:45:27,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-28 23:45:27,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-28 23:45:27,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:45:27,357 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:45:27,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash 161157580, now seen corresponding path program 1 times [2023-11-28 23:45:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:45:27,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361129936] [2023-11-28 23:45:27,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:27,360 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 [2023-11-28 23:45:27,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:45:27,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:45:27,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:45:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:29,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:45:29,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:29,711 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 [2023-11-28 23:45:29,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:29,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:45:29,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:45:29,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361129936] [2023-11-28 23:45:29,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361129936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:29,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:29,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:45:29,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839083125] [2023-11-28 23:45:29,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:29,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:45:29,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:45:29,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:45:29,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:45:29,805 INFO L87 Difference]: Start difference. First operand 2646 states and 2982 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:45:52,590 INFO L93 Difference]: Finished difference Result 2648 states and 2984 transitions. [2023-11-28 23:45:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:45:52,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-28 23:45:52,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:45:52,604 INFO L225 Difference]: With dead ends: 2648 [2023-11-28 23:45:52,604 INFO L226 Difference]: Without dead ends: 2648 [2023-11-28 23:45:52,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:45:52,606 INFO L413 NwaCegarLoop]: 2595 mSDtfsCounter, 9 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:45:52,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5904 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2023-11-28 23:45:52,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2023-11-28 23:45:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2648. [2023-11-28 23:45:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 1194 states have (on average 2.2939698492462313) internal successors, (2739), 2522 states have internal predecessors, (2739), 147 states have call successors, (147), 36 states have call predecessors, (147), 32 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-28 23:45:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 2984 transitions. [2023-11-28 23:45:52,676 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 2984 transitions. Word has length 4 [2023-11-28 23:45:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:45:52,677 INFO L495 AbstractCegarLoop]: Abstraction has 2648 states and 2984 transitions. [2023-11-28 23:45:52,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 2984 transitions. [2023-11-28 23:45:52,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-28 23:45:52,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:45:52,678 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-28 23:45:52,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-28 23:45:52,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:45:52,878 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:45:52,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:52,879 INFO L85 PathProgramCache]: Analyzing trace with hash 255699779, now seen corresponding path program 1 times [2023-11-28 23:45:52,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:45:52,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453669544] [2023-11-28 23:45:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:52,882 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 [2023-11-28 23:45:52,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:45:52,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:45:52,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:45:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:55,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:45:55,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:55,198 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 [2023-11-28 23:45:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:55,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:45:56,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:56,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:45:56,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453669544] [2023-11-28 23:45:56,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453669544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:45:56,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:45:56,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2023-11-28 23:45:56,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200543419] [2023-11-28 23:45:56,039 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:45:56,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:45:56,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:45:56,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:45:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:45:56,040 INFO L87 Difference]: Start difference. First operand 2648 states and 2984 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) [2023-11-28 23:47:15,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:15,240 INFO L93 Difference]: Finished difference Result 2650 states and 2986 transitions. [2023-11-28 23:47:15,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:47:15,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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 [2023-11-28 23:47:15,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:15,250 INFO L225 Difference]: With dead ends: 2650 [2023-11-28 23:47:15,250 INFO L226 Difference]: Without dead ends: 2650 [2023-11-28 23:47:15,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:47:15,251 INFO L413 NwaCegarLoop]: 2594 mSDtfsCounter, 19 mSDsluCounter, 6619 mSDsCounter, 0 mSdLazyCounter, 5682 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 9213 SdHoareTripleChecker+Invalid, 5687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:15,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 9213 Invalid, 5687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 5682 Invalid, 0 Unknown, 0 Unchecked, 78.9s Time] [2023-11-28 23:47:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2023-11-28 23:47:15,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2650. [2023-11-28 23:47:15,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 1197 states have (on average 2.289891395154553) internal successors, (2741), 2524 states have internal predecessors, (2741), 147 states have call successors, (147), 36 states have call predecessors, (147), 32 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-28 23:47:15,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 2986 transitions. [2023-11-28 23:47:15,310 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 2986 transitions. Word has length 6 [2023-11-28 23:47:15,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:15,311 INFO L495 AbstractCegarLoop]: Abstraction has 2650 states and 2986 transitions. [2023-11-28 23:47:15,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) [2023-11-28 23:47:15,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 2986 transitions. [2023-11-28 23:47:15,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-28 