./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI --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 32bit --witnessprinter.graph.data.programhash 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:27:07,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:27:07,998 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:27:08,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:27:08,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:27:08,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:27:08,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:27:08,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:27:08,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:27:08,062 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:27:08,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:27:08,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:27:08,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:27:08,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:27:08,066 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:27:08,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:27:08,067 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:27:08,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:27:08,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:27:08,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:27:08,069 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:27:08,069 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:27:08,070 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:27:08,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:27:08,070 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:27:08,071 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:27:08,071 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:27:08,072 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:27:08,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:27:08,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:27:08,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:27:08,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:27:08,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:27:08,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:27:08,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:27:08,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:27:08,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:27:08,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:27:08,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:27:08,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:27:08,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:27:08,077 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_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2023-11-24 21:27:08,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:27:08,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:27:08,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:27:08,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:27:08,421 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:27:08,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2023-11-24 21:27:11,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:27:12,065 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:27:12,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2023-11-24 21:27:12,096 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data/cc4f79d4e/7a0bc3aeb80f42349845c03c53808231/FLAG7d7c91567 [2023-11-24 21:27:12,113 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data/cc4f79d4e/7a0bc3aeb80f42349845c03c53808231 [2023-11-24 21:27:12,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:27:12,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:27:12,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:12,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:27:12,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:27:12,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:12" (1/1) ... [2023-11-24 21:27:12,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0ee507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:12, skipping insertion in model container [2023-11-24 21:27:12,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:12" (1/1) ... [2023-11-24 21:27:12,216 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:27:12,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:12,918 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) [2023-11-24 21:27:12,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e302e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:12, skipping insertion in model container [2023-11-24 21:27:12,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:12,920 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:27:12,922 INFO L158 Benchmark]: Toolchain (without parser) took 800.55ms. Allocated memory is still 159.4MB. Free memory was 126.8MB in the beginning and 105.9MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 21:27:12,924 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:27:12,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.03ms. Allocated memory is still 159.4MB. Free memory was 126.3MB in the beginning and 106.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 21:27:12,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.03ms. Allocated memory is still 159.4MB. Free memory was 126.3MB in the beginning and 106.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: 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_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI --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 32bit --witnessprinter.graph.data.programhash 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:27:15,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:27:15,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:27:15,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:27:15,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:27:15,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:27:15,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:27:15,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:27:15,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:27:15,562 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:27:15,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:27:15,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:27:15,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:27:15,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:27:15,566 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:27:15,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:27:15,567 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:27:15,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:27:15,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:27:15,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:27:15,569 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:27:15,569 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:27:15,570 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:27:15,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:27:15,571 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:27:15,571 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:27:15,572 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:27:15,572 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:27:15,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:27:15,573 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:27:15,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:27:15,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:27:15,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:27:15,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:27:15,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:27:15,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:27:15,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:27:15,579 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:27:15,579 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:27:15,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:27:15,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:27:15,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:27:15,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:27:15,581 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:27:15,582 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_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2023-11-24 21:27:15,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:27:15,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:27:15,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:27:15,993 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:27:15,994 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:27:15,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2023-11-24 21:27:19,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:27:19,468 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:27:19,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2023-11-24 21:27:19,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data/ae9988ae2/a0f88185d42d4fdc83b6eb4c010addb9/FLAGde9699f46 [2023-11-24 21:27:19,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/data/ae9988ae2/a0f88185d42d4fdc83b6eb4c010addb9 [2023-11-24 21:27:19,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:27:19,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:27:19,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:19,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:27:19,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:27:19,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:19" (1/1) ... [2023-11-24 21:27:19,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e293aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:19, skipping insertion in model container [2023-11-24 21:27:19,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:19" (1/1) ... [2023-11-24 21:27:19,603 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:27:20,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:20,420 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:27:20,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:27:20,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:20,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:27:20,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:20,747 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:27:20,755 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:27:20,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20 WrapperNode [2023-11-24 21:27:20,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:20,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:27:20,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:27:20,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:27:20,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:20,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:20,881 INFO L138 Inliner]: procedures = 179, calls = 331, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1184 [2023-11-24 21:27:20,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:27:20,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:27:20,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:27:20,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:27:20,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:20,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:20,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,043 