./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uname-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 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_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uname-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx --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 64052bfdc5bf6f2a2ba50127e6f4ecf4f822ad11dffb4513d5356b1e12bd4cd0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:42,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:42,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-21 22:07:42,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:42,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:42,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:42,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:42,710 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:42,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:42,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:42,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:42,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:42,719 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:42,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:42,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:42,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:42,722 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:07:42,723 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:07:42,723 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:07:42,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:42,724 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:07:42,725 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:42,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:42,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:42,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:42,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:42,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:42,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:42,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:42,730 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:42,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:42,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:42,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:42,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:42,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:42,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:42,733 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_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64052bfdc5bf6f2a2ba50127e6f4ecf4f822ad11dffb4513d5356b1e12bd4cd0 [2023-11-21 22:07:43,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:43,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:43,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:43,090 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:43,091 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:43,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-21 22:07:46,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:46,765 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:46,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-21 22:07:46,816 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data/9e62aadfd/dc16dddeb44c429ab3877cd78a2f290b/FLAG8599b76b0 [2023-11-21 22:07:46,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data/9e62aadfd/dc16dddeb44c429ab3877cd78a2f290b [2023-11-21 22:07:46,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:46,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:46,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:46,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:46,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:46,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:46" (1/1) ... [2023-11-21 22:07:46,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46002ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:46, skipping insertion in model container [2023-11-21 22:07:46,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:46" (1/1) ... [2023-11-21 22:07:46,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:48,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:48,634 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) [2023-11-21 22:07:48,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fd56591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:48, skipping insertion in model container [2023-11-21 22:07:48,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:48,635 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:07:48,638 INFO L158 Benchmark]: Toolchain (without parser) took 1793.40ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 83.7MB in the beginning and 128.8MB in the end (delta: -45.2MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-21 22:07:48,639 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 132.1MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:07:48,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1788.47ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 83.7MB in the beginning and 128.8MB in the end (delta: -45.2MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-21 22:07:48,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 132.1MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1788.47ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 83.7MB in the beginning and 128.8MB in the end (delta: -45.2MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2228]: 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_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uname-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx --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 64052bfdc5bf6f2a2ba50127e6f4ecf4f822ad11dffb4513d5356b1e12bd4cd0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:51,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:51,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-21 22:07:51,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:51,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:51,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:51,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:51,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:51,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:51,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:51,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:51,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:51,395 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:51,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:51,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:51,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:51,398 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:07:51,398 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:07:51,399 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:07:51,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:51,401 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:07:51,401 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:07:51,402 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:07:51,402 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:51,403 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:51,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:51,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:51,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:51,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:51,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:51,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:51,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:51,407 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:07:51,408 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:07:51,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:51,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:51,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:51,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:51,409 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:07:51,411 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_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64052bfdc5bf6f2a2ba50127e6f4ecf4f822ad11dffb4513d5356b1e12bd4cd0 [2023-11-21 22:07:51,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:51,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:51,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:51,905 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:51,906 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:51,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-21 22:07:55,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:55,728 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:55,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-21 22:07:55,766 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data/74fe76e36/a2e21e71f5fc4dddb1000dee0fdb6f8f/FLAGed9f06958 [2023-11-21 22:07:55,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/data/74fe76e36/a2e21e71f5fc4dddb1000dee0fdb6f8f [2023-11-21 22:07:55,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:55,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:55,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:55,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:55,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:55,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:55" (1/1) ... [2023-11-21 22:07:55,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6f153a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:55, skipping insertion in model container [2023-11-21 22:07:55,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:55" (1/1) ... [2023-11-21 22:07:55,876 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:57,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:57,423 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:07:57,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:57,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:57,692 