./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:07:19,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:07:19,435 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 23:07:19,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:07:19,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:07:19,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:07:19,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:07:19,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:07:19,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:07:19,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:07:19,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:07:19,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:07:19,489 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:07:19,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:07:19,491 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:07:19,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:07:19,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:07:19,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:07:19,493 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 23:07:19,494 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 23:07:19,494 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 23:07:19,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:07:19,496 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:07:19,497 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:07:19,497 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:07:19,498 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:07:19,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:07:19,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:07:19,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:07:19,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:19,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:07:19,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:07:19,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:07:19,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:07:19,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:07:19,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:07:19,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:07:19,504 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:07:19,505 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_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2023-11-06 23:07:19,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:07:19,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:07:19,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:07:19,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:07:19,927 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:07:19,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-06 23:07:23,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:07:23,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:07:23,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-06 23:07:23,946 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data/e878a038e/1b133e9727c84ac4b24c922e2e5f3d87/FLAGd18e00ccc [2023-11-06 23:07:23,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data/e878a038e/1b133e9727c84ac4b24c922e2e5f3d87 [2023-11-06 23:07:23,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:07:23,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:07:23,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:23,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:07:23,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:07:23,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:23" (1/1) ... [2023-11-06 23:07:23,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecdf5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:23, skipping insertion in model container [2023-11-06 23:07:23,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:23" (1/1) ... [2023-11-06 23:07:24,114 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:07:24,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:24,898 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) [2023-11-06 23:07:24,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d2cd21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:24, skipping insertion in model container [2023-11-06 23:07:24,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:24,913 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 23:07:24,915 INFO L158 Benchmark]: Toolchain (without parser) took 936.48ms. Allocated memory is still 172.0MB. Free memory was 126.1MB in the beginning and 102.1MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 23:07:24,916 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 111.1MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:07:24,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.14ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 102.1MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 23:07:24,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 111.1MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 931.14ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 102.1MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:07:27,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:07:28,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 23:07:28,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:07:28,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:07:28,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:07:28,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:07:28,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:07:28,117 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:07:28,122 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:07:28,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:07:28,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:07:28,124 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:07:28,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:07:28,126 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:07:28,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:07:28,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:07:28,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:07:28,128 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 23:07:28,129 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 23:07:28,129 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 23:07:28,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:07:28,130 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:07:28,131 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:07:28,131 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:07:28,132 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:07:28,132 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:07:28,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:07:28,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:07:28,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:07:28,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:07:28,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:28,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:07:28,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:07:28,137 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:07:28,137 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:07:28,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:07:28,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:07:28,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:07:28,140 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:07:28,140 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:07:28,140 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_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2023-11-06 23:07:28,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:07:28,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:07:28,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:07:28,637 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:07:28,638 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:07:28,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-06 23:07:31,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:07:32,262 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:07:32,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-06 23:07:32,297 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data/c8f6bebfb/1938f9116e474c338e013997aca6130c/FLAG841e56c57 [2023-11-06 23:07:32,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/data/c8f6bebfb/1938f9116e474c338e013997aca6130c [2023-11-06 23:07:32,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:07:32,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:07:32,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:32,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:07:32,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:07:32,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:32" (1/1) ... [2023-11-06 23:07:32,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d9d27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:32, skipping insertion in model container [2023-11-06 23:07:32,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:32" (1/1) ... [2023-11-06 23:07:32,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:07:33,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:33,445 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 23:07:33,459 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:07:33,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:33,567 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:07:33,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:33,726 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:07:33,734 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:07:33,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33 WrapperNode [2023-11-06 23:07:33,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:33,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:33,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:07:33,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:07:33,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:33,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:33,879 INFO L138 Inliner]: procedures = 180, calls = 489, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1732 [2023-11-06 23:07:33,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:33,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:07:33,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:07:33,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:07:33,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:33,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:33,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:33,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:33,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:34,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:34,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:34,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:34,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:07:34,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:07:34,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:07:34,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:07:34,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (1/1) ... [2023-11-06 