INFO L175 MemorySlicer]: Split 306 memory accesses to 4 slices as follows [2, 34, 5, 265]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 4, 1, 58]. [2023-11-24 21:27:21,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:27:21,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:27:21,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:27:21,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:27:21,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:27:21,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:27:21,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:27:21,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:27:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 21:27:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 21:27:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:27:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:27:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:27:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:27:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:27:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:27:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:27:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:27:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:27:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:27:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:27:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:27:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:27:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:27:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:27:21,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:27:21,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:27:21,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:27:21,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:27:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:27:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:27:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:27:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:27:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:27:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:27:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:27:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:27:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:27:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:27:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:27:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:27:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:27:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:27:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:27:21,628 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:27:21,631 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:27:21,653 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:21,690 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:21,712 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:21,733 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:27,885 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:27:28,184 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:27:28,184 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-24 21:27:28,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:27:28 BoogieIcfgContainer [2023-11-24 21:27:28,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:27:28,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:27:28,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:27:28,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:27:28,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:27:19" (1/3) ... [2023-11-24 21:27:28,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79016f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:27:28, skipping insertion in model container [2023-11-24 21:27:28,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (2/3) ... [2023-11-24 21:27:28,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79016f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:27:28, skipping insertion in model container [2023-11-24 21:27:28,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:27:28" (3/3) ... [2023-11-24 21:27:28,201 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-2.i [2023-11-24 21:27:28,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:27:28,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 634 error locations. [2023-11-24 21:27:28,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:27:28,334 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;@2a6a68b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:27:28,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2023-11-24 21:27:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 1139 states, 500 states have (on average 2.548) internal successors, (1274), 1132 states have internal predecessors, (1274), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:27:28,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:27:28,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:28,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:27:28,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:28,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:28,371 INFO L85 PathProgramCache]: Analyzing trace with hash 63103, now seen corresponding path program 1 times [2023-11-24 21:27:28,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:28,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575133725] [2023-11-24 21:27:28,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:28,395 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 [2023-11-24 21:27:28,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:28,399 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:28,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:28,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:27:28,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:28,746 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 [2023-11-24 21:27:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:28,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:28,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575133725] [2023-11-24 21:27:28,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575133725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:28,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:28,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:27:28,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778407304] [2023-11-24 21:27:28,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:28,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:27:28,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:28,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:27:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:28,822 INFO L87 Difference]: Start difference. First operand has 1139 states, 500 states have (on average 2.548) internal successors, (1274), 1132 states have internal predecessors, (1274), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2023-11-24 21:27:32,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:32,657 INFO L93 Difference]: Finished difference Result 1297 states and 1372 transitions. [2023-11-24 21:27:32,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:27:32,660 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 [2023-11-24 21:27:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:32,687 INFO L225 Difference]: With dead ends: 1297 [2023-11-24 21:27:32,687 INFO L226 Difference]: Without dead ends: 1296 [2023-11-24 21:27:32,689 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 [2023-11-24 21:27:32,693 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 1058 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:32,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 752 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-24 21:27:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2023-11-24 21:27:32,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1123. [2023-11-24 21:27:32,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 502 states have (on average 2.354581673306773) internal successors, (1182), 1117 states have internal predecessors, (1182), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 21:27:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1190 transitions. [2023-11-24 21:27:32,841 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1190 transitions. Word has length 2 [2023-11-24 21:27:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:32,842 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1190 transitions. [2023-11-24 21:27:32,842 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) [2023-11-24 21:27:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1190 transitions. [2023-11-24 21:27:32,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:27:32,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:32,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:27:32,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-24 21:27:33,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:33,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:33,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:33,047 INFO L85 PathProgramCache]: Analyzing trace with hash 63104, now seen corresponding path program 1 times [2023-11-24 21:27:33,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:33,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679381711] [2023-11-24 21:27:33,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:33,048 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 [2023-11-24 21:27:33,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:33,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:33,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:33,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:27:33,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:33,264 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 [2023-11-24 21:27:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:33,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:33,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:33,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679381711] [2023-11-24 21:27:33,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679381711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:33,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:33,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:27:33,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564129891] [2023-11-24 21:27:33,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:33,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:27:33,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:27:33,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:33,287 INFO L87 Difference]: Start difference. First operand 1123 states and 1190 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) [2023-11-24 21:27:39,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:39,224 INFO L93 Difference]: Finished difference Result 1662 states and 1771 transitions. [2023-11-24 21:27:39,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:27:39,225 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 [2023-11-24 