./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl --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 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:06:57,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:06:57,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:06:57,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:06:57,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:06:57,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:06:57,873 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:06:57,874 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:06:57,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:06:57,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:06:57,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:06:57,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:06:57,882 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:06:57,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:06:57,885 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:06:57,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:06:57,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:06:57,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:06:57,887 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:06:57,887 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:06:57,888 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:06:57,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:06:57,891 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:06:57,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:06:57,892 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:06:57,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:06:57,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:06:57,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:06:57,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:06:57,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:06:57,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:06:57,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:06:57,897 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:06:57,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:06:57,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:06:57,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:06:57,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:06:57,899 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:06:57,899 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_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 [2023-11-12 02:06:58,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:06:58,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:06:58,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:06:58,307 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:06:58,308 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:06:58,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2023-11-12 02:07:01,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:07:01,852 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:07:01,852 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2023-11-12 02:07:01,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data/074cd61ce/f01fa8296ae0470c8e965e26eeda4906/FLAG044780354 [2023-11-12 02:07:01,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data/074cd61ce/f01fa8296ae0470c8e965e26eeda4906 [2023-11-12 02:07:01,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:07:01,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:07:01,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:01,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:07:01,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:07:01,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:01" (1/1) ... [2023-11-12 02:07:01,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591a607e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:01, skipping insertion in model container [2023-11-12 02:07:01,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:01" (1/1) ... [2023-11-12 02:07:02,029 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:02,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:02,746 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) [2023-11-12 02:07:02,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6be6bd2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:02, skipping insertion in model container [2023-11-12 02:07:02,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:02,756 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:07:02,759 INFO L158 Benchmark]: Toolchain (without parser) took 848.37ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 70.0MB in the beginning and 144.4MB in the end (delta: -74.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:07:02,759 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 105.7MB in the beginning and 105.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:07:02,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 843.65ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 69.7MB in the beginning and 144.4MB in the end (delta: -74.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:07:02,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 105.7MB in the beginning and 105.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 843.65ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 69.7MB in the beginning and 144.4MB in the end (delta: -74.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl --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 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:07:05,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:07:05,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:07:05,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:07:05,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:07:05,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:07:05,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:07:05,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:07:05,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:07:05,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:07:05,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:07:05,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:07:05,470 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:07:05,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:07:05,472 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:07:05,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:07:05,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:07:05,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:07:05,474 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:07:05,475 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:07:05,475 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:07:05,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:07:05,476 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:07:05,477 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:07:05,477 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:07:05,477 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:07:05,478 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:07:05,478 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:07:05,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:07:05,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:07:05,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:07:05,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:05,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:07:05,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:07:05,483 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:07:05,483 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:07:05,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:07:05,483 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:07:05,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:07:05,485 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:07:05,485 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:07:05,486 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_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 [2023-11-12 02:07:05,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:07:05,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:07:05,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:07:05,966 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:07:05,967 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:07:05,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2023-11-12 02:07:09,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:07:09,737 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:07:09,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2023-11-12 02:07:09,790 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data/43236c035/66891579694548b4927ef8ad9d2ee1ec/FLAG516755e22 [2023-11-12 02:07:09,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/data/43236c035/66891579694548b4927ef8ad9d2ee1ec [2023-11-12 02:07:09,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:07:09,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:07:09,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:09,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:07:09,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:07:09,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:09" (1/1) ... [2023-11-12 02:07:09,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7599f367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:09, skipping insertion in model container [2023-11-12 02:07:09,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:09" (1/1) ... [2023-11-12 02:07:09,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:10,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:10,680 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:07:10,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:10,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:10,823 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:07:10,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:10,995 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:11,004 