23:07:34,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:34,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:34,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:07:34,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:07:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 23:07:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 23:07:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 23:07:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 23:07:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 23:07:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 23:07:34,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 23:07:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 23:07:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:07:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:07:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:07:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:07:34,143 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 23:07:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:07:34,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:07:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 23:07:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:07:34,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:07:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:07:34,445 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:07:34,447 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:07:34,482 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 23:07:43,772 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:07:43,802 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:07:43,802 INFO L302 CfgBuilder]: Removed 100 assume(true) statements. [2023-11-06 23:07:43,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:07:43 BoogieIcfgContainer [2023-11-06 23:07:43,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:07:43,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:07:43,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:07:43,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:07:43,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:07:32" (1/3) ... [2023-11-06 23:07:43,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bb9505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:07:43, skipping insertion in model container [2023-11-06 23:07:43,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:33" (2/3) ... [2023-11-06 23:07:43,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bb9505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:07:43, skipping insertion in model container [2023-11-06 23:07:43,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:07:43" (3/3) ... [2023-11-06 23:07:43,825 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2023-11-06 23:07:43,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:07:43,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 931 error locations. [2023-11-06 23:07:43,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:07:43,963 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;@6e4fd1a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:07:43,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 931 error locations. [2023-11-06 23:07:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 1849 states, 907 states have (on average 2.2425578831312016) internal successors, (2034), 1839 states have internal predecessors, (2034), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 23:07:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 23:07:44,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:44,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:07:44,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:07:44,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:44,014 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2023-11-06 23:07:44,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:07:44,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593837192] [2023-11-06 23:07:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:44,029 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 [2023-11-06 23:07:44,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:07:44,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:07:44,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:44,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:07:44,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:44,414 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 [2023-11-06 23:07:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:07:44,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:44,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:07:44,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593837192] [2023-11-06 23:07:44,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593837192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:44,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:44,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:07:44,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697501111] [2023-11-06 23:07:44,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:44,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:44,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:07:44,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:44,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:44,484 INFO L87 Difference]: Start difference. First operand has 1849 states, 907 states have (on average 2.2425578831312016) internal successors, (2034), 1839 states have internal predecessors, (2034), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 23:07:48,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:48,984 INFO L93 Difference]: Finished difference Result 2094 states and 2239 transitions. [2023-11-06 23:07:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:48,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-06 23:07:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:49,018 INFO L225 Difference]: With dead ends: 2094 [2023-11-06 23:07:49,019 INFO L226 Difference]: Without dead ends: 2092 [2023-11-06 23:07:49,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:49,025 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 1375 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:49,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1842 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-06 23:07:49,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2023-11-06 23:07:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1816. [2023-11-06 23:07:49,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 977 states have (on average 1.9979529170931423) internal successors, (1952), 1806 states have internal predecessors, (1952), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:07:49,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 1976 transitions. [2023-11-06 23:07:49,214 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 1976 transitions. Word has length 5 [2023-11-06 23:07:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:49,215 INFO L495 AbstractCegarLoop]: Abstraction has 1816 states and 1976 transitions. [2023-11-06 23:07:49,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 23:07:49,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 1976 transitions. [2023-11-06 23:07:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 23:07:49,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:49,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:07:49,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:49,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:49,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:07:49,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2023-11-06 23:07:49,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:07:49,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964967516] [2023-11-06 23:07:49,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:49,424 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 [2023-11-06 23:07:49,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:07:49,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:07:49,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:49,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:07:49,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:49,625 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 [2023-11-06 23:07:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:07:49,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:49,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:07:49,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964967516] [2023-11-06 23:07:49,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964967516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:49,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:49,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:07:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086110050] [2023-11-06 23:07:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:49,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:07:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:49,661 INFO L87 Difference]: Start difference. First operand 1816 states and 1976 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 23:07:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:56,185 INFO L93 Difference]: Finished difference Result 2345 states and 2556 transitions. [2023-11-06 23:07:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:56,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-06 23:07:56,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:56,202 INFO L225 Difference]: With dead ends: 2345 [2023-11-06 23:07:56,202 INFO L226 Difference]: Without dead ends: 2345 [2023-11-06 23:07:56,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:56,205 INFO L413 NwaCegarLoop]: 1761 mSDtfsCounter, 751 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:56,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2575 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-06 23:07:56,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-11-06 23:07:56,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1976. [2023-11-06 23:07:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1147 states have (on average 1.972101133391456) internal successors, (2262), 1966 states have internal predecessors, (2262), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:07:56,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2286 transitions. [2023-11-06 23:07:56,278 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2286 transitions. Word has length 5 [2023-11-06 23:07:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:56,279 INFO L495 AbstractCegarLoop]: Abstraction has 1976 states and 2286 transitions. [2023-11-06 23:07:56,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-06 23:07:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2286 transitions. [2023-11-06 23:07:56,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 23:07:56,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:56,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:07:56,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-06 23:07:56,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:56,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:07:56,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:56,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1423857071, now seen corresponding path program 1 times [2023-11-06 23:07:56,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:07:56,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033360117] [2023-11-06 