./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/logname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/logname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6e2dc8873946fef7a19f9a424fb345eb43768fe38bdfc084307c2d557560dafb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:51,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:51,239 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-19 08:05:51,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:51,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:51,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:51,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:51,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:51,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:51,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:51,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:51,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:51,322 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:51,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:51,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:51,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:51,326 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:05:51,327 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:05:51,327 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:05:51,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:51,328 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:05:51,329 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:05:51,330 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:51,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:51,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:51,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:51,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:51,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:51,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:51,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:05:51,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:05:51,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:51,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:51,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:51,352 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:51,352 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_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e2dc8873946fef7a19f9a424fb345eb43768fe38bdfc084307c2d557560dafb [2023-11-19 08:05:51,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:51,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:51,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:51,723 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:51,723 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:51,725 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-19 08:05:54,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:55,348 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:55,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-19 08:05:55,394 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data/6e5ef6761/482bf7b57e244b7ebac5c11141e59b19/FLAG06aaddcca [2023-11-19 08:05:55,413 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data/6e5ef6761/482bf7b57e244b7ebac5c11141e59b19 [2023-11-19 08:05:55,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:55,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:55,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:55,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:55,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:55,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:55" (1/1) ... [2023-11-19 08:05:55,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e4e88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:55, skipping insertion in model container [2023-11-19 08:05:55,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:55" (1/1) ... [2023-11-19 08:05:55,544 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:56,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:56,887 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 08:05:56,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fed2d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:56, skipping insertion in model container [2023-11-19 08:05:56,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:56,889 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 08:05:56,891 INFO L158 Benchmark]: Toolchain (without parser) took 1468.52ms. Allocated memory is still 195.0MB. Free memory was 162.0MB in the beginning and 136.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 08:05:56,892 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:56,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1462.39ms. Allocated memory is still 195.0MB. Free memory was 162.0MB in the beginning and 136.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 08:05:56,895 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1462.39ms. Allocated memory is still 195.0MB. Free memory was 162.0MB in the beginning and 136.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2339]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/logname-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6e2dc8873946fef7a19f9a424fb345eb43768fe38bdfc084307c2d557560dafb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:59,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:59,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-19 08:05:59,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:59,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:59,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:59,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:59,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:59,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:59,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:59,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:59,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:59,750 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:59,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:59,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:59,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:59,753 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:05:59,754 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:05:59,754 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:05:59,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:59,755 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:05:59,756 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:05:59,756 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:05:59,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:05:59,757 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:59,758 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:59,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:59,759 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:59,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:59,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:59,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:59,762 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:05:59,763 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:05:59,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:59,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:59,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:59,764 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:05:59,765 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:59,765 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_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e2dc8873946fef7a19f9a424fb345eb43768fe38bdfc084307c2d557560dafb [2023-11-19 08:06:00,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:00,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:00,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:00,292 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:00,292 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:00,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-19 08:06:03,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:04,027 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:04,028 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-19 08:06:04,060 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data/b09768188/a7cdbb99a36d4d08ad6aefd5b38a1579/FLAG7b78c69e2 [2023-11-19 08:06:04,076 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/data/b09768188/a7cdbb99a36d4d08ad6aefd5b38a1579 [2023-11-19 08:06:04,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:04,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:04,082 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:04,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:04,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:04,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1a0565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:04, skipping insertion in model container [2023-11-19 08:06:04,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:04" (1/1) ... [2023-11-19 08:06:04,193 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:05,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:05,726 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 08:06:05,747 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:05,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:05,917 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:06,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:06,333 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:06:06,333 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:06:06,334 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:06:06,342 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:06,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06 WrapperNode [2023-11-19 08:06:06,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:06,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:06,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:06,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:06,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,502 INFO L138 Inliner]: procedures = 608, calls = 155, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 498 [2023-11-19 