23:47:15,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:15,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-11-28 23:47:15,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-28 23:47:15,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:47:15,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:47:15,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:15,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1384228131, now seen corresponding path program 1 times [2023-11-28 23:47:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:47:15,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669382271] [2023-11-28 23:47:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:47:15,515 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 [2023-11-28 23:47:15,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:47:15,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:47:15,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-28 23:47:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:47:17,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:47:17,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:47:17,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:47:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:47:18,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:47:18,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669382271] [2023-11-28 23:47:18,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669382271] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:47:18,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:47:18,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-28 23:47:18,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790496065] [2023-11-28 23:47:18,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:47:18,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:47:18,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:47:18,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:47:18,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:47:18,015 INFO L87 Difference]: Start difference. First operand 2650 states and 2986 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 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) [2023-11-28 23:47:30,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:47:30,838 INFO L93 Difference]: Finished difference Result 2660 states and 2996 transitions. [2023-11-28 23:47:30,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:47:30,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 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) Word has length 11 [2023-11-28 23:47:30,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:47:30,848 INFO L225 Difference]: With dead ends: 2660 [2023-11-28 23:47:30,848 INFO L226 Difference]: Without dead ends: 2660 [2023-11-28 23:47:30,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:47:30,849 INFO L413 NwaCegarLoop]: 2598 mSDtfsCounter, 5 mSDsluCounter, 10384 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12982 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:47:30,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12982 Invalid, 1954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-11-28 23:47:30,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2023-11-28 23:47:30,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2660. [2023-11-28 23:47:30,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2660 states, 1207 states have (on average 2.27920463960232) internal successors, (2751), 2534 states have internal predecessors, (2751), 147 states have call successors, (147), 36 states have call predecessors, (147), 32 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2023-11-28 23:47:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2660 states to 2660 states and 2996 transitions. [2023-11-28 23:47:30,899 INFO L78 Accepts]: Start accepts. Automaton has 2660 states and 2996 transitions. Word has length 11 [2023-11-28 23:47:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:47:30,899 INFO L495 AbstractCegarLoop]: Abstraction has 2660 states and 2996 transitions. [2023-11-28 23:47:30,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 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) [2023-11-28 23:47:30,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2660 states and 2996 transitions. [2023-11-28 23:47:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 23:47:30,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:47:30,900 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-11-28 23:47:30,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-28 23:47:31,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:47:31,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:47:31,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:47:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 918251946, now seen corresponding path program 2 times [2023-11-28 23:47:31,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:47:31,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210754597] [2023-11-28 23:47:31,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:47:31,116 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 [2023-11-28 23:47:31,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:47:31,118 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:47:31,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (7)] Waiting until timeout for monitored process [2023-11-28 23:47:38,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:47:38,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:47:39,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:47:39,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:47:39,141 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-28 23:47:39,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-28 23:47:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-28 23:47:39,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:47:39,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:47:39,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210754597] [2023-11-28 23:47:39,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210754597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:47:39,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:47:39,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 23:47:39,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712333120] [2023-11-28 23:47:39,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:39,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:47:39,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:47:39,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:47:39,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:47:39,552 INFO L87 Difference]: Start difference. First operand 2660 states and 2996 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-28 23:48:11,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:11,758 INFO L93 Difference]: Finished difference Result 4549 states and 5133 transitions. [2023-11-28 23:48:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:48:11,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 21 [2023-11-28 23:48:11,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:11,780 INFO L225 Difference]: With dead ends: 4549 [2023-11-28 23:48:11,781 INFO L226 Difference]: Without dead ends: 4549 [2023-11-28 23:48:11,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:48:11,782 INFO L413 NwaCegarLoop]: 2137 mSDtfsCounter, 2111 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 2540 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:11,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 3734 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2540 Invalid, 0 Unknown, 0 Unchecked, 32.1s Time] [2023-11-28 23:48:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2023-11-28 23:48:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 3517. [2023-11-28 23:48:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3517 states, 1978 states have (on average 2.3109201213346813) internal successors, (4571), 3330 states have internal predecessors, (4571), 222 states have call successors, (222), 62 states have call predecessors, (222), 46 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:48:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3517 states to 3517 states and 4950 transitions. [2023-11-28 23:48:11,870 INFO L78 