./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 0e0057cc 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_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 12:04:37,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:37,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-26 12:04:37,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:37,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:37,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:37,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:37,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:37,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:37,861 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:37,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:37,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:37,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:37,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:37,865 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:37,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:37,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:37,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:37,868 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:04:37,868 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:04:37,869 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:04:37,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:37,870 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:04:37,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:37,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:37,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:37,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:37,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:37,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:37,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:37,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:37,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:37,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:37,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:04:37,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:37,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:37,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:37,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:37,879 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_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e2dc8873946fef7a19f9a424fb345eb43768fe38bdfc084307c2d557560dafb [2023-11-26 12:04:38,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:38,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:38,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:38,256 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:38,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:38,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-26 12:04:41,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:41,934 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:41,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-26 12:04:41,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data/cc088f6d2/830209f2a1034029b5a8889d6a58ff57/FLAGa65f79d5b [2023-11-26 12:04:41,986 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data/cc088f6d2/830209f2a1034029b5a8889d6a58ff57 [2023-11-26 12:04:41,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:41,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:41,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:41,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:42,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:42,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:41" (1/1) ... [2023-11-26 12:04:42,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f5ca5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:42, skipping insertion in model container [2023-11-26 12:04:42,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:41" (1/1) ... [2023-11-26 12:04:42,100 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:43,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:43,660 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) [2023-11-26 12:04:43,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c29be5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:43, skipping insertion in model container [2023-11-26 12:04:43,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:43,662 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 12:04:43,664 INFO L158 Benchmark]: Toolchain (without parser) took 1672.66ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 89.8MB in the beginning and 153.6MB in the end (delta: -63.8MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-26 12:04:43,665 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 140.5MB. Free memory was 83.6MB in the beginning and 83.4MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:43,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1669.72ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 89.7MB in the beginning and 153.6MB in the end (delta: -63.8MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-26 12:04:43,669 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 140.5MB. Free memory was 83.6MB in the beginning and 83.4MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1669.72ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 89.7MB in the beginning and 153.6MB in the end (delta: -63.8MB). Peak memory consumption was 33.2MB. 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_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 12:04:46,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:46,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-26 12:04:46,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:46,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:46,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:46,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:46,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:46,406 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:46,407 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:46,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:46,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:46,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:46,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:46,410 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:46,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:46,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:46,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:46,412 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:04:46,413 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:04:46,413 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:04:46,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:46,414 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:04:46,415 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:04:46,415 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:04:46,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:46,416 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:46,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:46,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:46,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:46,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:46,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:46,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:46,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:46,419 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:04:46,419 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:04:46,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:46,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:46,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:46,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:46,420 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:04:46,421 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_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e2dc8873946fef7a19f9a424fb345eb43768fe38bdfc084307c2d557560dafb [2023-11-26 12:04:46,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:46,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:46,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:46,846 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:46,846 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:46,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-26 12:04:50,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:50,583 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:50,583 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/sv-benchmarks/c/busybox-1.22.0/logname-1.i [2023-11-26 12:04:50,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data/aca9cb99d/5b2578248cec4dd380a6005bccdfccc6/FLAG050ba9b38 [2023-11-26 12:04:50,646 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/data/aca9cb99d/5b2578248cec4dd380a6005bccdfccc6 [2023-11-26 12:04:50,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:50,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:50,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:50,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:50,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:50,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:50" (1/1) ... [2023-11-26 12:04:50,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424dede2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:50, skipping insertion in model container [2023-11-26 12:04:50,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:50" (1/1) ... [2023-11-26 12:04:50,764 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:52,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:52,193 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 12:04:52,219 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:52,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:52,410 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:52,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:52,779 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:52,779 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:52,779 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:52,787 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:52,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52 WrapperNode [2023-11-26 