08:06:06,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:06,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:06,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:06,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:06,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:06,649 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:06,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:06,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:06,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (1/1) ... [2023-11-19 08:06:06,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:06,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:06,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:06,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 08:06:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:06:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:06:06,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 08:06:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:06:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 08:06:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:06:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 08:06:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 08:06:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 08:06:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 08:06:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 08:06:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 08:06:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 08:06:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 08:06:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 08:06:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 08:06:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:06:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:06:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:06:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:06:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2023-11-19 08:06:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2023-11-19 08:06:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 08:06:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 08:06:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 08:06:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 08:06:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 08:06:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 08:06:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 08:06:07,325 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:07,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:11,691 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:11,714 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:11,714 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-19 08:06:11,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:11 BoogieIcfgContainer [2023-11-19 08:06:11,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:11,729 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:11,729 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:11,733 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:11,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:04" (1/3) ... [2023-11-19 08:06:11,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7687a779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:11, skipping insertion in model container [2023-11-19 08:06:11,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:06" (2/3) ... [2023-11-19 08:06:11,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7687a779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:11, skipping insertion in model container [2023-11-19 08:06:11,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:11" (3/3) ... [2023-11-19 08:06:11,747 INFO L112 eAbstractionObserver]: Analyzing ICFG logname-1.i [2023-11-19 08:06:11,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:11,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 141 error locations. [2023-11-19 08:06:11,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:06:11,851 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;@37adcfb6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:06:11,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 141 error locations. [2023-11-19 08:06:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 206 states have (on average 1.8980582524271845) internal successors, (391), 347 states have internal predecessors, (391), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:06:11,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 08:06:11,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:11,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 08:06:11,869 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 138 more)] === [2023-11-19 08:06:11,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash 64612, now seen corresponding path program 1 times [2023-11-19 08:06:11,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:11,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557496479] [2023-11-19 08:06:11,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:11,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:11,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:11,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:11,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 08:06:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:12,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:06:12,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:12,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 08:06:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:12,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:12,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:12,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557496479] [2023-11-19 08:06:12,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557496479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:12,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:12,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:06:12,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102072739] [2023-11-19 08:06:12,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:12,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:06:12,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:12,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:06:12,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:12,236 INFO L87 Difference]: Start difference. First operand has 363 states, 206 states have (on average 1.8980582524271845) internal successors, (391), 347 states have internal predecessors, (391), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:13,688 INFO L93 Difference]: Finished difference Result 477 states and 534 transitions. [2023-11-19 08:06:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:06:13,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 08:06:13,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:13,705 INFO L225 Difference]: With dead ends: 477 [2023-11-19 08:06:13,705 INFO L226 Difference]: Without dead ends: 475 [2023-11-19 08:06:13,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:13,710 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 299 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:13,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 421 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 08:06:13,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-19 08:06:13,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 357. [2023-11-19 08:06:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 204 states have (on average 1.8284313725490196) internal successors, (373), 341 states have internal predecessors, (373), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:06:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 397 transitions. [2023-11-19 08:06:13,778 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 397 transitions. Word has length 3 [2023-11-19 08:06:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:13,778 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 397 transitions. [2023-11-19 08:06:13,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:13,779 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 397 transitions. [2023-11-19 08:06:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 08:06:13,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:13,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 08:06:13,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:13,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:13,980 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 138 more)] === [2023-11-19 08:06:13,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash 64613, now seen corresponding path program 1 times [2023-11-19 08:06:13,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:13,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407459160] [2023-11-19 08:06:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:13,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:13,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:14,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 08:06:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:14,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:06:14,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:14,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 08:06:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:14,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:14,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:14,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407459160] [2023-11-19 08:06:14,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407459160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:14,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:14,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:06:14,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586078318] [2023-11-19 08:06:14,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:14,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:06:14,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:14,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:06:14,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:14,250 INFO L87 Difference]: Start difference. First operand 357 states and 397 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:16,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:16,015 INFO L93 Difference]: Finished difference Result 356 states