Accepts]: Start accepts. Automaton has 3517 states and 4950 transitions. Word has length 21 [2023-11-28 23:48:11,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:11,870 INFO L495 AbstractCegarLoop]: Abstraction has 3517 states and 4950 transitions. [2023-11-28 23:48:11,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-28 23:48:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3517 states and 4950 transitions. [2023-11-28 23:48:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 23:48:11,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:11,871 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-11-28 23:48:11,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (7)] Ended with exit code 0 [2023-11-28 23:48:12,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:48:12,072 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:48:12,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:12,072 INFO L85 PathProgramCache]: Analyzing trace with hash 918251947, now seen corresponding path program 1 times [2023-11-28 23:48:12,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:48:12,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67346082] [2023-11-28 23:48:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:12,074 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 [2023-11-28 23:48:12,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:48:12,075 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:48:12,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Waiting until timeout for monitored process [2023-11-28 23:48:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:48:14,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 1992 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 23:48:14,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:48:14,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:48:15,218 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:48:15,218 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:48:15,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67346082] [2023-11-28 23:48:15,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67346082] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:48:15,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:48:15,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-28 23:48:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820366701] [2023-11-28 23:48:15,219 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:48:15,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 23:48:15,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:48:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 23:48:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:48:15,220 INFO L87 Difference]: Start difference. First operand 3517 states and 4950 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 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) [2023-11-28 23:48:40,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:48:40,375 INFO L93 Difference]: Finished difference Result 3521 states and 4954 transitions. [2023-11-28 23:48:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:48:40,375 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 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 21 [2023-11-28 23:48:40,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:48:40,390 INFO L225 Difference]: With dead ends: 3521 [2023-11-28 23:48:40,390 INFO L226 Difference]: Without dead ends: 3521 [2023-11-28 23:48:40,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:48:40,391 INFO L413 NwaCegarLoop]: 2597 mSDtfsCounter, 3 mSDsluCounter, 25950 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 28547 SdHoareTripleChecker+Invalid, 4372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:48:40,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 28547 Invalid, 4372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 24.9s Time] [2023-11-28 23:48:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3521 states. [2023-11-28 23:48:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3521 to 3521. [2023-11-28 23:48:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3521 states, 1982 states have (on average 2.3082744702320888) internal successors, (4575), 3334 states have internal predecessors, (4575), 222 states have call successors, (222), 62 states have call predecessors, (222), 46 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:48:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3521 states to 3521 states and 4954 transitions. [2023-11-28 23:48:40,467 INFO L78 Accepts]: Start accepts. Automaton has 3521 states and 4954 transitions. Word has length 21 [2023-11-28 23:48:40,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:48:40,467 INFO L495 AbstractCegarLoop]: Abstraction has 3521 states and 4954 transitions. [2023-11-28 23:48:40,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 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) [2023-11-28 23:48:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3521 states and 4954 transitions. [2023-11-28 23:48:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-28 23:48:40,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:48:40,468 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2023-11-28 23:48:40,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (8)] Forceful destruction successful, exit code 0 [2023-11-28 23:48:40,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:48:40,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:48:40,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1640331837, now seen corresponding path program 2 times [2023-11-28 23:48:40,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:48:40,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594386671] [2023-11-28 23:48:40,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:48:40,671 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 [2023-11-28 23:48:40,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:48:40,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:48:40,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (9)] Waiting until timeout for monitored process [2023-11-28 23:48:49,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:48:49,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:48:49,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:48:49,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:48:49,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:48:49,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-28 23:48:49,894 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:48:49,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:48:49,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:48:49,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594386671] [2023-11-28 23:48:49,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594386671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:48:49,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:48:49,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 23:48:49,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513479733] [2023-11-28 23:48:49,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:48:49,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:48:49,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:48:49,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:48:49,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:48:49,896 INFO L87 Difference]: Start difference. First operand 3521 states and 4954 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-28 23:49:07,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:49:07,783 INFO L93 Difference]: Finished difference Result 3524 states and 4956 transitions. [2023-11-28 23:49:07,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:49:07,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 25 [2023-11-28 23:49:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:49:07,800 INFO L225 Difference]: With dead ends: 3524 [2023-11-28 23:49:07,800 INFO L226 Difference]: Without dead ends: 3524 [2023-11-28 23:49:07,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:49:07,801 INFO L413 NwaCegarLoop]: 2596 mSDtfsCounter, 6 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4256 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:49:07,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4256 