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:57,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:58,201 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:58,201 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:58,202 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:58,202 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:58,210 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:58,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58 WrapperNode [2023-11-21 22:07:58,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:58,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:58,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:58,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:58,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,433 INFO L138 Inliner]: procedures = 585, calls = 556, calls flagged for inlining = 24, calls inlined = 22, statements flattened = 1630 [2023-11-21 22:07:58,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:58,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:58,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:58,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:58,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:58,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:58,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:58,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:58,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (1/1) ... [2023-11-21 22:07:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:58,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:58,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:58,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-21 22:07:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:07:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-21 22:07:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:07:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-21 22:07:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-21 22:07:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-21 22:07:58,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:07:58,798 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-21 22:07:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:07:58,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-21 22:07:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-21 22:07:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-21 22:07:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-21 22:07:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:07:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 22:07:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 22:07:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-21 22:07:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-21 22:07:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:07:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:07:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-21 22:07:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:07:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:07:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:07:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:07:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:07:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:07:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:07:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-21 22:07:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-21 22:07:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:07:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:07:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-21 22:07:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-21 22:07:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-21 22:07:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-21 22:07:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 22:07:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-21 22:07:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-21 22:07:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-21 22:07:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-21 22:07:59,464 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:59,466 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:59,674 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-21 22:08:11,552 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:12,094 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:12,095 INFO L308 CfgBuilder]: Removed 33 assume(true) statements. [2023-11-21 22:08:12,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:12 BoogieIcfgContainer [2023-11-21 22:08:12,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:12,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:12,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:12,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:12,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:55" (1/3) ... [2023-11-21 22:08:12,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dab9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:12, skipping insertion in model container [2023-11-21 22:08:12,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:58" (2/3) ... [2023-11-21 22:08:12,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dab9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:12, skipping insertion in model container [2023-11-21 22:08:12,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:12" (3/3) ... [2023-11-21 22:08:12,109 INFO L112 eAbstractionObserver]: Analyzing ICFG uname-2.i [2023-11-21 22:08:12,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:12,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 442 error locations. [2023-11-21 22:08:12,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:12,215 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;@3f06b65c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:12,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 442 error locations. [2023-11-21 22:08:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 931 states, 460 states have (on average 2.282608695652174) internal successors, (1050), 901 states have internal predecessors, (1050), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-21 22:08:12,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:08:12,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:12,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:08:12,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 439 more)] === [2023-11-21 22:08:12,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash 65972, now seen corresponding path program 1 times [2023-11-21 22:08:12,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:12,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430594922] [2023-11-21 22:08:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:12,256 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 [2023-11-21 22:08:12,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:12,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:08:12,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:12,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:12,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:12,867 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 [2023-11-21 22:08:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:12,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:12,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:12,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430594922] [2023-11-21 22:08:12,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430594922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:12,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:12,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:08:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824522626] [2023-11-21 22:08:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:12,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:12,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:12,960 INFO L87 Difference]: Start difference. First operand has 931 states, 460 states have (on average 2.282608695652174) internal successors, (1050), 901 states have internal predecessors, (1050), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) 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) [2023-11-21 22:08:18,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:18,876 INFO L93 Difference]: Finished difference Result 1075 states and 1243 transitions. [2023-11-21 22:08:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:18,885 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 [2023-11-21 22:08:18,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:18,914 INFO L225 Difference]: With dead ends: 1075 [2023-11-21 22:08:18,914 INFO L226 Difference]: Without dead ends: 1074 [2023-11-21 22:08:18,916 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 [2023-11-21 22:08:18,920 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 356 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:18,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1274 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-21 22:08:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-11-21 22:08:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 921. [2023-11-21 22:08:19,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 456 states have (on average 2.2280701754385963) internal successors, (1016), 895 states have internal predecessors, (1016), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-21 22:08:19,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1060 transitions. [2023-11-21 22:08:19,043 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1060 transitions. Word has length 2 [2023-11-21 22:08:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:19,043 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1060 transitions. [2023-11-21 22:08:19,043 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) [2023-11-21 22:08:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1060 