12:04:52,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:52,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:52,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:52,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:52,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:52,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:52,984 INFO L138 Inliner]: procedures = 608, calls = 155, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 500 [2023-11-26 12:04:52,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:52,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:52,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:52,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:53,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,050 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-26 12:04:53,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:53,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:53,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:53,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:53,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (1/1) ... [2023-11-26 12:04:53,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:53,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:53,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:53,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-26 12:04:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:04:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-26 12:04:53,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-26 12:04:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:04:53,232 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 12:04:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 12:04:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-26 12:04:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-26 12:04:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-26 12:04:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-26 12:04:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-26 12:04:53,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-26 12:04:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-26 12:04:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-26 12:04:53,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-26 12:04:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-26 12:04:53,238 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:04:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:04:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:04:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 12:04:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2023-11-26 12:04:53,240 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2023-11-26 12:04:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-26 12:04:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-26 12:04:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-26 12:04:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-26 12:04:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-26 12:04:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-26 12:04:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-26 12:04:53,717 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:53,721 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:05:00,325 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:05:00,408 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:05:00,408 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-26 12:05:00,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:00 BoogieIcfgContainer [2023-11-26 12:05:00,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:05:00,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:05:00,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:05:00,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:05:00,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:50" (1/3) ... [2023-11-26 12:05:00,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25019084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:00, skipping insertion in model container [2023-11-26 12:05:00,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:52" (2/3) ... [2023-11-26 12:05:00,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25019084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:00, skipping insertion in model container [2023-11-26 12:05:00,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:00" (3/3) ... [2023-11-26 12:05:00,429 INFO L112 eAbstractionObserver]: Analyzing ICFG logname-1.i [2023-11-26 12:05:00,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:05:00,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 141 error locations. [2023-11-26 12:05:00,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:05:00,510 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;@144f6c85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:05:00,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 141 error locations. [2023-11-26 12:05:00,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 318 states, 161 states have (on average 2.1490683229813663) internal successors, (346), 302 states have internal predecessors, (346), 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) [2023-11-26 12:05:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-26 12:05:00,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:00,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-26 12:05:00,524 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)] === [2023-11-26 12:05:00,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:00,530 INFO L85 PathProgramCache]: Analyzing trace with hash 21274, now seen corresponding path program 1 times [2023-11-26 12:05:00,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:00,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534463375] [2023-11-26 12:05:00,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:00,551 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 [2023-11-26 12:05:00,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:00,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:00,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:00,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:05:00,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:00,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-26 12:05:00,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:00,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:00,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:00,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534463375] [2023-11-26 12:05:00,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534463375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:00,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:00,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:05:00,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500213468] [2023-11-26 12:05:00,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:00,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:00,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:00,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:00,934 INFO L87 Difference]: Start difference. First operand has 318 states, 161 states have (on average 2.1490683229813663) internal successors, (346), 302 states have internal predecessors, (346), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:02,436 INFO L93 Difference]: Finished difference Result 419 states and 476 transitions. [2023-11-26 12:05:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:02,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-26 12:05:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:02,452 INFO L225 Difference]: With dead ends: 419 [2023-11-26 12:05:02,452 INFO L226 Difference]: Without dead ends: 418 [2023-11-26 12:05:02,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:02,457 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 260 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:02,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 371 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 12:05:02,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-11-26 12:05:02,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 314. [2023-11-26 12:05:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 161 states have (on average 2.049689440993789) internal successors, (330), 298 states have internal predecessors, (330), 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) [2023-11-26 12:05:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 354 transitions. [2023-11-26 12:05:02,524 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 354 transitions. Word has length 2 [2023-11-26 12:05:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:02,525 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 354 transitions. [2023-11-26 12:05:02,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 354 transitions. [2023-11-26 12:05:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-26 12:05:02,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:02,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-26 12:05:02,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:02,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:02,731 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)] === [2023-11-26 12:05:02,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:02,732 INFO L85 PathProgramCache]: Analyzing trace with hash 21275, now seen corresponding path program 1 times [2023-11-26 12:05:02,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:02,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631234521] [2023-11-26 12:05:02,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:02,734 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 [2023-11-26 12:05:02,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:02,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:02,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:02,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:05:02,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:02,957 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 [2023-11-26 12:05:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:02,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:02,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:02,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631234521] [2023-11-26 