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 17.8s Time] [2023-11-28 23:49:07,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3524 states. [2023-11-28 23:49:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3524 to 3524. [2023-11-28 23:49:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 1985 states have (on average 2.305793450881612) internal successors, (4577), 3336 states have internal predecessors, (4577), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:49:07,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4956 transitions. [2023-11-28 23:49:07,854 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4956 transitions. Word has length 25 [2023-11-28 23:49:07,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:49:07,854 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 4956 transitions. [2023-11-28 23:49:07,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-28 23:49:07,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4956 transitions. [2023-11-28 23:49:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-28 23:49:07,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:49:07,855 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:49:07,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (9)] Ended with exit code 0 [2023-11-28 23:49:08,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:49:08,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:49:08,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:49:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1515359413, now seen corresponding path program 1 times [2023-11-28 23:49:08,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:49:08,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56439656] [2023-11-28 23:49:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:49:08,059 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 [2023-11-28 23:49:08,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:49:08,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:49:08,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (10)] Waiting until timeout for monitored process [2023-11-28 23:49:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:49:24,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:49:24,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:49:24,816 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-28 23:49:24,816 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 1 case distinctions, treesize of input 9 treesize of output 15 [2023-11-28 23:49:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:49:24,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:49:24,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:49:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56439656] [2023-11-28 23:49:24,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56439656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:49:24,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:49:24,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:49:24,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372157776] [2023-11-28 23:49:24,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:49:24,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:49:24,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:49:24,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:49:24,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:49:24,855 INFO L87 Difference]: Start difference. First operand 3524 states and 4956 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:49:52,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:49:52,962 INFO L93 Difference]: Finished difference Result 3795 states and 5187 transitions. [2023-11-28 23:49:52,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:49:52,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2023-11-28 23:49:52,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:49:52,973 INFO L225 Difference]: With dead ends: 3795 [2023-11-28 23:49:52,973 INFO L226 Difference]: Without dead ends: 3795 [2023-11-28 23:49:52,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:49:52,974 INFO L413 NwaCegarLoop]: 2446 mSDtfsCounter, 423 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:49:52,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 4003 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 28.0s Time] [2023-11-28 23:49:52,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2023-11-28 23:49:53,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3519. [2023-11-28 23:49:53,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 1985 states have (on average 2.3032745591939547) internal successors, (4572), 3331 states have internal predecessors, (4572), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:49:53,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 4951 transitions. [2023-11-28 23:49:53,024 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 4951 transitions. Word has length 32 [2023-11-28 23:49:53,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:49:53,024 INFO L495 AbstractCegarLoop]: Abstraction has 3519 states and 4951 transitions. [2023-11-28 23:49:53,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:49:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 4951 transitions. [2023-11-28 23:49:53,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-28 23:49:53,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:49:53,026 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:49:53,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (10)] Ended with exit code 0 [2023-11-28 23:49:53,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:49:53,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:49:53,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:49:53,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1515359414, now seen corresponding path program 1 times [2023-11-28 23:49:53,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:49:53,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1666165025] [2023-11-28 23:49:53,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:49:53,229 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 [2023-11-28 23:49:53,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:49:53,230 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:49:53,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (11)] Waiting until timeout for monitored process [2023-11-28 23:50:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:50:08,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:50:08,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:50:09,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:50:09,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-28 23:50:09,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-28 23:50:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:50:09,120 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:50:09,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:50:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1666165025] [2023-11-28 23:50:09,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1666165025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:50:09,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:50:09,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:50:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11348389] [2023-11-28 23:50:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:50:09,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:50:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:50:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:50:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:50:09,122 INFO L87 Difference]: Start difference. First operand 3519 states and 4951 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:50:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:50:23,887 INFO L93 Difference]: Finished difference Result 3520 states and 4953 transitions. [2023-11-28 23:50:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:50:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2023-11-28 23:50:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:50:23,899 INFO L225 Difference]: With dead ends: 3520 [2023-11-28 23:50:23,899 INFO L226 Difference]: Without dead ends: 3520 [2023-11-28 23:50:23,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:50:23,900 INFO