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:07:11,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11 WrapperNode [2023-11-12 02:07:11,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:11,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:11,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:07:11,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:07:11,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,186 INFO L138 Inliner]: procedures = 180, calls = 287, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1047 [2023-11-12 02:07:11,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:11,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:07:11,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:07:11,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:07:11,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:07:11,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:07:11,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:07:11,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:07:11,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (1/1) ... [2023-11-12 02:07:11,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:11,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:11,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:11,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:07:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 02:07:11,407 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 02:07:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 02:07:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:07:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:07:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:07:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:07:11,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:07:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:07:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:07:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:07:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:07:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:07:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:07:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:07:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:07:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:07:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:07:11,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:07:11,632 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:07:11,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:07:11,680 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:07:17,393 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:07:17,407 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:07:17,408 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-12 02:07:17,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:17 BoogieIcfgContainer [2023-11-12 02:07:17,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:07:17,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:07:17,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:07:17,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:07:17,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:07:09" (1/3) ... [2023-11-12 02:07:17,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:17, skipping insertion in model container [2023-11-12 02:07:17,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:11" (2/3) ... [2023-11-12 02:07:17,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681258c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:17, skipping insertion in model container [2023-11-12 02:07:17,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:17" (3/3) ... [2023-11-12 02:07:17,425 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-1.i [2023-11-12 02:07:17,445 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:07:17,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 533 error locations. [2023-11-12 02:07:17,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:07:17,536 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;@5206dc2a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:07:17,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 533 error locations. [2023-11-12 02:07:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 539 states have (on average 2.222634508348794) internal successors, (1198), 1076 states have internal predecessors, (1198), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 02:07:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 02:07:17,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:17,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 02:07:17,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:17,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-12 02:07:17,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742528376] [2023-11-12 02:07:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:17,579 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 [2023-11-12 02:07:17,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:17,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:17,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:17,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:07:17,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:17,829 INFO L351 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 [2023-11-12 02:07:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:17,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:17,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:17,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742528376] [2023-11-12 02:07:17,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742528376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:17,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:17,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:07:17,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578392928] [2023-11-12 02:07:17,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:17,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:07:17,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:17,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:07:17,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:17,922 INFO L87 Difference]: Start difference. First operand has 1083 states, 539 states have (on average 2.222634508348794) internal successors, (1198), 1076 states have internal predecessors, (1198), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:20,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:20,257 INFO L93 Difference]: Finished difference Result 1080 states and 1145 transitions. [2023-11-12 02:07:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:07:20,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-12 02:07:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:20,281 INFO L225 Difference]: With dead ends: 1080 [2023-11-12 02:07:20,282 INFO L226 Difference]: Without dead ends: 1078 [2023-11-12 02:07:20,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:20,287 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 996 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:20,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 721 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-12 02:07:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-11-12 02:07:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1069. [2023-11-12 02:07:20,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 541 states have (on average 2.0646950092421443) internal successors, (1117), 1062 states have internal predecessors, (1117), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1135 transitions. [2023-11-12 02:07:20,398 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1135 transitions. Word has length 3 [2023-11-12 02:07:20,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:20,398 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1135 transitions. [2023-11-12 02:07:20,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:20,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1135 transitions. [2023-11-12 02:07:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 02:07:20,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:20,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 02:07:20,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:20,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:20,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:20,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:20,613 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-12 02:07:20,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:20,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498808309] [2023-11-12 02:07:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:20,615 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 [2023-11-12 02:07:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:20,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:20,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:20,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:20,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:20,776 INFO L351 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 [2023-11-12 02:07:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:20,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:20,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:20,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498808309] [2023-11-12 02:07:20,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498808309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:20,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:20,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:07:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872835453] [2023-11-12 02:07:20,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:20,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:07:20,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:07:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:20,802 INFO L87 Difference]: Start difference. First operand 1069 states and 1135 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:24,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:24,918 