12:05:02,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631234521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:02,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:02,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:05:02,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218814271] [2023-11-26 12:05:02,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:02,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:02,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:02,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:02,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:02,982 INFO L87 Difference]: Start difference. First operand 314 states and 354 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:04,918 INFO L93 Difference]: Finished difference Result 313 states and 353 transitions. [2023-11-26 12:05:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-26 12:05:04,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:04,922 INFO L225 Difference]: With dead ends: 313 [2023-11-26 12:05:04,923 INFO L226 Difference]: Without dead ends: 313 [2023-11-26 12:05:04,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:04,924 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 9 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:04,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 512 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-26 12:05:04,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-26 12:05:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2023-11-26 12:05:04,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 161 states have (on average 2.0434782608695654) internal successors, (329), 297 states have internal predecessors, (329), 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) [2023-11-26 12:05:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 353 transitions. [2023-11-26 12:05:04,949 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 353 transitions. Word has length 2 [2023-11-26 12:05:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:04,949 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 353 transitions. [2023-11-26 12:05:04,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 353 transitions. [2023-11-26 12:05:04,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 12:05:04,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:04,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 12:05:04,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-26 12:05:05,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:05,156 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)] === [2023-11-26 12:05:05,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:05,157 INFO L85 PathProgramCache]: Analyzing trace with hash 21040744, now seen corresponding path program 1 times [2023-11-26 12:05:05,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:05,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871116959] [2023-11-26 12:05:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:05,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:05,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:05,160 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:05,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:05,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:05:05,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:05,373 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 [2023-11-26 12:05:05,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:05,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:05,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:05,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871116959] [2023-11-26 12:05:05,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871116959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:05,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:05,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:05,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137675470] [2023-11-26 12:05:05,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:05,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:05:05,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:05,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:05:05,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:05,475 INFO L87 Difference]: Start difference. First operand 313 states and 353 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:07,472 INFO L93 Difference]: Finished difference Result 315 states and 355 transitions. [2023-11-26 12:05:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:05:07,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-26 12:05:07,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:07,476 INFO L225 Difference]: With dead ends: 315 [2023-11-26 12:05:07,476 INFO L226 Difference]: Without dead ends: 315 [2023-11-26 12:05:07,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:07,478 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 9 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:07,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 512 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-26 12:05:07,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-26 12:05:07,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2023-11-26 12:05:07,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 163 states have (on average 2.0306748466257667) internal successors, (331), 299 states have internal predecessors, (331), 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) [2023-11-26 12:05:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 355 transitions. [2023-11-26 12:05:07,500 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 355 transitions. Word has length 4 [2023-11-26 12:05:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:07,501 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 355 transitions. [2023-11-26 12:05:07,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 355 transitions. [2023-11-26 12:05:07,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 12:05:07,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:07,502 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 12:05:07,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:07,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:07,709 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)] === [2023-11-26 12:05:07,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:07,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1254136960, now seen corresponding path program 1 times [2023-11-26 12:05:07,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:07,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638241455] [2023-11-26 12:05:07,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:07,712 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 [2023-11-26 12:05:07,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:07,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:07,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:07,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:05:07,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:07,992 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 [2023-11-26 12:05:08,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:08,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:08,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:08,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638241455] [2023-11-26 12:05:08,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638241455] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:08,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:08,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2023-11-26 12:05:08,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891420644] [2023-11-26 12:05:08,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:08,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:05:08,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:08,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:05:08,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:05:08,794 INFO L87 Difference]: Start difference. First operand 315 states and 355 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:16,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:16,854 INFO L93 Difference]: Finished difference Result 317 states and 357 transitions. [2023-11-26 12:05:16,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:05:16,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 12:05:16,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:16,858 INFO L225 Difference]: With dead ends: 317 [2023-11-26 12:05:16,858 INFO L226 Difference]: Without dead ends: 317 [2023-11-26 12:05:16,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:05:16,860 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 19 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:16,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 916 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-26 12:05:16,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-26 12:05:16,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-11-26 12:05:16,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 166 states have (on average 2.0060240963855422) internal successors, (333), 301 states have internal predecessors, (333), 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) [2023-11-26 12:05:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 357 transitions. [2023-11-26 12:05:16,877 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 357 transitions. Word has length 6 [2023-11-26 12:05:16,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:16,878 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 357 transitions. [2023-11-26 12:05:16,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 357 transitions. [2023-11-26 12:05:16,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:05:16,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:16,879 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-11-26 12:05:16,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:17,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:17,086 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)] === [2023-11-26 12:05:17,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:17,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1279300580, now seen corresponding path program 1 times [2023-11-26 