23:07:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:56,488 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 [2023-11-06 23:07:56,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:07:56,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:07:56,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:56,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:07:56,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:07:56,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:56,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:07:56,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033360117] [2023-11-06 23:07:56,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033360117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:56,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:56,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:07:56,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649411983] [2023-11-06 23:07:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:56,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:56,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:07:56,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:56,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:56,717 INFO L87 Difference]: Start difference. First operand 1976 states and 2286 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:07:56,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:56,944 INFO L93 Difference]: Finished difference Result 3552 states and 4153 transitions. [2023-11-06 23:07:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:56,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 23:07:56,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:56,972 INFO L225 Difference]: With dead ends: 3552 [2023-11-06 23:07:56,972 INFO L226 Difference]: Without dead ends: 3552 [2023-11-06 23:07:56,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:56,974 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 1383 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:07:56,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 4134 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 23:07:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2023-11-06 23:07:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 1978. [2023-11-06 23:07:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1149 states have (on average 1.9704090513489991) internal successors, (2264), 1968 states have internal predecessors, (2264), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:07:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2288 transitions. [2023-11-06 23:07:57,053 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2288 transitions. Word has length 6 [2023-11-06 23:07:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:57,053 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 2288 transitions. [2023-11-06 23:07:57,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:07:57,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2288 transitions. [2023-11-06 23:07:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 23:07:57,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:57,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:57,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:07:57,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:57,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:07:57,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610650, now seen corresponding path program 1 times [2023-11-06 23:07:57,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:07:57,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118701314] [2023-11-06 23:07:57,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:57,270 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 [2023-11-06 23:07:57,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:07:57,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:07:57,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:57,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:07:57,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:07:57,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:57,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:07:57,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118701314] [2023-11-06 23:07:57,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118701314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:57,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:57,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:07:57,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790065999] [2023-11-06 23:07:57,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:57,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:07:57,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:07:57,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:07:57,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:57,547 INFO L87 Difference]: Start difference. First operand 1978 states and 2288 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:07:57,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:57,616 INFO L93 Difference]: Finished difference Result 1936 states and 2245 transitions. [2023-11-06 23:07:57,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:07:57,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 23:07:57,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:57,631 INFO L225 Difference]: With dead ends: 1936 [2023-11-06 23:07:57,631 INFO L226 Difference]: Without dead ends: 1936 [2023-11-06 23:07:57,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:07:57,633 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 81 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 3472 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 [2023-11-06 23:07:57,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 3472 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:07:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2023-11-06 23:07:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2023-11-06 23:07:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1131 states have (on average 1.9637488947833774) internal successors, (2221), 1926 states have internal predecessors, (2221), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:07:57,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2245 transitions. [2023-11-06 23:07:57,693 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2245 transitions. Word has length 11 [2023-11-06 23:07:57,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:57,694 INFO L495 AbstractCegarLoop]: Abstraction has 1936 states and 2245 transitions. [2023-11-06 23:07:57,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:07:57,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2245 transitions. [2023-11-06 23:07:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 23:07:57,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:57,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:07:57,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:57,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:57,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:07:57,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:57,908 INFO L85 PathProgramCache]: Analyzing trace with hash 614317568, now seen corresponding path program 1 times [2023-11-06 23:07:57,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:07:57,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589554449] [2023-11-06 23:07:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:57,908 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 [2023-11-06 23:07:57,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:07:57,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:07:57,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:58,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:07:58,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:07:58,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:58,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:07:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589554449] [2023-11-06 23:07:58,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589554449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:58,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:58,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:07:58,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253758773] [2023-11-06 23:07:58,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:58,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:07:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:07:58,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:07:58,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:07:58,214 INFO L87 Difference]: Start difference. First operand 1936 states and 2245 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-06 23:07:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:07:58,359 INFO L93 Difference]: Finished difference Result 1915 states and 2217 transitions. [2023-11-06 23:07:58,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:07:58,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-11-06 23:07:58,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:07:58,372 INFO L225 Difference]: With dead ends: 1915 [2023-11-06 23:07:58,372 INFO L226 Difference]: Without dead ends: 1915 [2023-11-06 23:07:58,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:07:58,374 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 62 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 5147 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 [2023-11-06 23:07:58,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 5147 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:07:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2023-11-06 23:07:58,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1914. [2023-11-06 23:07:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1123 states have (on average 1.9519145146927872) internal successors, (2192), 1904 states have internal predecessors, (2192), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:07:58,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2216 transitions. [2023-11-06 23:07:58,435 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2216 transitions. Word has length 13 [2023-11-06 23:07:58,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:07:58,435 INFO L495 AbstractCegarLoop]: Abstraction has 1914 states and 2216 transitions. [2023-11-06 23:07:58,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-06 23:07:58,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2216 transitions. [2023-11-06 23:07:58,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-06 23:07:58,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:07:58,437 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] [2023-11-06 23:07:58,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:07:58,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:58,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:07:58,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:07:58,652 INFO L85 PathProgramCache]: Analyzing trace with hash -957630610, now seen corresponding path program 1 times [2023-11-06 23:07:58,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:07:58,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642138361] [2023-11-06 23:07:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:07:58,653 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 [2023-11-06 23:07:58,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:07:58,654 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:07:58,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:07:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:07:58,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:07:58,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:07:58,912 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 [2023-11-06 23:07:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:07:59,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:07:59,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:07:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642138361] [2023-11-06 23:07:59,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642138361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:07:59,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:07:59,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:07:59,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590622513] [2023-11-06 23:07:59,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:07:59,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:07:59,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:07:59,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:07:59,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:07:59,036 INFO L87 Difference]: Start difference. First operand 1914 states and 2216 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-06 23:08:05,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:05,067 INFO L93 Difference]: Finished difference Result 2187 states and 2474 transitions. [2023-11-06 23:08:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:05,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-11-06 23:08:05,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:05,079 INFO L225 Difference]: With dead ends: 2187 [2023-11-06 23:08:05,080 INFO L226 Difference]: Without dead ends: 2187 [2023-11-06 23:08:05,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:05,081 INFO L413 NwaCegarLoop]: 1074 mSDtfsCounter, 1304 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:05,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 2346 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-06 23:08:05,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2023-11-06 23:08:05,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1910. [2023-11-06 23:08:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1123 states have (on average 1.9483526268922529) internal successors, (2188), 1900 states have internal predecessors, (2188), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:08:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2212 transitions. [2023-11-06 23:08:05,166 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2212 transitions. Word has length 27 [2023-11-06 23:08:05,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:05,167 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2212 transitions. [2023-11-06 23:08:05,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-06 23:08:05,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2212 transitions. [2023-11-06 23:08:05,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-06 23:08:05,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:05,169 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] [2023-11-06 23:08:05,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:05,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:05,382 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:05,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash -957630609, now seen corresponding path program 1 times [2023-11-06 23:08:05,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:05,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229378473] [2023-11-06 23:08:05,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:05,385 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 [2023-11-06 23:08:05,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:05,387 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:05,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:05,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:08:05,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:05,686 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 [2023-11-06 23:08:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:05,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:05,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:05,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229378473] [2023-11-06 23:08:05,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229378473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:05,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:05,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:05,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606427115] [2023-11-06 23:08:05,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:05,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:05,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:05,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:05,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:05,930 INFO L87 Difference]: Start difference. First operand 1910 states and 2212 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-06 23:08:13,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:13,314 INFO L93 Difference]: Finished difference Result 2276 states and 2479 transitions. [2023-11-06 23:08:13,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:13,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-11-06 23:08:13,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:13,329 INFO L225 Difference]: With dead ends: 2276 [2023-11-06 23:08:13,330 INFO L226 Difference]: Without dead ends: 2276 [2023-11-06 23:08:13,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:13,331 INFO L413 NwaCegarLoop]: 1466 mSDtfsCounter, 682 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:13,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 3114 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-06 23:08:13,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2023-11-06 23:08:13,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1906. [2023-11-06 23:08:13,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1906 states, 1123 states have (on average 1.9447907390917185) internal successors, (2184), 1896 states have internal predecessors, (2184), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:08:13,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2208 transitions. [2023-11-06 23:08:13,386 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2208 transitions. Word has length 27 [2023-11-06 23:08:13,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:13,387 INFO L495 AbstractCegarLoop]: Abstraction has 1906 states and 2208 transitions. [2023-11-06 23:08:13,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-06 23:08:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2208 transitions. [2023-11-06 23:08:13,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 23:08:13,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:13,390 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] [2023-11-06 23:08:13,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:13,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:13,604 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:13,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:13,605 INFO L85 PathProgramCache]: Analyzing trace with hash -3860248, now seen corresponding path program 1 times [2023-11-06 23:08:13,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:13,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546211423] [2023-11-06 23:08:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:13,606 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 [2023-11-06 23:08:13,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:13,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:13,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:13,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:08:13,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:13,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:13,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:13,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546211423] [2023-11-06 23:08:13,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546211423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:13,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:13,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:08:13,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342487530] [2023-11-06 23:08:13,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:13,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:13,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:13,957 INFO L87 Difference]: Start difference. First operand 1906 states and 2208 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2023-11-06 23:08:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:14,077 INFO L93 Difference]: Finished difference Result 1900 states and 2198 transitions. [2023-11-06 23:08:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:14,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2023-11-06 23:08:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:14,089 INFO L225 Difference]: With dead ends: 1900 [2023-11-06 23:08:14,089 INFO L226 Difference]: Without dead ends: 1900 [2023-11-06 23:08:14,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:14,090 INFO L413 NwaCegarLoop]: 1721 mSDtfsCounter, 31 mSDsluCounter, 3404 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:14,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 5125 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:08:14,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2023-11-06 23:08:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1900. [2023-11-06 23:08:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1117 states have (on average 1.946284691136974) internal successors, (2174), 1890 states have internal predecessors, (2174), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:08:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2198 transitions. [2023-11-06 23:08:14,138 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2198 transitions. Word has length 43 [2023-11-06 23:08:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:14,139 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2198 transitions. [2023-11-06 23:08:14,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2023-11-06 23:08:14,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2198 transitions. [2023-11-06 23:08:14,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 23:08:14,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:14,144 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] [2023-11-06 23:08:14,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:14,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:14,358 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:14,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:14,359 INFO L85 PathProgramCache]: Analyzing trace with hash 168131124, now seen corresponding path program 1 times [2023-11-06 23:08:14,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:14,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102508130] [2023-11-06 23:08:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:14,360 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 [2023-11-06 23:08:14,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:14,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:14,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:14,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:08:14,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:15,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:15,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:15,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102508130] [2023-11-06 23:08:15,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102508130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:15,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:15,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:15,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624639223] [2023-11-06 23:08:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:15,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:15,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:15,048 INFO L87 Difference]: Start difference. First operand 1900 states and 2198 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-06 23:08:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:15,344 INFO L93 Difference]: Finished difference Result 2324 states and 2639 transitions. [2023-11-06 23:08:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-11-06 23:08:15,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:15,359 INFO L225 Difference]: With dead ends: 2324 [2023-11-06 23:08:15,359 INFO L226 Difference]: Without dead ends: 2324 [2023-11-06 23:08:15,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:15,360 INFO L413 NwaCegarLoop]: 1807 mSDtfsCounter, 459 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:15,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 3409 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 23:08:15,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2023-11-06 23:08:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1947. [2023-11-06 23:08:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1164 states have (on average 1.9080756013745706) internal successors, (2221), 1937 states have internal predecessors, (2221), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:08:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 2245 transitions. [2023-11-06 23:08:15,412 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 2245 transitions. Word has length 51 [2023-11-06 23:08:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:15,412 INFO L495 AbstractCegarLoop]: Abstraction has 1947 states and 2245 transitions. [2023-11-06 23:08:15,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-06 23:08:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 2245 transitions. [2023-11-06 23:08:15,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 23:08:15,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:15,418 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] [2023-11-06 23:08:15,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:15,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:15,634 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:15,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:15,640 INFO L85 PathProgramCache]: Analyzing trace with hash 754975115, now seen corresponding path program 1 times [2023-11-06 23:08:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:15,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529070012] [2023-11-06 23:08:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:15,641 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 [2023-11-06 23:08:15,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:15,643 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:15,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:16,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 23:08:16,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:16,221 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 [2023-11-06 23:08:16,228 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 [2023-11-06 23:08:16,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:08:16,843 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 [2023-11-06 23:08:16,863 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:08:16,864 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 [2023-11-06 23:08:16,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:16,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:16,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:16,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529070012] [2023-11-06 23:08:16,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529070012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:16,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:16,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:08:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423883218] [2023-11-06 23:08:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:16,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:16,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:16,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:16,896 INFO L87 Difference]: Start difference. First operand 1947 states and 2245 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-06 23:08:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:23,387 INFO L93 Difference]: Finished difference Result 2139 states and 2422 transitions. [2023-11-06 23:08:23,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:23,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2023-11-06 23:08:23,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:23,400 INFO L225 Difference]: With dead ends: 2139 [2023-11-06 23:08:23,400 INFO L226 Difference]: Without dead ends: 2139 [2023-11-06 23:08:23,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:23,401 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 1539 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:23,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 1337 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-06 23:08:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-11-06 23:08:23,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1693. [2023-11-06 23:08:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 994 states have (on average 1.8269617706237424) internal successors, (1816), 1683 states have internal predecessors, (1816), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:08:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 1840 transitions. [2023-11-06 23:08:23,444 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 1840 transitions. Word has length 54 [2023-11-06 23:08:23,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:23,445 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 1840 transitions. [2023-11-06 23:08:23,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-06 23:08:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 1840 transitions. [2023-11-06 23:08:23,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 23:08:23,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:23,447 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] [2023-11-06 23:08:23,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:23,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:23,664 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:23,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100217, now seen corresponding path program 1 times [2023-11-06 23:08:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:23,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412670764] [2023-11-06 23:08:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:23,666 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 [2023-11-06 23:08:23,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:23,667 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:23,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:24,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:08:24,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:24,091 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 [2023-11-06 23:08:24,113 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 19 treesize of output 1 [2023-11-06 23:08:24,156 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:08:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:24,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:24,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:24,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412670764] [2023-11-06 23:08:24,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412670764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:24,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:24,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:08:24,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988240439] [2023-11-06 23:08:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:24,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:08:24,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:24,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:08:24,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:24,178 INFO L87 Difference]: Start difference. First operand 1693 states and 1840 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-11-06 23:08:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:30,470 INFO L93 Difference]: Finished difference Result 1692 states and 1839 transitions. [2023-11-06 23:08:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:08:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2023-11-06 23:08:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:30,481 INFO L225 Difference]: With dead ends: 1692 [2023-11-06 23:08:30,482 INFO L226 Difference]: Without dead ends: 1692 [2023-11-06 23:08:30,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:30,483 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 4 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:30,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4212 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-06 23:08:30,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2023-11-06 23:08:30,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1692. [2023-11-06 23:08:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 994 states have (on average 1.8259557344064385) internal successors, (1815), 1682 states have internal predecessors, (1815), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:08:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 1839 transitions. [2023-11-06 23:08:30,524 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 1839 transitions. Word has length 59 [2023-11-06 23:08:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:30,525 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 1839 transitions. [2023-11-06 23:08:30,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-11-06 23:08:30,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 1839 transitions. [2023-11-06 23:08:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 23:08:30,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:30,527 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] [2023-11-06 23:08:30,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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)] Ended with exit code 0 [2023-11-06 23:08:30,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:30,741 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:30,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:30,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100216, now