INFO L93 Difference]: Finished difference Result 1483 states and 1590 transitions. [2023-11-12 02:07:24,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:07:24,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-12 02:07:24,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:24,928 INFO L225 Difference]: With dead ends: 1483 [2023-11-12 02:07:24,928 INFO L226 Difference]: Without dead ends: 1483 [2023-11-12 02:07:24,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:24,930 INFO L413 NwaCegarLoop]: 940 mSDtfsCounter, 444 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:24,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1537 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-12 02:07:24,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2023-11-12 02:07:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1274. [2023-11-12 02:07:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 747 states have (on average 2.0535475234270417) internal successors, (1534), 1267 states have internal predecessors, (1534), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1552 transitions. [2023-11-12 02:07:24,979 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1552 transitions. Word has length 3 [2023-11-12 02:07:24,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:24,979 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 1552 transitions. [2023-11-12 02:07:24,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1552 transitions. [2023-11-12 02:07:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:07:24,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:24,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:24,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:25,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:25,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:25,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:25,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2023-11-12 02:07:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572262758] [2023-11-12 02:07:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:25,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:07:25,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:25,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:25,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:25,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:07:25,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:25,410 INFO L351 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 [2023-11-12 02:07:25,418 INFO L351 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 [2023-11-12 02:07:25,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:07:25,525 INFO L351 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 [2023-11-12 02:07:25,552 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 02:07:25,552 INFO L351 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 [2023-11-12 02:07:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:25,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:25,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:25,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572262758] [2023-11-12 02:07:25,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572262758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:25,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:25,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:07:25,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369223248] [2023-11-12 02:07:25,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:25,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:25,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:25,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:25,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:25,586 INFO L87 Difference]: Start difference. First operand 1274 states and 1552 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2023-11-12 02:07:29,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:29,085 INFO L93 Difference]: Finished difference Result 1277 states and 1557 transitions. [2023-11-12 02:07:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:29,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2023-11-12 02:07:29,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:29,094 INFO L225 Difference]: With dead ends: 1277 [2023-11-12 02:07:29,094 INFO L226 Difference]: Without dead ends: 1277 [2023-11-12 02:07:29,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:29,096 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1088 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:29,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 436 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-12 02:07:29,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2023-11-12 02:07:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1058. [2023-11-12 02:07:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 541 states have (on average 2.042513863216266) internal successors, (1105), 1051 states have internal predecessors, (1105), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:29,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1123 transitions. [2023-11-12 02:07:29,128 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1123 transitions. Word has length 7 [2023-11-12 02:07:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:29,129 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1123 transitions. [2023-11-12 02:07:29,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2023-11-12 02:07:29,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1123 transitions. [2023-11-12 02:07:29,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:07:29,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:29,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:29,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-12 02:07:29,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:29,342 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:29,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:29,343 INFO L85 PathProgramCache]: Analyzing trace with hash 695763858, now seen corresponding path program 1 times [2023-11-12 02:07:29,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:29,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610718234] [2023-11-12 02:07:29,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:29,344 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 [2023-11-12 02:07:29,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:29,381 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:29,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:29,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:07:29,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:29,539 INFO L351 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 [2023-11-12 02:07:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:29,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:29,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:29,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610718234] [2023-11-12 02:07:29,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610718234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:29,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:29,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:07:29,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484431283] [2023-11-12 02:07:29,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:29,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:07:29,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:29,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:07:29,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:29,560 INFO L87 Difference]: Start difference. First operand 1058 states and 1123 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:07:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:32,605 INFO L93 Difference]: Finished difference Result 1389 states and 1484 transitions. [2023-11-12 02:07:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:07:32,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 02:07:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:32,629 INFO L225 Difference]: With dead ends: 1389 [2023-11-12 02:07:32,630 INFO L226 Difference]: Without dead ends: 1389 [2023-11-12 02:07:32,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:32,634 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 996 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:32,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1222 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-12 02:07:32,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2023-11-12 02:07:32,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1009. [2023-11-12 02:07:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 541 states have (on average 1.9519408502772644) internal successors, (1056), 1002 states have internal predecessors, (1056), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1074 transitions. [2023-11-12 02:07:32,670 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1074 transitions. Word has length 8 [2023-11-12 02:07:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:32,670 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1074 transitions. [2023-11-12 02:07:32,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:07:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1074 transitions. [2023-11-12 02:07:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:07:32,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:32,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:32,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:32,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:32,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:32,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:32,885 INFO L85 PathProgramCache]: Analyzing trace with hash 695763859, now seen corresponding path program 1 times [2023-11-12 02:07:32,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:32,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473975519] [2023-11-12 02:07:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:32,886 