and 396 transitions. [2023-11-19 08:06:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:06:16,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 08:06:16,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:16,020 INFO L225 Difference]: With dead ends: 356 [2023-11-19 08:06:16,021 INFO L226 Difference]: Without dead ends: 356 [2023-11-19 08:06:16,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:16,022 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 13 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:16,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 638 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 08:06:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-19 08:06:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2023-11-19 08:06:16,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 204 states have (on average 1.8235294117647058) internal successors, (372), 340 states have internal predecessors, (372), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:06:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 396 transitions. [2023-11-19 08:06:16,047 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 396 transitions. Word has length 3 [2023-11-19 08:06:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:16,047 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 396 transitions. [2023-11-19 08:06:16,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:16,048 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 396 transitions. [2023-11-19 08:06:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 08:06:16,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:16,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:06:16,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:16,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:16,255 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 138 more)] === [2023-11-19 08:06:16,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:16,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1924867273, now seen corresponding path program 1 times [2023-11-19 08:06:16,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:16,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181925564] [2023-11-19 08:06:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:16,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:16,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:16,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:16,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 08:06:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:16,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:06:16,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:16,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 08:06:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:16,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:16,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:16,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181925564] [2023-11-19 08:06:16,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181925564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:16,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:16,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:06:16,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918074295] [2023-11-19 08:06:16,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:16,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:06:16,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:16,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:06:16,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:16,621 INFO L87 Difference]: Start difference. First operand 356 states and 396 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:18,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:18,940 INFO L93 Difference]: Finished difference Result 360 states and 400 transitions. [2023-11-19 08:06:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:06:18,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 08:06:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:18,945 INFO L225 Difference]: With dead ends: 360 [2023-11-19 08:06:18,945 INFO L226 Difference]: Without dead ends: 360 [2023-11-19 08:06:18,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:18,950 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 14 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:18,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 888 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 08:06:18,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-19 08:06:18,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 358. [2023-11-19 08:06:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 206 states have (on average 1.8155339805825244) internal successors, (374), 342 states have internal predecessors, (374), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:06:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 398 transitions. [2023-11-19 08:06:18,988 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 398 transitions. Word has length 6 [2023-11-19 08:06:18,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:18,988 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 398 transitions. [2023-11-19 08:06:18,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:18,989 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 398 transitions. [2023-11-19 08:06:18,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 08:06:18,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:18,989 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:18,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:19,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:19,192 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 138 more)] === [2023-11-19 08:06:19,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1550428788, now seen corresponding path program 1 times [2023-11-19 08:06:19,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:19,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030298854] [2023-11-19 08:06:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:19,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:19,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:19,203 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:19,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 08:06:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:19,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:06:19,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:19,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 08:06:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:19,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:06:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:20,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:20,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030298854] [2023-11-19 08:06:20,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030298854] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:06:20,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:06:20,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 08:06:20,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823090795] [2023-11-19 08:06:20,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:06:20,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:06:20,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:20,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:06:20,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:06:20,457 INFO L87 Difference]: Start difference. First operand 358 states and 398 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:28,081 INFO L93 Difference]: Finished difference Result 364 states and 404 transitions. [2023-11-19 08:06:28,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:06:28,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 08:06:28,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:28,086 INFO L225 Difference]: With dead ends: 364 [2023-11-19 08:06:28,086 INFO L226 Difference]: Without dead ends: 364 [2023-11-19 08:06:28,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:06:28,088 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 17 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:28,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1642 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-11-19 08:06:28,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-19 08:06:28,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2023-11-19 08:06:28,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 213 states have (on average 1.784037558685446) internal successors, (380), 348 states have internal predecessors, (380), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:06:28,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 404 transitions. [2023-11-19 08:06:28,102 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 404 transitions. Word has length 10 [2023-11-19 08:06:28,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:28,102 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 404 transitions. [2023-11-19 08:06:28,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 404 transitions. [2023-11-19 08:06:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 08:06:28,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:28,104 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:28,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:28,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:28,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 138 more)] === [2023-11-19 08:06:28,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:28,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1824251582, now seen corresponding path program 1 times [2023-11-19 08:06:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:28,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236229546] [2023-11-19 08:06:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:28,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:28,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:28,312 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:28,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 08:06:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:28,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:06:28,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:28,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:06:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:28,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:28,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236229546] [2023-11-19 