12:05:17,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:17,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185310061] [2023-11-26 12:05:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:17,088 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 [2023-11-26 12:05:17,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:17,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:17,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:17,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:05:17,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:17,382 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:17,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:17,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:17,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185310061] [2023-11-26 12:05:17,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185310061] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:17,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:17,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-26 12:05:17,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72906832] [2023-11-26 12:05:17,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:17,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:05:17,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:17,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:05:17,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:05:17,515 INFO L87 Difference]: Start difference. First operand 317 states and 357 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:19,023 INFO L93 Difference]: Finished difference Result 327 states and 367 transitions. [2023-11-26 12:05:19,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 12:05:19,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-26 12:05:19,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:19,027 INFO L225 Difference]: With dead ends: 327 [2023-11-26 12:05:19,027 INFO L226 Difference]: Without dead ends: 327 [2023-11-26 12:05:19,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:05:19,028 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 5 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:19,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1552 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 12:05:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-26 12:05:19,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2023-11-26 12:05:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 176 states have (on average 1.9488636363636365) internal successors, (343), 311 states have internal predecessors, (343), 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) [2023-11-26 12:05:19,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 367 transitions. [2023-11-26 12:05:19,042 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 367 transitions. Word has length 11 [2023-11-26 12:05:19,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:19,042 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 367 transitions. [2023-11-26 12:05:19,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:19,042 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 367 transitions. [2023-11-26 12:05:19,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 12:05:19,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:19,043 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-11-26 12:05:19,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:19,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:19,250 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)] === [2023-11-26 12:05:19,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:19,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1453543276, now seen corresponding path program 2 times [2023-11-26 12:05:19,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:19,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310451319] [2023-11-26 12:05:19,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:05:19,252 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 [2023-11-26 12:05:19,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:19,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:19,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:19,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 12:05:19,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:05:19,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:05:19,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:19,571 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-26 12:05:19,572 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 [2023-11-26 12:05:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-26 12:05:19,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:19,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:19,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310451319] [2023-11-26 12:05:19,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310451319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:19,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:19,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:05:19,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986323450] [2023-11-26 12:05:19,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:19,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:19,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:19,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:19,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:19,967 INFO L87 Difference]: Start difference. First operand 327 states and 367 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:22,322 INFO L93 Difference]: Finished difference Result 451 states and 506 transitions. [2023-11-26 12:05:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:22,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-26 12:05:22,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:22,326 INFO L225 Difference]: With dead ends: 451 [2023-11-26 12:05:22,326 INFO L226 Difference]: Without dead ends: 451 [2023-11-26 12:05:22,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:22,327 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 295 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:22,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 374 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-26 12:05:22,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2023-11-26 12:05:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 387. [2023-11-26 12:05:22,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 229 states have (on average 1.982532751091703) internal successors, (454), 363 states have internal predecessors, (454), 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) [2023-11-26 12:05:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 488 transitions. [2023-11-26 12:05:22,344 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 488 transitions. Word has length 21 [2023-11-26 12:05:22,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:22,344 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 488 transitions. [2023-11-26 12:05:22,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 488 transitions. [2023-11-26 12:05:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 12:05:22,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:22,346 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-11-26 12:05:22,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-26 12:05:22,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:22,563 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)] === [2023-11-26 12:05:22,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:22,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1453543277, now seen corresponding path program 1 times [2023-11-26 12:05:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243759071] [2023-11-26 12:05:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:22,564 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 [2023-11-26 12:05:22,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:22,567 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:22,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:22,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 12:05:22,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:23,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:23,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:23,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243759071] [2023-11-26 12:05:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243759071] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:23,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-26 12:05:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554549707] [2023-11-26 12:05:23,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:23,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-26 12:05:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-26 12:05:23,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-26 12:05:23,554 INFO L87 Difference]: Start difference. First operand 387 states and 488 transitions. Second operand has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:26,720 INFO L93 Difference]: Finished difference Result 391 states and 492 transitions. [2023-11-26 12:05:26,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:05:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-26 12:05:26,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:26,725 INFO L225 Difference]: With dead ends: 391 [2023-11-26 12:05:26,726 INFO L226 Difference]: Without dead ends: 391 [2023-11-26 12:05:26,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-26 12:05:26,727 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 2 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:26,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3710 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-26 12:05:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-26 12:05:26,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2023-11-26 12:05:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 233 states have (on average 1.9656652360515021) internal successors, (458), 367 states have internal predecessors, (458), 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) [2023-11-26 12:05:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 492 transitions. [2023-11-26 12:05:26,742 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 492 transitions. Word has length 21 [2023-11-26 