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 [2023-11-12 02:07:32,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:32,887 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:32,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:33,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:33,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:33,059 INFO L351 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 [2023-11-12 02:07:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:33,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:33,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:33,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473975519] [2023-11-12 02:07:33,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473975519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:33,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:33,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:07:33,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387736142] [2023-11-12 02:07:33,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:33,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:07:33,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:33,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:07:33,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:33,108 INFO L87 Difference]: Start difference. First operand 1009 states and 1074 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:07:37,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:37,044 INFO L93 Difference]: Finished difference Result 1470 states and 1568 transitions. [2023-11-12 02:07:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:07:37,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 02:07:37,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:37,053 INFO L225 Difference]: With dead ends: 1470 [2023-11-12 02:07:37,053 INFO L226 Difference]: Without dead ends: 1470 [2023-11-12 02:07:37,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:37,054 INFO L413 NwaCegarLoop]: 1176 mSDtfsCounter, 681 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:37,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1623 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-12 02:07:37,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2023-11-12 02:07:37,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1031. [2023-11-12 02:07:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 573 states have (on average 1.9406631762652704) internal successors, (1112), 1024 states have internal predecessors, (1112), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1130 transitions. [2023-11-12 02:07:37,085 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1130 transitions. Word has length 8 [2023-11-12 02:07:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:37,086 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1130 transitions. [2023-11-12 02:07:37,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:07:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1130 transitions. [2023-11-12 02:07:37,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:07:37,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:37,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:37,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:37,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:37,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:37,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash -748709626, now seen corresponding path program 1 times [2023-11-12 02:07:37,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:37,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988128726] [2023-11-12 02:07:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:37,300 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 [2023-11-12 02:07:37,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:37,301 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:37,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:37,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:07:37,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:37,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:37,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:37,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988128726] [2023-11-12 02:07:37,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988128726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:37,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:37,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:37,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347612895] [2023-11-12 02:07:37,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:37,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:37,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:37,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:37,557 INFO L87 Difference]: Start difference. First operand 1031 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:38,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:38,412 INFO L93 Difference]: Finished difference Result 1485 states and 1618 transitions. [2023-11-12 02:07:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:07:38,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:07:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:38,420 INFO L225 Difference]: With dead ends: 1485 [2023-11-12 02:07:38,420 INFO L226 Difference]: Without dead ends: 1485 [2023-11-12 02:07:38,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:38,421 INFO L413 NwaCegarLoop]: 1124 mSDtfsCounter, 551 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:38,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 3048 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 02:07:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-11-12 02:07:38,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1276. [2023-11-12 02:07:38,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 818 states have (on average 1.921760391198044) internal successors, (1572), 1269 states have internal predecessors, (1572), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:38,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1590 transitions. [2023-11-12 02:07:38,457 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1590 transitions. Word has length 11 [2023-11-12 02:07:38,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:38,458 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1590 transitions. [2023-11-12 02:07:38,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1590 transitions. [2023-11-12 02:07:38,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 02:07:38,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:38,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:38,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-12 02:07:38,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:38,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr531ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:38,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:38,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1735160665, now seen corresponding path program 1 times [2023-11-12 02:07:38,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:38,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977532211] [2023-11-12 02:07:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:38,672 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 [2023-11-12 02:07:38,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:38,673 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:38,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:38,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:38,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:38,883 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:07:38,884 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:07:38,885 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:07:38,889 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-12 02:07:38,957 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:07:38,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-12 02:07:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:38,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:38,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:38,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977532211] [2023-11-12 02:07:38,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977532211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:38,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:38,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:38,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485413974] [2023-11-12 02:07:38,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:38,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:38,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:38,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:38,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:38,984 INFO L87 Difference]: Start difference. First operand 1276 states and 1590 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-12 02:07:40,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:40,908 INFO L93 Difference]: Finished difference Result 1654 states and 2039 transitions. [2023-11-12 02:07:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2023-11-12 02:07:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:40,917 INFO L225 Difference]: With dead ends: 1654 [2023-11-12 02:07:40,917 INFO L226 Difference]: Without dead ends: 1654 [2023-11-12 02:07:40,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:40,918 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 377 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 2909 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:40,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 2909 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:07:40,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2023-11-12 02:07:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1275. [2023-11-12 02:07:40,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 817 states have (on average 1.9216646266829864) internal successors, (1570), 1268 states