L413 NwaCegarLoop]: 2573 mSDtfsCounter, 718 mSDsluCounter, 7428 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 10001 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:50:23,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 10001 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2023-11-28 23:50:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2023-11-28 23:50:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 3518. [2023-11-28 23:50:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3518 states, 1985 states have (on average 2.3027707808564233) internal successors, (4571), 3330 states have internal predecessors, (4571), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:50:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 4950 transitions. [2023-11-28 23:50:23,952 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 4950 transitions. Word has length 32 [2023-11-28 23:50:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:50:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 3518 states and 4950 transitions. [2023-11-28 23:50:23,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:50:23,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 4950 transitions. [2023-11-28 23:50:23,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-28 23:50:23,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:50:23,954 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:50:23,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (11)] Forceful destruction successful, exit code 0 [2023-11-28 23:50:24,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:50:24,156 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:50:24,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:50:24,157 INFO L85 PathProgramCache]: Analyzing trace with hash 268594564, now seen corresponding path program 1 times [2023-11-28 23:50:24,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:50:24,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305095984] [2023-11-28 23:50:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:50:24,159 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 [2023-11-28 23:50:24,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:50:24,160 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:50:24,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (12)] Waiting until timeout for monitored process [2023-11-28 23:50:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:50:35,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:50:35,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:50:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:50:35,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-28 23:50:35,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-28 23:50:35,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:50:35,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-28 23:50:35,879 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 23:50:35,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 23:50:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:50:36,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:50:36,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:50:36,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305095984] [2023-11-28 23:50:36,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305095984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:50:36,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:50:36,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:50:36,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120607493] [2023-11-28 23:50:36,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:50:36,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:50:36,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:50:36,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:50:36,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:50:36,014 INFO L87 Difference]: Start difference. First operand 3518 states and 4950 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:51:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:51:34,943 INFO L93 Difference]: Finished difference Result 3536 states and 4970 transitions. [2023-11-28 23:51:34,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:51:34,944 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-28 23:51:34,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:51:34,950 INFO L225 Difference]: With dead ends: 3536 [2023-11-28 23:51:34,950 INFO L226 Difference]: Without dead ends: 3536 [2023-11-28 23:51:34,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:51:34,951 INFO L413 NwaCegarLoop]: 2565 mSDtfsCounter, 766 mSDsluCounter, 10274 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 12839 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:51:34,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 12839 Invalid, 4228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 58.6s Time] [2023-11-28 23:51:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2023-11-28 23:51:34,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3527. [2023-11-28 23:51:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 1994 states have (on average 2.3004012036108326) internal successors, (4587), 3339 states have internal predecessors, (4587), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:51:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 4966 transitions. [2023-11-28 23:51:35,003 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 4966 transitions. Word has length 34 [2023-11-28 23:51:35,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:51:35,004 INFO L495 AbstractCegarLoop]: Abstraction has 3527 states and 4966 transitions. [2023-11-28 23:51:35,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:51:35,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 4966 transitions. [2023-11-28 23:51:35,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-28 23:51:35,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:51:35,005 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:51:35,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (12)] Ended with exit code 0 [2023-11-28 23:51:35,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:51:35,205 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:51:35,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:51:35,206 INFO L85 PathProgramCache]: Analyzing trace with hash 423443693, now seen corresponding path program 1 times [2023-11-28 23:51:35,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:51:35,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825365859] [2023-11-28 23:51:35,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:51:35,208 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 [2023-11-28 23:51:35,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:51:35,209 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:51:35,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (13)] Waiting until timeout for monitored process [2023-11-28 23:51:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:51:50,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:51:50,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:51:50,841 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 [2023-11-28 23:51:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:51:50,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-28 23:51:50,906 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-28 23:51:50,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-28 23:51:50,951 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:51:50,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:51:50,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:51:50,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825365859] [2023-11-28 23:51:50,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825365859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:51:50,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:51:50,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:51:50,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815286006] [2023-11-28 23:51:50,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:51:50,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:51:50,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:51:50,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:51:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:51:50,953 