21:27:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:39,236 INFO L225 Difference]: With dead ends: 1662 [2023-11-24 21:27:39,236 INFO L226 Difference]: Without dead ends: 1662 [2023-11-24 21:27:39,237 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 [2023-11-24 21:27:39,238 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 579 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:39,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1402 Invalid, 961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-24 21:27:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2023-11-24 21:27:39,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1292. [2023-11-24 21:27:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 672 states have (on average 2.325892857142857) internal successors, (1563), 1286 states have internal predecessors, (1563), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 21:27:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1571 transitions. [2023-11-24 21:27:39,286 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1571 transitions. Word has length 2 [2023-11-24 21:27:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:39,287 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 1571 transitions. [2023-11-24 21:27:39,287 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) [2023-11-24 21:27:39,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1571 transitions. [2023-11-24 21:27:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 21:27:39,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:39,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 21:27:39,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:39,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:39,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:39,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1851850551, now seen corresponding path program 1 times [2023-11-24 21:27:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852462862] [2023-11-24 21:27:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:39,494 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 [2023-11-24 21:27:39,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:39,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:39,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:39,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:27:39,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:39,748 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 [2023-11-24 21:27:39,757 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 [2023-11-24 21:27:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:27:39,891 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 [2023-11-24 21:27:39,919 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:27:39,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-24 21:27:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:39,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:39,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:39,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852462862] [2023-11-24 21:27:39,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852462862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:39,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:39,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:27:39,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556648808] [2023-11-24 21:27:39,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:39,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:27:39,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:39,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:27:39,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:27:39,958 INFO L87 Difference]: Start difference. First operand 1292 states and 1571 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:27:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:45,350 INFO L93 Difference]: Finished difference Result 1459 states and 1749 transitions. [2023-11-24 21:27:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:27:45,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-24 21:27:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:45,359 INFO L225 Difference]: With dead ends: 1459 [2023-11-24 21:27:45,359 INFO L226 Difference]: Without dead ends: 1459 [2023-11-24 21:27:45,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:27:45,361 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1331 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:45,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 377 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-24 21:27:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-11-24 21:27:45,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1112. [2023-11-24 21:27:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 502 states have (on average 2.3306772908366535) internal successors, (1170), 1106 states have internal predecessors, (1170), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 21:27:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1178 transitions. [2023-11-24 21:27:45,395 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1178 transitions. Word has length 6 [2023-11-24 21:27:45,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:45,396 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1178 transitions. [2023-11-24 21:27:45,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:27:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1178 transitions. [2023-11-24 21:27:45,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 21:27:45,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:45,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:27:45,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:45,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:45,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:45,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1572792223, now seen corresponding path program 1 times [2023-11-24 21:27:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:45,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787153636] [2023-11-24 21:27:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:45,602 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 [2023-11-24 21:27:45,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:45,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:45,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:45,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:27:45,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:45,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 21:27:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:45,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:45,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787153636] [2023-11-24 21:27:45,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787153636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:45,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:45,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:27:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513999882] [2023-11-24 21:27:45,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:45,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:27:45,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:45,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:27:45,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:45,799 INFO L87 Difference]: Start difference. First operand 1112 states and 1178 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-24 21:27:49,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:49,206 INFO L93 Difference]: Finished difference Result 1408 states and 1504 transitions. [2023-11-24 21:27:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:27:49,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 7 [2023-11-24 21:27:49,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:49,217 INFO L225 Difference]: With dead ends: 1408 [2023-11-24 21:27:49,217 INFO L226 Difference]: Without dead ends: 1408 [2023-11-24 21:27:49,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:49,218 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 881 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:49,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1233 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-24 21:27:49,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2023-11-24 21:27:49,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1065. [2023-11-24 21:27:49,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 502 states have (on average 2.237051792828685) internal successors, (1123), 1059 states have internal predecessors, (1123), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 21:27:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1131 transitions. [2023-11-24 21:27:49,268 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1131 transitions. Word has length 7 [2023-11-24 21:27:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:49,268 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1131 transitions. [2023-11-24 21:27:49,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-24 21:27:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1131 transitions. [2023-11-24 21:27:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 21:27:49,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:49,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:27:49,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:49,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:49,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:49,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1572792222, now seen corresponding path program 1 times [2023-11-24 21:27:49,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:49,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479794869] [2023-11-24 21:27:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:49,481 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 [2023-11-24 21:27:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:49,482 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:49,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:49,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:27:49,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:49,693 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 [2023-11-24 21:27:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:49,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:49,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:49,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479794869] [2023-11-24 21:27:49,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479794869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:49,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:49,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:27:49,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291779398] [2023-11-24 21:27:49,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:49,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:27:49,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:49,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:27:49,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:49,729 INFO L87 Difference]: Start difference. First operand 1065 states and 1131 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-24 