have internal predecessors, (1570), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1588 transitions. [2023-11-12 02:07:40,955 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1588 transitions. Word has length 12 [2023-11-12 02:07:40,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:40,955 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 1588 transitions. [2023-11-12 02:07:40,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-12 02:07:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1588 transitions. [2023-11-12 02:07:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:07:40,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:40,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:40,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:41,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:41,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:41,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:41,170 INFO L85 PathProgramCache]: Analyzing trace with hash -168464001, now seen corresponding path program 1 times [2023-11-12 02:07:41,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:41,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939348597] [2023-11-12 02:07:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:41,171 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 [2023-11-12 02:07:41,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:41,175 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:41,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:41,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:07:41,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:41,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:41,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:41,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939348597] [2023-11-12 02:07:41,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939348597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:41,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:41,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:07:41,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893209870] [2023-11-12 02:07:41,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:41,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:07:41,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:07:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:41,414 INFO L87 Difference]: Start difference. First operand 1275 states and 1588 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-12 02:07:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:41,455 INFO L93 Difference]: Finished difference Result 1215 states and 1502 transitions. [2023-11-12 02:07:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:07:41,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-11-12 02:07:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:41,463 INFO L225 Difference]: With dead ends: 1215 [2023-11-12 02:07:41,463 INFO L226 Difference]: Without dead ends: 1215 [2023-11-12 02:07:41,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:07:41,464 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 81 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:41,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1930 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:07:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2023-11-12 02:07:41,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2023-11-12 02:07:41,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 781 states have (on average 1.9001280409731114) internal successors, (1484), 1208 states have internal predecessors, (1484), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1502 transitions. [2023-11-12 02:07:41,502 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1502 transitions. Word has length 18 [2023-11-12 02:07:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:41,503 INFO L495 AbstractCegarLoop]: Abstraction has 1215 states and 1502 transitions. [2023-11-12 02:07:41,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-12 02:07:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1502 transitions. [2023-11-12 02:07:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:07:41,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:41,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:41,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:41,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:41,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:41,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:41,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1314847992, now seen corresponding path program 1 times [2023-11-12 02:07:41,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:41,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066781203] [2023-11-12 02:07:41,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:41,721 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 [2023-11-12 02:07:41,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:41,722 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:41,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-12 02:07:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:41,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:07:41,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:41,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:41,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:41,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066781203] [2023-11-12 02:07:41,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066781203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:41,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:41,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:41,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645074224] [2023-11-12 02:07:41,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:41,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:41,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:41,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:41,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:41,982 INFO L87 Difference]: Start difference. First operand 1215 states and 1502 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-12 02:07:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:42,078 INFO L93 Difference]: Finished difference Result 1187 states and 1446 transitions. [2023-11-12 02:07:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:42,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2023-11-12 02:07:42,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:42,085 INFO L225 Difference]: With dead ends: 1187 [2023-11-12 02:07:42,085 INFO L226 Difference]: Without dead ends: 1187 [2023-11-12 02:07:42,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:42,086 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 62 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:42,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2834 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:07:42,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-11-12 02:07:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1185. [2023-11-12 02:07:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 765 states have (on average 1.8640522875816994) internal successors, (1426), 1178 states have internal predecessors, (1426), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1444 transitions. [2023-11-12 02:07:42,117 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1444 transitions. Word has length 20 [2023-11-12 02:07:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:42,118 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1444 transitions. [2023-11-12 02:07:42,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-12 02:07:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1444 transitions. [2023-11-12 02:07:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:07:42,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:42,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:42,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:42,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:42,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:42,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:42,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685766, now seen corresponding path program 1 times [2023-11-12 02:07:42,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:42,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265002523] [2023-11-12 02:07:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:42,339 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 [2023-11-12 02:07:42,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:42,340 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:42,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-12 02:07:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:42,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:07:42,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:42,569 INFO L351 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 [2023-11-12 02:07:42,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:42,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:42,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:42,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265002523] [2023-11-12 02:07:42,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265002523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:42,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:42,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:07:42,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213212489] [2023-11-12 02:07:42,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:42,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:42,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:42,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:42,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:42,669 INFO L87 Difference]: Start difference. First operand 1185 states and 1444 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-12 02:07:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:45,824 INFO L93 