08:06:28,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236229546] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:06:28,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:06:28,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-19 08:06:28,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042297522] [2023-11-19 08:06:28,923 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:06:28,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 08:06:28,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:28,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 08:06:28,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 08:06:28,924 INFO L87 Difference]: Start difference. First operand 364 states and 404 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:29,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:29,367 INFO L93 Difference]: Finished difference Result 384 states and 424 transitions. [2023-11-19 08:06:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:06:29,368 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 19 [2023-11-19 08:06:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:29,371 INFO L225 Difference]: With dead ends: 384 [2023-11-19 08:06:29,371 INFO L226 Difference]: Without dead ends: 384 [2023-11-19 08:06:29,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:06:29,373 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 18 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:29,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2345 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:06:29,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-19 08:06:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2023-11-19 08:06:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 233 states have (on average 1.7167381974248928) internal successors, (400), 368 states have internal predecessors, (400), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:06:29,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 424 transitions. [2023-11-19 08:06:29,387 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 424 transitions. Word has length 19 [2023-11-19 08:06:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:29,388 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 424 transitions. [2023-11-19 08:06:29,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:29,388 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 424 transitions. [2023-11-19 08:06:29,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 08:06:29,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:29,390 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:29,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:29,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:29,596 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 138 more)] === [2023-11-19 08:06:29,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1867527379, now seen corresponding path program 2 times [2023-11-19 08:06:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:29,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297758313] [2023-11-19 08:06:29,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:06:29,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:29,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:29,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:29,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 08:06:29,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 08:06:29,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:06:29,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:06:29,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:29,948 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 08:06:29,949 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 [2023-11-19 08:06:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-19 08:06:30,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:30,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:30,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297758313] [2023-11-19 08:06:30,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297758313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:30,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:30,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:06:30,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098702107] [2023-11-19 08:06:30,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:30,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:06:30,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:30,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:06:30,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:30,497 INFO L87 Difference]: Start difference. First operand 384 states and 424 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:31,835 INFO L93 Difference]: Finished difference Result 524 states and 579 transitions. [2023-11-19 08:06:31,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:06:31,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 39 [2023-11-19 08:06:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:31,839 INFO L225 Difference]: With dead ends: 524 [2023-11-19 08:06:31,839 INFO L226 Difference]: Without dead ends: 524 [2023-11-19 08:06:31,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:31,841 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 333 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:31,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 466 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 08:06:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-19 08:06:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 458. [2023-11-19 08:06:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 300 states have (on average 1.75) internal successors, (525), 434 states have internal predecessors, (525), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 08:06:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 559 transitions. [2023-11-19 08:06:31,861 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 559 transitions. Word has length 39 [2023-11-19 08:06:31,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:31,861 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 559 transitions. [2023-11-19 08:06:31,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 559 transitions. [2023-11-19 08:06:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 08:06:31,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:31,863 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:31,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:32,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:32,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 138 more)] === [2023-11-19 08:06:32,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1867527380, now seen corresponding path program 1 times [2023-11-19 08:06:32,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:32,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598710017] [2023-11-19 08:06:32,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:32,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:32,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:32,072 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:32,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 08:06:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:32,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 08:06:32,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:32,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:06:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:06:33,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:33,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598710017] [2023-11-19 08:06:33,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598710017] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:06:33,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 08:06:33,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-19 08:06:33,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540488662] [2023-11-19 08:06:33,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 08:06:33,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 08:06:33,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 08:06:33,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-19 08:06:33,475 INFO L87 Difference]: Start difference. First operand 458 states and 559 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:34,457 INFO L93 Difference]: Finished difference Result 466 states and 567 transitions. [2023-11-19 08:06:34,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:06:34,458 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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 39 [2023-11-19 08:06:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:34,461 INFO L225 Difference]: With dead ends: 466 [2023-11-19 08:06:34,462 INFO L226 Difference]: Without dead ends: 466 [2023-11-19 08:06:34,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-19 08:06:34,463 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 9 mSDsluCounter, 3933 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4332 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:34,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4332 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 08:06:34,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-19 08:06:34,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2023-11-19 08:06:34,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 308 states have (on average 1.7305194805194806) internal successors, (533), 442 states have internal predecessors, (533), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 08:06:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 567 transitions. [2023-11-19 08:06:34,480 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 567 transitions. Word has length 39 [2023-11-19 08:06:34,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:34,481 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 567 transitions. [2023-11-19 08:06:34,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 567 transitions. [2023-11-19 08:06:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 