21:27:54,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:54,167 INFO L93 Difference]: Finished difference Result 1478 states and 1577 transitions. [2023-11-24 21:27:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:27:54,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 7 [2023-11-24 21:27:54,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:54,174 INFO L225 Difference]: With dead ends: 1478 [2023-11-24 21:27:54,174 INFO L226 Difference]: Without dead ends: 1478 [2023-11-24 21:27:54,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:54,176 INFO L413 NwaCegarLoop]: 1108 mSDtfsCounter, 613 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:54,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 1536 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-24 21:27:54,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2023-11-24 21:27:54,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1078. [2023-11-24 21:27:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 525 states have (on average 2.2285714285714286) internal successors, (1170), 1072 states have internal predecessors, (1170), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 21:27:54,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1178 transitions. [2023-11-24 21:27:54,207 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1178 transitions. Word has length 7 [2023-11-24 21:27:54,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:54,207 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1178 transitions. [2023-11-24 21:27:54,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-24 21:27:54,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1178 transitions. [2023-11-24 21:27:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 21:27:54,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:54,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:27:54,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-24 21:27:54,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:54,412 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:54,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash 774433652, now seen corresponding path program 1 times [2023-11-24 21:27:54,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:54,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775237172] [2023-11-24 21:27:54,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:54,413 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 [2023-11-24 21:27:54,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:54,414 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:54,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:54,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:27:54,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:54,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:54,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:54,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:54,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775237172] [2023-11-24 21:27:54,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775237172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:54,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:54,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:27:54,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961646189] [2023-11-24 21:27:54,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:54,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:27:54,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:27:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:27:54,694 INFO L87 Difference]: Start difference. First operand 1078 states and 1178 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:27:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:57,484 INFO L93 Difference]: Finished difference Result 1667 states and 1811 transitions. [2023-11-24 21:27:57,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:27:57,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-24 21:27:57,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:57,493 INFO L225 Difference]: With dead ends: 1667 [2023-11-24 21:27:57,494 INFO L226 Difference]: Without dead ends: 1667 [2023-11-24 21:27:57,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:27:57,495 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 689 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:57,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 2911 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 21:27:57,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2023-11-24 21:27:57,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1282. [2023-11-24 21:27:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 729 states have (on average 2.179698216735254) internal successors, (1589), 1276 states have internal predecessors, (1589), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 21:27:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1597 transitions. [2023-11-24 21:27:57,530 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1597 transitions. Word has length 12 [2023-11-24 21:27:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:57,530 INFO L495 AbstractCegarLoop]: Abstraction has 1282 states and 1597 transitions. [2023-11-24 21:27:57,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:27:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1597 transitions. [2023-11-24 21:27:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 21:27:57,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:57,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:27:57,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-24 21:27:57,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:57,737 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr341REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:57,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 188114419, now seen corresponding path program 1 times [2023-11-24 21:27:57,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:57,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281994637] [2023-11-24 21:27:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:57,738 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 [2023-11-24 21:27:57,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:57,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:57,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:57,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:27:57,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:57,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:57,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:57,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:57,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281994637] [2023-11-24 21:27:57,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281994637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:57,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:57,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:27:57,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296120632] [2023-11-24 21:27:57,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:57,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:27:57,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:57,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:27:57,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:57,945 INFO L87 Difference]: Start difference. First operand 1282 states and 1597 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2023-11-24 21:27:59,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:59,037 INFO L93 Difference]: Finished difference Result 1228 states and 1517 transitions. [2023-11-24 21:27:59,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:27:59,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 12 [2023-11-24 21:27:59,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:59,047 INFO L225 Difference]: With dead ends: 1228 [2023-11-24 21:27:59,047 INFO L226 Difference]: Without dead ends: 1228 [2023-11-24 21:27:59,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:59,048 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 70 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:59,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1837 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-24 21:27:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2023-11-24 21:27:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1228. [2023-11-24 21:27:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 699 states have (on average 2.1587982832618025) internal successors, (1509), 1222 states have internal predecessors, (1509), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 21:27:59,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1517 transitions. [2023-11-24 21:27:59,095 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1517 transitions. Word has length 12 [2023-11-24 21:27:59,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:59,096 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1517 transitions. [2023-11-24 21:27:59,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2023-11-24 21:27:59,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1517 transitions. [2023-11-24 21:27:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 21:27:59,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:59,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:27:59,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:59,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:59,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-24 21:27:59,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:59,305 INFO L85 PathProgramCache]: Analyzing trace with hash 389355628, now seen corresponding path program 1 times [2023-11-24 21:27:59,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:59,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280796031] [2023-11-24 21:27:59,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:59,306 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 [2023-11-24 21:27:59,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:59,307 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:59,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7780b2bd-0904-404e-ab7b-506ee749910e/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:59,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:27:59,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:59,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:59,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:59,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280796031] [2023-11-24 21:27:59,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280796031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:59,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:59,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:27:59,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116120684] [2023-11-24 21:27:59,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:59,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:27:59,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:59,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:27:59,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:27:59,531 INFO L87 Difference]: Start difference. First operand 1228 states and 1517 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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)