Difference]: Finished difference Result 1638 states and 2019 transitions. [2023-11-12 02:07:45,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:45,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2023-11-12 02:07:45,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:45,836 INFO L225 Difference]: With dead ends: 1638 [2023-11-12 02:07:45,836 INFO L226 Difference]: Without dead ends: 1638 [2023-11-12 02:07:45,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:45,837 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 921 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:45,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 1232 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-12 02:07:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2023-11-12 02:07:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1181. [2023-11-12 02:07:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 765 states have (on average 1.8535947712418301) internal successors, (1418), 1174 states have internal predecessors, (1418), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1436 transitions. [2023-11-12 02:07:45,870 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1436 transitions. Word has length 34 [2023-11-12 02:07:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:45,871 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1436 transitions. [2023-11-12 02:07:45,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-12 02:07:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1436 transitions. [2023-11-12 02:07:45,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:07:45,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:45,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:45,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:46,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:46,087 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:46,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:46,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685767, now seen corresponding path program 1 times [2023-11-12 02:07:46,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:46,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002302592] [2023-11-12 02:07:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:46,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:07:46,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:46,089 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:46,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-12 02:07:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:46,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:07:46,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:46,330 INFO L351 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 [2023-11-12 02:07:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:46,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:46,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002302592] [2023-11-12 02:07:46,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002302592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:46,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:46,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:07:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579482151] [2023-11-12 02:07:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:46,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:46,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:46,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:46,602 INFO L87 Difference]: Start difference. First operand 1181 states and 1436 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-12 02:07:51,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:51,167 INFO L93 Difference]: Finished difference Result 1773 states and 2179 transitions. [2023-11-12 02:07:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:51,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2023-11-12 02:07:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:51,182 INFO L225 Difference]: With dead ends: 1773 [2023-11-12 02:07:51,182 INFO L226 Difference]: Without dead ends: 1773 [2023-11-12 02:07:51,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:51,183 INFO L413 NwaCegarLoop]: 1216 mSDtfsCounter, 608 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:51,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 2425 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-12 02:07:51,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-11-12 02:07:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1177. [2023-11-12 02:07:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 765 states have (on average 1.8431372549019607) internal successors, (1410), 1170 states have internal predecessors, (1410), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1428 transitions. [2023-11-12 02:07:51,214 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1428 transitions. Word has length 34 [2023-11-12 02:07:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:51,216 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 1428 transitions. [2023-11-12 02:07:51,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-12 02:07:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1428 transitions. [2023-11-12 02:07:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-12 02:07:51,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:51,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:51,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:51,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:51,437 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:51,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:51,438 INFO L85 PathProgramCache]: Analyzing trace with hash -585509776, now seen corresponding path program 1 times [2023-11-12 02:07:51,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:51,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042033746] [2023-11-12 02:07:51,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:51,439 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 [2023-11-12 02:07:51,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:51,440 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:51,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-12 02:07:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:51,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:07:51,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:07:51,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:51,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:07:51,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:07:51,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042033746] [2023-11-12 02:07:51,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042033746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:51,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:51,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:07:51,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554650945] [2023-11-12 02:07:51,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:51,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:51,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:07:51,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:51,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:51,829 INFO L87 Difference]: Start difference. First operand 1177 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-11-12 02:07:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:07:51,909 INFO L93 Difference]: Finished difference Result 1165 states and 1408 transitions. [2023-11-12 02:07:51,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2023-11-12 02:07:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:07:51,916 INFO L225 Difference]: With dead ends: 1165 [2023-11-12 02:07:51,917 INFO L226 Difference]: Without dead ends: 1165 [2023-11-12 02:07:51,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:07:51,918 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 31 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:07:51,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2812 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:07:51,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2023-11-12 02:07:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1165. [2023-11-12 02:07:51,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 753 states have (on average 1.845949535192563) internal successors, (1390), 1158 states have internal predecessors, (1390), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:07:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1408 transitions. [2023-11-12 02:07:51,945 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1408 transitions. Word has length 53 [2023-11-12 02:07:51,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:07:51,945 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1408 transitions. [2023-11-12 02:07:51,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-11-12 02:07:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1408 transitions. [2023-11-12 02:07:51,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 02:07:51,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:07:51,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:51,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:07:52,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:07:52,161 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:07:52,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:52,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1514336476, now seen corresponding path program 1 times [2023-11-12 02:07:52,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:07:52,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874457255] [2023-11-12 02:07:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:52,163 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 [2023-11-12 02:07:52,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:07:52,164 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:07:52,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_902f65ef-41bf-4e99-afaf-df4006789615/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process