INFO L87 Difference]: Start difference. First operand 3527 states and 4966 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:52:03,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:03,514 INFO L93 Difference]: Finished difference Result 3802 states and 5200 transitions. [2023-11-28 23:52:03,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:52:03,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-28 23:52:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:03,521 INFO L225 Difference]: With dead ends: 3802 [2023-11-28 23:52:03,521 INFO L226 Difference]: Without dead ends: 3802 [2023-11-28 23:52:03,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:52:03,522 INFO L413 NwaCegarLoop]: 2448 mSDtfsCounter, 423 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:03,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 4000 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-11-28 23:52:03,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2023-11-28 23:52:03,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3526. [2023-11-28 23:52:03,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 1994 states have (on average 2.2993981945837514) internal successors, (4585), 3338 states have internal predecessors, (4585), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:52:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 4964 transitions. [2023-11-28 23:52:03,563 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 4964 transitions. Word has length 36 [2023-11-28 23:52:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:03,563 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 4964 transitions. [2023-11-28 23:52:03,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:52:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 4964 transitions. [2023-11-28 23:52:03,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-28 23:52:03,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:03,564 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:03,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (13)] Forceful destruction successful, exit code 0 [2023-11-28 23:52:03,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:52:03,770 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:52:03,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash 423443694, now seen corresponding path program 1 times [2023-11-28 23:52:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:52:03,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110883536] [2023-11-28 23:52:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:03,774 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 [2023-11-28 23:52:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:52:03,775 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:52:03,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (14)] Waiting until timeout for monitored process [2023-11-28 23:52:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:19,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 23:52:19,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:19,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-28 23:52:19,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 23:52:19,780 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 11 treesize of output 10 [2023-11-28 23:52:19,807 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 [2023-11-28 23:52:20,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:52:20,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-28 23:52:20,119 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 23:52:20,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 23:52:20,328 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:52:20,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:20,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:52:20,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110883536] [2023-11-28 23:52:20,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110883536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:20,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:20,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:52:20,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177032618] [2023-11-28 23:52:20,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:20,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:52:20,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:52:20,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:52:20,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:52:20,330 INFO L87 Difference]: Start difference. First operand 3526 states and 4964 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:53:41,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:53:41,485 INFO L93 Difference]: Finished difference Result 3807 states and 5200 transitions. [2023-11-28 23:53:41,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:53:41,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2023-11-28 23:53:41,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:53:41,492 INFO L225 Difference]: With dead ends: 3807 [2023-11-28 23:53:41,492 INFO L226 Difference]: Without dead ends: 3807 [2023-11-28 23:53:41,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:53:41,493 INFO L413 NwaCegarLoop]: 2339 mSDtfsCounter, 1580 mSDsluCounter, 9058 mSDsCounter, 0 mSdLazyCounter, 6097 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 11397 SdHoareTripleChecker+Invalid, 6163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 6097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:53:41,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 11397 Invalid, 6163 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 6097 Invalid, 0 Unknown, 0 Unchecked, 80.7s Time] [2023-11-28 23:53:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2023-11-28 23:53:41,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3526. [2023-11-28 23:53:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 1994 states have (on average 2.298896690070211) internal successors, (4584), 3338 states have internal predecessors, (4584), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:53:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 4963 transitions. [2023-11-28 23:53:41,536 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 4963 transitions. Word has length 36 [2023-11-28 23:53:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:53:41,536 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 4963 transitions. [2023-11-28 23:53:41,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:53:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 4963 transitions. [2023-11-28 23:53:41,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-28 23:53:41,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:53:41,537 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:53:41,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (14)] Ended with exit code 0 [2023-11-28 23:53:41,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:53:41,737 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:53:41,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:53:41,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1090402318, now seen corresponding path program 1 times [2023-11-28 23:53:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:53:41,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547036898] [2023-11-28 23:53:41,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:53:41,741 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 [2023-11-28 23:53:41,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:53:41,742 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:53:41,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (15)] Waiting until timeout for monitored process [2023-11-28 23:53:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:53:57,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:53:57,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:53:57,907 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 [2023-11-28 23:53:57,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-11-28 23:53:58,148 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:53:58,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 28 [2023-11-28 23:53:58,255 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-28 