08:06:34,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:34,483 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:34,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:34,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:34,691 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 138 more)] === [2023-11-19 08:06:34,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:34,691 INFO L85 PathProgramCache]: Analyzing trace with hash -182614642, now seen corresponding path program 2 times [2023-11-19 08:06:34,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:34,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920829457] [2023-11-19 08:06:34,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:06:34,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:34,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:34,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:34,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-19 08:06:34,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 08:06:34,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:06:34,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 08:06:34,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:35,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:06:35,057 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 [2023-11-19 08:06:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 08:06:35,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:35,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:35,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920829457] [2023-11-19 08:06:35,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920829457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:35,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:35,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:06:35,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361992720] [2023-11-19 08:06:35,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:35,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:06:35,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:35,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:06:35,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:35,949 INFO L87 Difference]: Start difference. First operand 466 states and 567 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:38,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:38,537 INFO L93 Difference]: Finished difference Result 537 states and 591 transitions. [2023-11-19 08:06:38,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:06:38,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 47 [2023-11-19 08:06:38,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:38,541 INFO L225 Difference]: With dead ends: 537 [2023-11-19 08:06:38,542 INFO L226 Difference]: Without dead ends: 537 [2023-11-19 08:06:38,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:38,543 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 690 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:38,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 406 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 08:06:38,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-11-19 08:06:38,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 465. [2023-11-19 08:06:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 308 states have (on average 1.7272727272727273) internal successors, (532), 441 states have internal predecessors, (532), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 08:06:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 566 transitions. [2023-11-19 08:06:38,560 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 566 transitions. Word has length 47 [2023-11-19 08:06:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:38,560 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 566 transitions. [2023-11-19 08:06:38,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 566 transitions. [2023-11-19 08:06:38,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 08:06:38,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:38,563 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:38,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:38,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:38,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 138 more)] === [2023-11-19 08:06:38,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:38,769 INFO L85 PathProgramCache]: Analyzing trace with hash -701905809, now seen corresponding path program 1 times [2023-11-19 08:06:38,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:38,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209343941] [2023-11-19 08:06:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:38,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:38,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:38,772 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:38,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 08:06:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:39,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:06:39,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:39,383 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 08:06:39,384 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 [2023-11-19 08:06:39,431 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 08:06:39,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:39,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:39,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209343941] [2023-11-19 08:06:39,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209343941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:39,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:39,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:06:39,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402772160] [2023-11-19 08:06:39,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:39,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:06:39,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:06:39,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:39,433 INFO L87 Difference]: Start difference. First operand 465 states and 566 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 08:06:41,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:41,920 INFO L93 Difference]: Finished difference Result 520 states and 581 transitions. [2023-11-19 08:06:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:06:41,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 55 [2023-11-19 08:06:41,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:41,925 INFO L225 Difference]: With dead ends: 520 [2023-11-19 08:06:41,925 INFO L226 Difference]: Without dead ends: 520 [2023-11-19 08:06:41,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:06:41,926 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 280 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:41,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 477 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 08:06:41,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-19 08:06:41,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 460. [2023-11-19 08:06:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 308 states have (on average 1.7110389610389611) internal successors, (527), 436 states have internal predecessors, (527), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 08:06:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 561 transitions. [2023-11-19 08:06:41,952 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 561 transitions. Word has length 55 [2023-11-19 08:06:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:41,952 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 561 transitions. [2023-11-19 08:06:41,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 08:06:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 561 transitions. [2023-11-19 08:06:41,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 08:06:41,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:41,954 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:41,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:42,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:42,173 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 138 more)] === [2023-11-19 08:06:42,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:42,173 INFO L85 PathProgramCache]: Analyzing trace with hash -701905808, now seen corresponding path program 1 times [2023-11-19 08:06:42,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:42,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521455568] [2023-11-19 08:06:42,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:42,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:06:42,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:42,176 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 08:06:42,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_787d91ac-5403-4749-9943-c2575fa50bc4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-19 08:06:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:42,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:06:42,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:42,876 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-19 08:06:42,876 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 19 treesize of output 21 [2023-11-19 08:06:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 08:06:43,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:43,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:43,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521455568] [2023-11-19 08:06:43,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521455568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:43,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:43,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:06:43,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516788121] [2023-11-19 08:06:43,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:43,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:06:43,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:43,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:06:43,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:06:43,006 INFO L87 Difference]: Start difference. First operand 460 states and 561 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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)