transitions. [2023-11-21 22:08:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:08:19,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:19,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:08:19,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:19,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:19,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 439 more)] === [2023-11-21 22:08:19,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 65973, now seen corresponding path program 1 times [2023-11-21 22:08:19,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:19,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033147444] [2023-11-21 22:08:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:19,258 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 [2023-11-21 22:08:19,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:19,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:08:19,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:19,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:08:19,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:19,872 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 [2023-11-21 22:08:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:19,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:19,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:19,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033147444] [2023-11-21 22:08:19,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033147444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:19,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:19,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:08:19,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045957983] [2023-11-21 22:08:19,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:19,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:19,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:19,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:19,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:19,924 INFO L87 Difference]: Start difference. First operand 921 states and 1060 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) [2023-11-21 22:08:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:27,675 INFO L93 Difference]: Finished difference Result 920 states and 1059 transitions. [2023-11-21 22:08:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:27,676 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 [2023-11-21 22:08:27,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:27,682 INFO L225 Difference]: With dead ends: 920 [2023-11-21 22:08:27,682 INFO L226 Difference]: Without dead ends: 920 [2023-11-21 22:08:27,683 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 [2023-11-21 22:08:27,684 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 8 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:27,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1508 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-21 22:08:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2023-11-21 22:08:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2023-11-21 22:08:27,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 456 states have (on average 2.2258771929824563) internal successors, (1015), 894 states have internal predecessors, (1015), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-21 22:08:27,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1059 transitions. [2023-11-21 22:08:27,721 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1059 transitions. Word has length 2 [2023-11-21 22:08:27,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:27,721 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1059 transitions. [2023-11-21 22:08:27,722 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) [2023-11-21 22:08:27,722 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1059 transitions. [2023-11-21 22:08:27,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:08:27,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:27,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:08:27,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:27,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:27,932 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 439 more)] === [2023-11-21 22:08:27,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash 65007699, now seen corresponding path program 1 times [2023-11-21 22:08:27,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:27,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528150711] [2023-11-21 22:08:27,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:27,937 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 [2023-11-21 22:08:27,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:27,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:08:27,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:28,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:08:28,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:28,419 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 [2023-11-21 22:08:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:28,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:28,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528150711] [2023-11-21 22:08:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528150711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:28,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:28,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:28,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061904712] [2023-11-21 22:08:28,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:28,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:28,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:28,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:28,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:28,564 INFO L87 Difference]: Start difference. First operand 920 states and 1059 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) [2023-11-21 22:08:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:36,198 INFO L93 Difference]: Finished difference Result 922 states and 1061 transitions. [2023-11-21 22:08:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:36,199 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 [2023-11-21 22:08:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:36,205 INFO L225 Difference]: With dead ends: 922 [2023-11-21 22:08:36,205 INFO L226 Difference]: Without dead ends: 922 [2023-11-21 22:08:36,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:36,207 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 8 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:36,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1508 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-11-21 22:08:36,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2023-11-21 22:08:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 922. [2023-11-21 22:08:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 458 states have (on average 2.2205240174672487) internal successors, (1017), 896 states have internal predecessors, (1017), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-21 22:08:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1061 transitions. [2023-11-21 22:08:36,237 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1061 transitions. Word has length 4 [2023-11-21 22:08:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:36,238 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1061 transitions. [2023-11-21 22:08:36,238 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) [2023-11-21 22:08:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1061 transitions. [2023-11-21 22:08:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:08:36,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:36,239 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-21 22:08:36,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:36,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:36,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 439 more)] === [2023-11-21 22:08:36,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:36,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1950509782, now seen corresponding path program 1 times [2023-11-21 22:08:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:36,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495332639] [2023-11-21 22:08:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:36,451 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 [2023-11-21 22:08:36,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:36,453 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:08:36,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_953d2ec1-2b4f-4484-b8d8-4c05663b1e01/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:08:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:36,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:08:36,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:36,900 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 [2023-11-21 22:08:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:37,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:37,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:37,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495332639] [2023-11-21 22:08:37,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495332639] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:37,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:08:37,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2023-11-21 22:08:37,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274807781] [2023-11-21 22:08:37,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:37,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:08:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:08:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:08:37,986 INFO L87 Difference]: Start difference. First operand 922 states and 1061 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)