23:53:58,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 14 [2023-11-28 23:53:58,295 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:53:58,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:53:58,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:53:58,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547036898] [2023-11-28 23:53:58,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547036898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:53:58,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:53:58,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:53:58,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399993182] [2023-11-28 23:53:58,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:53:58,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:53:58,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:53:58,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:53:58,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:53:58,297 INFO L87 Difference]: Start difference. First operand 3526 states and 4963 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:54:10,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-28 23:54:42,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:42,736 INFO L93 Difference]: Finished difference Result 3523 states and 4959 transitions. [2023-11-28 23:54:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:54:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2023-11-28 23:54:42,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:42,745 INFO L225 Difference]: With dead ends: 3523 [2023-11-28 23:54:42,745 INFO L226 Difference]: Without dead ends: 3523 [2023-11-28 23:54:42,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:54:42,746 INFO L413 NwaCegarLoop]: 2574 mSDtfsCounter, 715 mSDsluCounter, 5490 mSDsCounter, 0 mSdLazyCounter, 3805 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 8064 SdHoareTripleChecker+Invalid, 3809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3805 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:42,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 8064 Invalid, 3809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3805 Invalid, 1 Unknown, 0 Unchecked, 44.2s Time] [2023-11-28 23:54:42,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2023-11-28 23:54:42,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3523. [2023-11-28 23:54:42,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 1994 states have (on average 2.296890672016048) internal successors, (4580), 3335 states have internal predecessors, (4580), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:54:42,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4959 transitions. [2023-11-28 23:54:42,793 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4959 transitions. Word has length 38 [2023-11-28 23:54:42,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:42,793 INFO L495 AbstractCegarLoop]: Abstraction has 3523 states and 4959 transitions. [2023-11-28 23:54:42,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:54:42,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4959 transitions. [2023-11-28 23:54:42,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-28 23:54:42,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:42,795 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:42,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (15)] Ended with exit code 0 [2023-11-28 23:54:42,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:54:42,996 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:54:42,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1090402317, now seen corresponding path program 1 times [2023-11-28 23:54:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:54:42,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991400285] [2023-11-28 23:54:42,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:42,998 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 [2023-11-28 23:54:42,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:54:42,999 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:54:43,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (16)] Waiting until timeout for monitored process [2023-11-28 23:54:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:58,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-28 23:54:58,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:58,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-28 23:54:58,107 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 [2023-11-28 23:54:58,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-28 23:54:58,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-28 23:54:58,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2023-11-28 23:54:58,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2023-11-28 23:54:58,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 9 [2023-11-28 23:54:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:54:58,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:54:58,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:54:58,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991400285] [2023-11-28 23:54:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991400285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:58,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:58,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:54:58,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913639961] [2023-11-28 23:54:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:58,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:54:58,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:54:58,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:54:58,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:54:58,455 INFO L87 Difference]: Start difference. First operand 3523 states and 4959 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:55:10,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:55:14,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:55:49,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:49,747 INFO L93 Difference]: Finished difference Result 3522 states and 4957 transitions. [2023-11-28 23:55:49,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:55:49,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2023-11-28 23:55:49,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:49,754 INFO L225 Difference]: With dead ends: 3522 [2023-11-28 23:55:49,755 INFO L226 Difference]: Without dead ends: 3522 [2023-11-28 23:55:49,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:55:49,755 INFO L413 NwaCegarLoop]: 2567 mSDtfsCounter, 705 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 9294 SdHoareTripleChecker+Invalid, 4776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:49,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 9294 Invalid, 4776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4773 Invalid, 2 Unknown, 0 Unchecked, 51.0s Time] [2023-11-28 23:55:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2023-11-28 23:55:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3522. [2023-11-28 23:55:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 1994 states have (on average 2.295887662988967) internal successors, (4578), 3334 states have internal predecessors, (4578), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:55:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4957 transitions. [2023-11-28 23:55:49,799 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4957 transitions. Word has length 38 [2023-11-28 23:55:49,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:49,799 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 4957 transitions. [2023-11-28 23:55:49,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:55:49,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4957 transitions. [2023-11-28 23:55:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-28 23:55:49,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:49,801 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:49,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (16)] Ended with exit code 0 [2023-11-28 23:55:50,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:55:50,006 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:55:50,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:50,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1272736796, now