12:05:26,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:26,743 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 492 transitions. [2023-11-26 12:05:26,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 492 transitions. [2023-11-26 12:05:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 12:05:26,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:26,744 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2023-11-26 12:05:26,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:26,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:26,952 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)] === [2023-11-26 12:05:26,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash -826117827, now seen corresponding path program 2 times [2023-11-26 12:05:26,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:26,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053992282] [2023-11-26 12:05:26,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:05:26,954 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 [2023-11-26 12:05:26,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:26,955 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:26,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:27,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 12:05:27,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:05:27,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:05:27,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:05:27,247 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 [2023-11-26 12:05:27,608 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-26 12:05:27,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:27,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:27,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053992282] [2023-11-26 12:05:27,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053992282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:27,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:27,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:05:27,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869579888] [2023-11-26 12:05:27,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:27,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:27,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:27,610 INFO L87 Difference]: Start difference. First operand 391 states and 492 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:29,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:29,531 INFO L93 Difference]: Finished difference Result 394 states and 494 transitions. [2023-11-26 12:05:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:29,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-26 12:05:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:29,535 INFO L225 Difference]: With dead ends: 394 [2023-11-26 12:05:29,535 INFO L226 Difference]: Without dead ends: 394 [2023-11-26 12:05:29,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:29,536 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 6 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:29,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 518 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-26 12:05:29,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-11-26 12:05:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2023-11-26 12:05:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 236 states have (on average 1.9491525423728813) internal successors, (460), 369 states have internal predecessors, (460), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 12:05:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 494 transitions. [2023-11-26 12:05:29,551 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 494 transitions. Word has length 25 [2023-11-26 12:05:29,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:29,551 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 494 transitions. [2023-11-26 12:05:29,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:29,551 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 494 transitions. [2023-11-26 12:05:29,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-26 12:05:29,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:29,553 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:29,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:29,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:29,759 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)] === [2023-11-26 12:05:29,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:29,759 INFO L85 PathProgramCache]: Analyzing trace with hash -275724299, now seen corresponding path program 1 times [2023-11-26 12:05:29,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:29,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792077348] [2023-11-26 12:05:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:29,760 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 [2023-11-26 12:05:29,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:29,762 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:29,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:30,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:05:30,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:30,234 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-26 12:05:30,234 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 [2023-11-26 12:05:30,269 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-26 12:05:30,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:30,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792077348] [2023-11-26 12:05:30,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792077348] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:30,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:30,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:30,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313065449] [2023-11-26 12:05:30,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:30,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:30,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:30,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:30,273 INFO L87 Difference]: Start difference. First operand 394 states and 494 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:05:32,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:32,741 INFO L93 Difference]: Finished difference Result 447 states and 507 transitions. [2023-11-26 12:05:32,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2023-11-26 12:05:32,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:32,744 INFO L225 Difference]: With dead ends: 447 [2023-11-26 12:05:32,744 INFO L226 Difference]: Without dead ends: 447 [2023-11-26 12:05:32,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:32,745 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 245 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:32,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 376 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-26 12:05:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-26 12:05:32,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 389. [2023-11-26 12:05:32,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 236 states have (on average 1.9279661016949152) internal successors, (455), 364 states have internal predecessors, (455), 17 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 12:05:32,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 489 transitions. [2023-11-26 12:05:32,760 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 489 transitions. Word has length 32 [2023-11-26 12:05:32,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:32,760 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 489 transitions. [2023-11-26 12:05:32,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:05:32,760 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 489 transitions. [2023-11-26 12:05:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-26 12:05:32,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:32,762 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:32,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:32,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:32,972 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)] === [2023-11-26 12:05:32,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:32,973 INFO L85 PathProgramCache]: Analyzing trace with hash -275724298, now seen corresponding path program 1 times [2023-11-26 12:05:32,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:32,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098303603] [2023-11-26 12:05:32,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:32,977 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 [2023-11-26 12:05:32,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:32,979 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 12:05:33,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4684f508-fc16-4272-92c0-2953c51283ac/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 12:05:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:33,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 12:05:33,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:33,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:05:33,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-26 12:05:33,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-26 12:05:33,742 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-26 12:05:33,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:33,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:33,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098303603] [2023-11-26 12:05:33,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098303603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:33,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:33,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:33,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955529447] [2023-11-26 12:05:33,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:33,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:05:33,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:33,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:05:33,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:05:33,744 INFO L87 Difference]: Start difference. First operand 389 states and 489 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)