seen corresponding path program 1 times [2023-11-06 23:08:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:30,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138116819] [2023-11-06 23:08:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:30,742 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 [2023-11-06 23:08:30,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:30,744 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:30,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:31,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 23:08:31,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:31,202 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 [2023-11-06 23:08:31,231 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 13 treesize of output 9 [2023-11-06 23:08:31,242 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 19 treesize of output 1 [2023-11-06 23:08:31,325 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-06 23:08:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:31,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:31,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:31,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138116819] [2023-11-06 23:08:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138116819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:31,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:31,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:08:31,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566520229] [2023-11-06 23:08:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:31,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:08:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:08:31,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:31,352 INFO L87 Difference]: Start difference. First operand 1692 states and 1839 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-11-06 23:08:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:39,560 INFO L93 Difference]: Finished difference Result 1691 states and 1838 transitions. [2023-11-06 23:08:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:08:39,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2023-11-06 23:08:39,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:39,569 INFO L225 Difference]: With dead ends: 1691 [2023-11-06 23:08:39,569 INFO L226 Difference]: Without dead ends: 1691 [2023-11-06 23:08:39,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:08:39,571 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 2 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4270 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:39,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4270 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-11-06 23:08:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2023-11-06 23:08:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2023-11-06 23:08:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 993 states have (on average 1.8267875125881168) internal successors, (1814), 1681 states have internal predecessors, (1814), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:08:39,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 1838 transitions. [2023-11-06 23:08:39,607 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 1838 transitions. Word has length 59 [2023-11-06 23:08:39,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:39,608 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 1838 transitions. [2023-11-06 23:08:39,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-11-06 23:08:39,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 1838 transitions. [2023-11-06 23:08:39,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-06 23:08:39,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:39,610 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, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:39,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:39,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:39,825 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:39,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:39,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1034240818, now seen corresponding path program 1 times [2023-11-06 23:08:39,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:39,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136589532] [2023-11-06 23:08:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:39,827 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 [2023-11-06 23:08:39,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:39,828 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:39,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:40,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:08:40,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:40,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:08:40,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:40,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136589532] [2023-11-06 23:08:40,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136589532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:40,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:40,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:08:40,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49990928] [2023-11-06 23:08:40,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:40,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:08:40,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:40,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:08:40,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:08:40,266 INFO L87 Difference]: Start difference. First operand 1691 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:08:40,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:40,373 INFO L93 Difference]: Finished difference Result 1694 states and 1843 transitions. [2023-11-06 23:08:40,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:08:40,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-11-06 23:08:40,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:40,394 INFO L225 Difference]: With dead ends: 1694 [2023-11-06 23:08:40,395 INFO L226 Difference]: Without dead ends: 1694 [2023-11-06 23:08:40,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:08:40,396 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 2 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:40,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4933 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:08:40,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-11-06 23:08:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1694. [2023-11-06 23:08:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 995 states have (on average 1.8261306532663317) internal successors, (1817), 1684 states have internal predecessors, (1817), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 23:08:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 1843 transitions. [2023-11-06 23:08:40,441 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 1843 transitions. Word has length 67 [2023-11-06 23:08:40,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:40,442 INFO L495 AbstractCegarLoop]: Abstraction has 1694 states and 1843 transitions. [2023-11-06 23:08:40,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:08:40,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 1843 transitions. [2023-11-06 23:08:40,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 23:08:40,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:40,443 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:40,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:40,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:40,660 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:40,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:40,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2024521026, now seen corresponding path program 1 times [2023-11-06 23:08:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:40,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797777328] [2023-11-06 23:08:40,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:40,662 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 [2023-11-06 23:08:40,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:40,663 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:40,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (15)] Waiting until timeout for monitored process [2023-11-06 23:08:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:41,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:08:41,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:41,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:41,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:41,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:41,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797777328] [2023-11-06 23:08:41,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797777328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:08:41,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:08:41,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 23:08:41,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806267312] [2023-11-06 23:08:41,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:08:41,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:08:41,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:41,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:08:41,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:08:41,227 INFO L87 Difference]: Start difference. First operand 1694 states and 1843 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:08:41,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:41,549 INFO L93 Difference]: Finished difference Result 1706 states and 1861 transitions. [2023-11-06 23:08:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:08:41,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2023-11-06 23:08:41,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:41,564 INFO L225 Difference]: With dead ends: 1706 [2023-11-06 23:08:41,572 INFO L226 Difference]: Without dead ends: 1706 [2023-11-06 23:08:41,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-06 23:08:41,573 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 12 mSDsluCounter, 6566 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8213 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:41,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8213 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 23:08:41,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-11-06 23:08:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1704. [2023-11-06 23:08:41,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1004 states have (on average 1.8247011952191234) internal successors, (1832), 1693 states have internal predecessors, (1832), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 23:08:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1858 transitions. [2023-11-06 23:08:41,629 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1858 transitions. Word has length 68 [2023-11-06 23:08:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:41,630 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 1858 transitions. [2023-11-06 23:08:41,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:08:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1858 transitions. [2023-11-06 23:08:41,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-06 23:08:41,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:41,632 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:41,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (15)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:41,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:41,846 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:41,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash -142296882, now seen corresponding path program 2 times [2023-11-06 23:08:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:41,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908733948] [2023-11-06 23:08:41,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:08:41,847 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 [2023-11-06 23:08:41,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:41,849 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:41,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (16)] Waiting until timeout for monitored process [2023-11-06 23:08:42,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:08:42,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:08:42,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 23:08:42,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:42,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:42,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:42,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908733948] [2023-11-06 23:08:42,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908733948] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:08:42,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:08:42,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-06 23:08:42,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495456198] [2023-11-06 23:08:42,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:08:42,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 23:08:42,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:42,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 23:08:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:08:42,916 INFO L87 Difference]: Start difference. First operand 1704 states and 1858 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:08:43,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:43,959 INFO L93 Difference]: Finished difference Result 1725 states and 1892 transitions. [2023-11-06 23:08:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 23:08:43,960 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2023-11-06 23:08:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:43,966 INFO L225 Difference]: With dead ends: 1725 [2023-11-06 23:08:43,966 INFO L226 Difference]: Without dead ends: 1719 [2023-11-06 23:08:43,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=383, Unknown=0, NotChecked=0, Total=600 [2023-11-06 23:08:43,967 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 28 mSDsluCounter, 8214 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:43,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 9862 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:08:43,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2023-11-06 23:08:44,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1713. [2023-11-06 23:08:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1013 states have (on average 1.8193484698914117) internal successors, (1843), 1702 states have internal predecessors, (1843), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 23:08:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 1869 transitions. [2023-11-06 23:08:44,009 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 1869 transitions. Word has length 71 [2023-11-06 23:08:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:44,010 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 1869 transitions. [2023-11-06 23:08:44,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:08:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 1869 transitions. [2023-11-06 23:08:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 23:08:44,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:44,011 INFO L195 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:44,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (16)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:44,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:44,225 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:44,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1998359858, now seen corresponding path program 3 times [2023-11-06 23:08:44,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:44,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359794774] [2023-11-06 23:08:44,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 23:08:44,226 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 [2023-11-06 23:08:44,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:44,228 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:44,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (17)] Waiting until timeout for monitored process [2023-11-06 23:08:45,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 23:08:45,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:08:45,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 23:08:45,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:45,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:46,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:46,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359794774] [2023-11-06 23:08:46,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359794774] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:08:46,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:08:46,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-06 23:08:46,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512225936] [2023-11-06 23:08:46,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:08:46,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 23:08:46,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:46,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 23:08:46,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-06 23:08:46,212 INFO L87 Difference]: Start difference. First operand 1713 states and 1869 transitions. Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:08:50,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:08:50,055 INFO L93 Difference]: Finished difference Result 1753 states and 1946 transitions. [2023-11-06 23:08:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-06 23:08:50,056 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 77 [2023-11-06 23:08:50,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:08:50,062 INFO L225 Difference]: With dead ends: 1753 [2023-11-06 23:08:50,062 INFO L226 Difference]: Without dead ends: 1747 [2023-11-06 23:08:50,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2023-11-06 23:08:50,064 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 56 mSDsluCounter, 21401 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 23054 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:08:50,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 23054 Invalid, 1082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-06 23:08:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2023-11-06 23:08:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1731. [2023-11-06 23:08:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1031 states have (on average 1.809893307468477) internal successors, (1866), 1720 states have internal predecessors, (1866), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 23:08:50,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 1892 transitions. [2023-11-06 23:08:50,107 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 1892 transitions. Word has length 77 [2023-11-06 23:08:50,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:08:50,107 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 1892 transitions. [2023-11-06 23:08:50,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:08:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 1892 transitions. [2023-11-06 23:08:50,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 23:08:50,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:50,109 INFO L195 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:50,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (17)] Forceful destruction successful, exit code 0 [2023-11-06 23:08:50,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:08:50,327 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:08:50,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 166094542, now seen corresponding path program 4 times [2023-11-06 23:08:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:08:50,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590525190] [2023-11-06 23:08:50,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 23:08:50,328 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 [2023-11-06 23:08:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:08:50,330 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:08:50,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (18)] Waiting until timeout for monitored process [2023-11-06 23:08:50,883 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 23:08:50,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:08:50,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 23:08:50,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:08:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:51,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:08:53,705 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:08:53,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:08:53,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590525190] [2023-11-06 23:08:53,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590525190] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:08:53,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:08:53,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-06 23:08:53,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981029493] [2023-11-06 23:08:53,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:08:53,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-06 23:08:53,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:08:53,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-06 23:08:53,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 23:08:53,710 INFO L87 Difference]: Start difference. First operand 1731 states and 1892 transitions. Second operand has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:09:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:05,834 INFO L93 Difference]: Finished difference Result 1809 states and 2022 transitions. [2023-11-06 23:09:05,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-11-06 23:09:05,835 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2023-11-06 23:09:05,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:05,839 INFO L225 Difference]: With dead ends: 1809 [2023-11-06 23:09:05,839 INFO L226 Difference]: Without dead ends: 1805 [2023-11-06 23:09:05,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1342 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=3742, Invalid=9140, Unknown=0, NotChecked=0, Total=12882 [2023-11-06 23:09:05,844 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 76 mSDsluCounter, 38209 mSDsCounter, 0 mSdLazyCounter, 2928 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 39875 SdHoareTripleChecker+Invalid, 3022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:05,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 39875 Invalid, 3022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 2928 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-06 23:09:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2023-11-06 23:09:05,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1765. [2023-11-06 23:09:05,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1065 states have (on average 1.7953051643192488) internal successors, (1912), 1754 states have internal predecessors, (1912), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 23:09:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 1938 transitions. [2023-11-06 23:09:05,882 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 1938 transitions. Word has length 89 [2023-11-06 23:09:05,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:05,883 INFO L495 AbstractCegarLoop]: Abstraction has 1765 states and 1938 transitions. [2023-11-06 23:09:05,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:09:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 1938 transitions. [2023-11-06 23:09:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 23:09:05,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:05,885 INFO L195 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:05,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (18)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:06,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:09:06,101 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:09:06,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:06,102 INFO L85 PathProgramCache]: Analyzing trace with hash 922128590, now seen corresponding path program 5 times [2023-11-06 23:09:06,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:09:06,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802819085] [2023-11-06 23:09:06,102 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 23:09:06,103 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 [2023-11-06 23:09:06,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:09:06,104 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:09:06,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (19)] Waiting until timeout for monitored process [2023-11-06 23:09:07,675 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 23:09:07,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:09:07,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-06 23:09:07,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:07,734 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 [2023-11-06 23:09:07,896 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 23:09:07,896 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 23:09:07,947 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:09:08,059 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 23:09:09,546 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:09:09,546 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 23:09:09,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 23:09:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:09:09,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:09:12,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:09:12,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802819085] [2023-11-06 23:09:12,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802819085] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:09:12,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1190726470] [2023-11-06 23:09:12,337 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 23:09:12,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 23:09:12,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 23:09:12,340 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 23:09:12,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-06 23:10:27,537 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 23:10:27,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:10:27,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-06 23:10:27,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:27,792 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 [2023-11-06 23:10:28,012 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 23:10:28,013 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 23:10:28,058 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:10:28,149 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 23:10:29,548 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:10:29,549 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 23:10:29,612 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 23:10:29,628 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:10:29,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:10:32,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1190726470] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:10:32,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:10:32,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-06 23:10:32,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127771172] [2023-11-06 23:10:32,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:10:32,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:10:32,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:10:32,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:10:32,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=99, Unknown=3, NotChecked=0, Total=132 [2023-11-06 23:10:32,285 INFO L87 Difference]: Start difference. First operand 1765 states and 1938 transitions. Second operand has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:10:44,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:44,957 INFO L93 Difference]: Finished difference Result 2093 states and 2254 transitions. [2023-11-06 23:10:44,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:10:44,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2023-11-06 23:10:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:44,976 INFO L225 Difference]: With dead ends: 2093 [2023-11-06 23:10:44,976 INFO L226 Difference]: Without dead ends: 2089 [2023-11-06 23:10:44,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 214 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=49, Invalid=158, Unknown=3, NotChecked=0, Total=210 [2023-11-06 23:10:44,977 INFO L413 NwaCegarLoop]: 1063 mSDtfsCounter, 1143 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 5037 SdHoareTripleChecker+Invalid, 4382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:44,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 5037 Invalid, 4382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-11-06 23:10:44,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2023-11-06 23:10:45,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1813. [2023-11-06 23:10:45,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1113 states have (on average 1.7610062893081762) internal successors, (1960), 1801 states have internal predecessors, (1960), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 23:10:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 1986 transitions. [2023-11-06 23:10:45,011 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 1986 transitions. Word has length 111 [2023-11-06 23:10:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:45,011 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 1986 transitions. [2023-11-06 23:10:45,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:10:45,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 1986 transitions. [2023-11-06 23:10:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 23:10:45,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:45,013 INFO L195 NwaCegarLoop]: trace histogram [44, 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, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:45,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:45,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (19)] Forceful destruction successful, exit code 0 [2023-11-06 23:10:45,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 23:10:45,438 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 23:10:45,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:45,439 INFO L85 PathProgramCache]: Analyzing trace with hash 922128591, now seen corresponding path program 1 times [2023-11-06 23:10:45,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:10:45,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555717580] [2023-11-06 23:10:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:45,440 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 [2023-11-06 23:10:45,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:10:45,441 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 23:10:45,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/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 (21)] Waiting until timeout for monitored process [2023-11-06 23:10:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:46,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-06 23:10:46,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:10:46,378 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 [2023-11-06 23:10:46,536 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:10:46,536 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 [2023-11-06 23:10:46,547 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:10:46,576 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 13 treesize of output 9 [2023-11-06 23:10:46,596 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:10:46,727 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-06 23:10:46,732 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2023-11-06 23:10:47,647 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:10:47,648 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-06 23:10:47,664 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13 [2023-11-06 23:10:47,716 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-06 23:10:47,725 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2023-11-06 23:10:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:10:47,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:10:49,436 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2666 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2665 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2665) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2666) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2665 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2665) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd .cse1 (_ bv20 32))))))) is different from false [2023-11-06 23:10:49,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:10:49,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555717580] [2023-11-06 23:10:49,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555717580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:10:49,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1165315736] [2023-11-06 23:10:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:49,444 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 23:10:49,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 23:10:49,446 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 23:10:49,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793a2540-2993-4149-8049-5a48c61cd8a7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process