seen corresponding path program 1 times [2023-11-28 23:55:50,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:50,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370253406] [2023-11-28 23:55:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:50,008 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 [2023-11-28 23:55:50,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:50,009 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:55:50,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (17)] Waiting until timeout for monitored process [2023-11-28 23:56:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:56:13,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:56:13,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:56:13,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-28 23:56:13,455 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-28 23:56:13,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-28 23:56:13,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-28 23:56:13,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2023-11-28 23:56:13,919 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-28 23:56:13,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2023-11-28 23:56:13,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2023-11-28 23:56:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:56:14,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:56:14,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:56:14,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370253406] [2023-11-28 23:56:14,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370253406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:56:14,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:56:14,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 23:56:14,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867137692] [2023-11-28 23:56:14,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:56:14,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:56:14,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:56:14,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:56:14,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:56:14,110 INFO L87 Difference]: Start difference. First operand 3522 states and 4957 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:56:28,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:56:32,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:57:19,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:57:19,499 INFO L93 Difference]: Finished difference Result 3807 states and 5205 transitions. [2023-11-28 23:57:19,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:57:19,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2023-11-28 23:57:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:57:19,506 INFO L225 Difference]: With dead ends: 3807 [2023-11-28 23:57:19,506 INFO L226 Difference]: Without dead ends: 3807 [2023-11-28 23:57:19,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:57:19,507 INFO L413 NwaCegarLoop]: 2430 mSDtfsCounter, 1121 mSDsluCounter, 6711 mSDsCounter, 0 mSdLazyCounter, 5371 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 9141 SdHoareTripleChecker+Invalid, 5401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 5371 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:57:19,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 9141 Invalid, 5401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 5371 Invalid, 2 Unknown, 0 Unchecked, 65.0s Time] [2023-11-28 23:57:19,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2023-11-28 23:57:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3528. [2023-11-28 23:57:19,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 2000 states have (on average 2.2945) internal successors, (4589), 3340 states have internal predecessors, (4589), 222 states have call successors, (222), 63 states have call predecessors, (222), 47 states have return successors, (157), 129 states have call predecessors, (157), 155 states have call successors, (157) [2023-11-28 23:57:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4968 transitions. [2023-11-28 23:57:19,556 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4968 transitions. Word has length 41 [2023-11-28 23:57:19,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:57:19,556 INFO L495 AbstractCegarLoop]: Abstraction has 3528 states and 4968 transitions. [2023-11-28 23:57:19,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:57:19,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4968 transitions. [2023-11-28 23:57:19,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-28 23:57:19,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:57:19,558 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:57:19,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (17)] Ended with exit code 0 [2023-11-28 23:57:19,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:57:19,759 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, #Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 1290 more)] === [2023-11-28 23:57:19,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:57:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1272736795, now seen corresponding path program 1 times [2023-11-28 23:57:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:57:19,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172391495] [2023-11-28 23:57:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:57:19,763 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 [2023-11-28 23:57:19,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:57:19,764 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:57:19,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8eed16-b267-4b2c-931a-d69a2c0d95ee/bin/uautomizer-verify-BQ2R08f2Ya/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 (18)] Waiting until timeout for monitored process [2023-11-28 23:57:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:57:38,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:57:38,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:57:38,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-28 23:57:38,797 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 [2023-11-28 23:57:38,842 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 23:57:38,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 23:57:38,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-28 23:57:38,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-28 23:57:39,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2023-11-28 23:57:39,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2023-11-28 23:57:39,425 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-28 23:57:39,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 75 [2023-11-28 23:57:39,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 16 [2023-11-28 23:57:39,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 13 [2023-11-28 23:57:39,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2023-11-28 23:57:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-28 23:57:39,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:57:39,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:57:39,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172391495] [2023-11-28 23:57:39,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172391495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:57:39,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:57:39,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-28 23:57:39,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838008585] [2023-11-28 23:57:39,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:57:39,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:57:39,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:57:39,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:57:39,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:57:39,740 INFO L87 Difference]: Start difference. First operand 3528 states and 4968 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:57:57,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:58:01,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:58:05,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-28 23:58:09,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []