./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uname-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uname-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 64bit --witnessprinter.graph.data.programhash 006d2db5d9e8a2a73a70ddf8f267501f17e7fb93705a7d85140217cd054b3553 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:13,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:13,920 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-06 22:22:13,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:13,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:13,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:13,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:13,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:13,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:13,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:13,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:13,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:13,960 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:13,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:13,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:13,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:13,963 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:22:13,963 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:22:13,964 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:22:13,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:13,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:22:13,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:13,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:13,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:13,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:13,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:13,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:13,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:13,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:13,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:13,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:13,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:13,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:13,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:13,974 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:13,974 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_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006d2db5d9e8a2a73a70ddf8f267501f17e7fb93705a7d85140217cd054b3553 [2023-11-06 22:22:14,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:14,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:14,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:14,304 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:14,305 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:14,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-06 22:22:17,333 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:17,869 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:17,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-06 22:22:17,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data/74310b0ba/765a5ba26e2342f988e677d9620fc328/FLAG3202451ac [2023-11-06 22:22:17,963 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data/74310b0ba/765a5ba26e2342f988e677d9620fc328 [2023-11-06 22:22:17,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:17,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:17,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:17,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:17,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:17,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:17" (1/1) ... [2023-11-06 22:22:17,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584a208f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:17, skipping insertion in model container [2023-11-06 22:22:17,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:17" (1/1) ... [2023-11-06 22:22:18,079 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:19,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:19,657 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 22:22:19,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4f0dc989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:19, skipping insertion in model container [2023-11-06 22:22:19,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:19,658 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:22:19,660 INFO L158 Benchmark]: Toolchain (without parser) took 1692.28ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 84.1MB in the beginning and 120.7MB in the end (delta: -36.6MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2023-11-06 22:22:19,660 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 123.7MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:22:19,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1689.93ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 84.1MB in the beginning and 120.7MB in the end (delta: -36.6MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2023-11-06 22:22:19,666 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95ms. Allocated memory is still 123.7MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1689.93ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 84.1MB in the beginning and 120.7MB in the end (delta: -36.6MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2228]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uname-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 64bit --witnessprinter.graph.data.programhash 006d2db5d9e8a2a73a70ddf8f267501f17e7fb93705a7d85140217cd054b3553 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:22,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:22,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-06 22:22:22,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:22,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:22,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:22,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:22,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:22,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:22,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:22,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:22,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:22,511 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:22,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:22,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:22,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:22,518 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:22:22,518 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:22:22,518 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:22:22,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:22,520 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:22:22,521 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:22:22,521 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:22:22,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:22:22,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:22,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:22,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:22,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:22,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:22,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:22,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:22,526 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:22:22,526 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:22:22,526 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:22,526 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:22,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:22,527 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:22:22,527 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:22,527 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_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006d2db5d9e8a2a73a70ddf8f267501f17e7fb93705a7d85140217cd054b3553 [2023-11-06 22:22:22,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:23,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:23,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:23,019 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:23,020 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:23,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-06 22:22:26,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:26,631 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:26,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/sv-benchmarks/c/busybox-1.22.0/uname-2.i [2023-11-06 22:22:26,681 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data/375031bf0/a73cf9b1d5e44db8b93781539a1183c7/FLAG791097e73 [2023-11-06 22:22:26,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/data/375031bf0/a73cf9b1d5e44db8b93781539a1183c7 [2023-11-06 22:22:26,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:26,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:26,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:26,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:26,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:26,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:26" (1/1) ... [2023-11-06 22:22:26,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce4806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:26, skipping insertion in model container [2023-11-06 22:22:26,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:26" (1/1) ... [2023-11-06 22:22:26,868 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:28,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:28,227 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:22:28,246 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:28,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:28,453 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:28,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:28,913 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:28,913 WARN L672 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:28,913 WARN L672 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:28,914 WARN L672 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:28,914 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:22:28,921 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:28,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28 WrapperNode [2023-11-06 22:22:28,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:28,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:28,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:28,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:28,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,149 INFO L138 Inliner]: procedures = 585, calls = 552, calls flagged for inlining = 24, calls inlined = 22, statements flattened = 1594 [2023-11-06 22:22:29,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:29,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:29,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:29,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:29,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:29,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:29,335 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:29,335 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:29,336 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (1/1) ... [2023-11-06 22:22:29,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:29,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:22:29,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:22:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-06 22:22:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:22:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-06 22:22:29,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:22:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 22:22:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 22:22:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 22:22:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:22:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 22:22:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:22:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:22:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-06 22:22:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-06 22:22:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-06 22:22:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-06 22:22:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:22:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:22:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:22:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 22:22:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 22:22:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-06 22:22:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-06 22:22:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:22:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:22:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-06 22:22:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:22:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:22:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:22:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:22:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:22:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:22:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:22:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 22:22:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 22:22:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:22:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:22:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-06 22:22:29,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-06 22:22:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 22:22:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-06 22:22:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 22:22:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-06 22:22:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-06 22:22:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-06 22:22:29,462 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-06 22:22:30,070 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:22:30,072 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:22:30,292 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 22:22:41,012 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:22:41,027 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:22:41,027 INFO L302 CfgBuilder]: Removed 32 assume(true) statements. [2023-11-06 22:22:41,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:41 BoogieIcfgContainer [2023-11-06 22:22:41,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:22:41,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:22:41,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:22:41,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:22:41,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:26" (1/3) ... [2023-11-06 22:22:41,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d99b904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:41, skipping insertion in model container [2023-11-06 22:22:41,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:28" (2/3) ... [2023-11-06 22:22:41,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d99b904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:22:41, skipping insertion in model container [2023-11-06 22:22:41,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:22:41" (3/3) ... [2023-11-06 22:22:41,040 INFO L112 eAbstractionObserver]: Analyzing ICFG uname-2.i [2023-11-06 22:22:41,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:22:41,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 430 error locations. [2023-11-06 22:22:41,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:22:41,133 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;@5f363e09, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:22:41,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2023-11-06 22:22:41,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 1052 states, 594 states have (on average 2.0134680134680134) internal successors, (1196), 1023 states have internal predecessors, (1196), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:22:41,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:22:41,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:41,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:22:41,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:22:41,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash 382372, now seen corresponding path program 1 times [2023-11-06 22:22:41,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:22:41,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649723924] [2023-11-06 22:22:41,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:41,175 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 22:22:41,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:22:41,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:41,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:41,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:22:41,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:41,738 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 22:22:41,765 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 22:22:41,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:22:41,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:22:41,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649723924] [2023-11-06 22:22:41,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649723924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:41,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:41,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:22:41,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091847138] [2023-11-06 22:22:41,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:41,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:22:41,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:22:41,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:22:41,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:22:41,824 INFO L87 Difference]: Start difference. First operand has 1052 states, 594 states have (on average 2.0134680134680134) internal successors, (1196), 1023 states have internal predecessors, (1196), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:45,564 INFO L93 Difference]: Finished difference Result 1212 states and 1390 transitions. [2023-11-06 22:22:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:22:45,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 22:22:45,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:45,596 INFO L225 Difference]: With dead ends: 1212 [2023-11-06 22:22:45,596 INFO L226 Difference]: Without dead ends: 1210 [2023-11-06 22:22:45,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:22:45,601 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 407 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:45,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1634 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-06 22:22:45,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2023-11-06 22:22:45,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1040. [2023-11-06 22:22:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 588 states have (on average 1.9472789115646258) internal successors, (1145), 1015 states have internal predecessors, (1145), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:22:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1187 transitions. [2023-11-06 22:22:45,706 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1187 transitions. Word has length 3 [2023-11-06 22:22:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:45,707 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1187 transitions. [2023-11-06 22:22:45,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1187 transitions. [2023-11-06 22:22:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:22:45,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:45,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:22:45,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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)] Ended with exit code 0 [2023-11-06 22:22:45,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:45,927 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:22:45,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:45,927 INFO L85 PathProgramCache]: Analyzing trace with hash 382373, now seen corresponding path program 1 times [2023-11-06 22:22:45,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:22:45,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838521404] [2023-11-06 22:22:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:45,929 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 22:22:45,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:22:45,961 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:46,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:46,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:22:46,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:46,417 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 22:22:46,443 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 22:22:46,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:22:46,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:22:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838521404] [2023-11-06 22:22:46,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838521404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:46,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:46,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:22:46,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107658790] [2023-11-06 22:22:46,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:46,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:22:46,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:22:46,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:22:46,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:22:46,447 INFO L87 Difference]: Start difference. First operand 1040 states and 1187 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:51,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:51,697 INFO L93 Difference]: Finished difference Result 1039 states and 1186 transitions. [2023-11-06 22:22:51,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:22:51,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 22:22:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:51,705 INFO L225 Difference]: With dead ends: 1039 [2023-11-06 22:22:51,705 INFO L226 Difference]: Without dead ends: 1039 [2023-11-06 22:22:51,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:22:51,707 INFO L413 NwaCegarLoop]: 1179 mSDtfsCounter, 13 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:51,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1928 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-06 22:22:51,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2023-11-06 22:22:51,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2023-11-06 22:22:51,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 588 states have (on average 1.945578231292517) internal successors, (1144), 1014 states have internal predecessors, (1144), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:22:51,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1186 transitions. [2023-11-06 22:22:51,742 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1186 transitions. Word has length 3 [2023-11-06 22:22:51,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:51,742 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1186 transitions. [2023-11-06 22:22:51,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1186 transitions. [2023-11-06 22:22:51,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:22:51,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:51,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:22:51,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:22:51,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:51,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:22:51,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:51,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1493328695, now seen corresponding path program 1 times [2023-11-06 22:22:51,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:22:51,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191933166] [2023-11-06 22:22:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:51,964 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 22:22:51,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:22:51,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:51,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:22:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:52,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:22:52,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:52,484 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 22:22:52,604 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 22:22:52,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:22:52,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:22:52,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191933166] [2023-11-06 22:22:52,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191933166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:52,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:52,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:22:52,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379630509] [2023-11-06 22:22:52,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:52,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:22:52,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:22:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:22:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:52,607 INFO L87 Difference]: Start difference. First operand 1039 states and 1186 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:59,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:59,875 INFO L93 Difference]: Finished difference Result 1043 states and 1190 transitions. [2023-11-06 22:22:59,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:22:59,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 22:22:59,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:59,882 INFO L225 Difference]: With dead ends: 1043 [2023-11-06 22:22:59,883 INFO L226 Difference]: Without dead ends: 1043 [2023-11-06 22:22:59,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:22:59,884 INFO L413 NwaCegarLoop]: 1177 mSDtfsCounter, 14 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:59,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2678 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-06 22:22:59,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-11-06 22:22:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1041. [2023-11-06 22:22:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 590 states have (on average 1.9423728813559322) internal successors, (1146), 1016 states have internal predecessors, (1146), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:22:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1188 transitions. [2023-11-06 22:22:59,917 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1188 transitions. Word has length 6 [2023-11-06 22:22:59,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:59,917 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1188 transitions. [2023-11-06 22:22:59,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:22:59,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1188 transitions. [2023-11-06 22:22:59,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:22:59,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:59,919 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:59,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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)] Ended with exit code 0 [2023-11-06 22:23:00,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:00,129 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:23:00,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2106385012, now seen corresponding path program 1 times [2023-11-06 22:23:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:00,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136576745] [2023-11-06 22:23:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:00,131 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 22:23:00,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:00,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:00,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:00,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:23:00,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:00,662 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 22:23:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:00,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:01,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:01,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136576745] [2023-11-06 22:23:01,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136576745] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:23:01,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:23:01,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-06 22:23:01,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837707858] [2023-11-06 22:23:01,815 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:01,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:23:01,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:01,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:23:01,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:23:01,817 INFO L87 Difference]: Start difference. First operand 1041 states and 1188 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:28,770 INFO L93 Difference]: Finished difference Result 1047 states and 1194 transitions. [2023-11-06 22:23:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:23:28,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-06 22:23:28,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:28,778 INFO L225 Difference]: With dead ends: 1047 [2023-11-06 22:23:28,779 INFO L226 Difference]: Without dead ends: 1047 [2023-11-06 22:23:28,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:23:28,784 INFO L413 NwaCegarLoop]: 1177 mSDtfsCounter, 21 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4930 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:28,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4930 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 26.7s Time] [2023-11-06 22:23:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-11-06 22:23:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1047. [2023-11-06 22:23:28,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 597 states have (on average 1.92964824120603) internal successors, (1152), 1022 states have internal predecessors, (1152), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:23:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1194 transitions. [2023-11-06 22:23:28,821 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1194 transitions. Word has length 10 [2023-11-06 22:23:28,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:28,821 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1194 transitions. [2023-11-06 22:23:28,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1194 transitions. [2023-11-06 22:23:28,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:23:28,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:28,831 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:28,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:29,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:29,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:23:29,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:29,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1890076030, now seen corresponding path program 1 times [2023-11-06 22:23:29,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:29,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371173652] [2023-11-06 22:23:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:29,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:29,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:29,055 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:29,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:29,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:23:29,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:29,617 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:29,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:29,804 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:29,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:29,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371173652] [2023-11-06 22:23:29,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371173652] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:23:29,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:23:29,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-06 22:23:29,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730905913] [2023-11-06 22:23:29,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:29,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:23:29,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:29,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:23:29,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:23:29,807 INFO L87 Difference]: Start difference. First operand 1047 states and 1194 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:30,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:30,349 INFO L93 Difference]: Finished difference Result 1067 states and 1214 transitions. [2023-11-06 22:23:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:23:30,350 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:23:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:30,356 INFO L225 Difference]: With dead ends: 1067 [2023-11-06 22:23:30,356 INFO L226 Difference]: Without dead ends: 1067 [2023-11-06 22:23:30,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:23:30,357 INFO L413 NwaCegarLoop]: 1185 mSDtfsCounter, 15 mSDsluCounter, 4723 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5908 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:30,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5908 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:23:30,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2023-11-06 22:23:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1067. [2023-11-06 22:23:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 617 states have (on average 1.899513776337115) internal successors, (1172), 1042 states have internal predecessors, (1172), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:23:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1214 transitions. [2023-11-06 22:23:30,387 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1214 transitions. Word has length 19 [2023-11-06 22:23:30,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:30,387 INFO L495 AbstractCegarLoop]: Abstraction has 1067 states and 1214 transitions. [2023-11-06 22:23:30,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:30,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1214 transitions. [2023-11-06 22:23:30,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:23:30,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:30,389 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:30,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:30,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:30,606 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:23:30,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:30,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1153810925, now seen corresponding path program 2 times [2023-11-06 22:23:30,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:30,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454244678] [2023-11-06 22:23:30,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:23:30,608 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 22:23:30,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:30,610 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:30,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:31,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:23:31,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:23:31,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:23:31,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:31,965 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:23:31,966 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-06 22:23:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-06 22:23:32,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:32,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:32,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454244678] [2023-11-06 22:23:32,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454244678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:32,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:32,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:23:32,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161836041] [2023-11-06 22:23:32,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:32,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:32,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:32,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:32,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:32,471 INFO L87 Difference]: Start difference. First operand 1067 states and 1214 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:36,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:36,690 INFO L93 Difference]: Finished difference Result 1432 states and 1635 transitions. [2023-11-06 22:23:36,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:36,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-06 22:23:36,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:36,701 INFO L225 Difference]: With dead ends: 1432 [2023-11-06 22:23:36,701 INFO L226 Difference]: Without dead ends: 1432 [2023-11-06 22:23:36,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 1 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 22:23:36,702 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 616 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:36,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1632 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-06 22:23:36,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2023-11-06 22:23:36,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1268. [2023-11-06 22:23:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 809 states have (on average 1.9208899876390606) internal successors, (1554), 1233 states have internal predecessors, (1554), 30 states have call successors, (30), 12 states have call predecessors, (30), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 22:23:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1609 transitions. [2023-11-06 22:23:36,742 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1609 transitions. Word has length 39 [2023-11-06 22:23:36,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:36,743 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1609 transitions. [2023-11-06 22:23:36,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1609 transitions. [2023-11-06 22:23:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:23:36,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:36,745 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:36,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:36,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:36,962 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:23:36,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:36,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1153810924, now seen corresponding path program 1 times [2023-11-06 22:23:36,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:36,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097823089] [2023-11-06 22:23:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:36,963 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 22:23:36,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:36,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:37,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:37,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:23:37,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:37,905 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:37,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:38,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:38,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097823089] [2023-11-06 22:23:38,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097823089] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:23:38,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:23:38,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-06 22:23:38,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668635290] [2023-11-06 22:23:38,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:38,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 22:23:38,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:38,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 22:23:38,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:23:38,635 INFO L87 Difference]: Start difference. First operand 1268 states and 1609 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:39,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:39,896 INFO L93 Difference]: Finished difference Result 1276 states and 1617 transitions. [2023-11-06 22:23:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:23:39,898 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-06 22:23:39,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:39,906 INFO L225 Difference]: With dead ends: 1276 [2023-11-06 22:23:39,906 INFO L226 Difference]: Without dead ends: 1276 [2023-11-06 22:23:39,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:23:39,907 INFO L413 NwaCegarLoop]: 1189 mSDtfsCounter, 9 mSDsluCounter, 14194 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15383 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:39,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15383 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:23:39,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2023-11-06 22:23:39,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1276. [2023-11-06 22:23:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 817 states have (on average 1.91187270501836) internal successors, (1562), 1241 states have internal predecessors, (1562), 30 states have call successors, (30), 12 states have call predecessors, (30), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 22:23:39,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1617 transitions. [2023-11-06 22:23:39,941 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1617 transitions. Word has length 39 [2023-11-06 22:23:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:39,941 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1617 transitions. [2023-11-06 22:23:39,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:39,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1617 transitions. [2023-11-06 22:23:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 22:23:39,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:39,943 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:39,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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)] Ended with exit code 0 [2023-11-06 22:23:40,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:40,157 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:23:40,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1569648334, now seen corresponding path program 2 times [2023-11-06 22:23:40,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:40,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166561196] [2023-11-06 22:23:40,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:23:40,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:40,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:40,160 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:40,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:41,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:23:41,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:23:41,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:23:41,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:41,452 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 22:23:42,393 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:23:42,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:42,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:42,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166561196] [2023-11-06 22:23:42,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166561196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:42,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:42,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:42,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472427416] [2023-11-06 22:23:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:42,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:42,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:42,395 INFO L87 Difference]: Start difference. First operand 1276 states and 1617 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:52,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:52,867 INFO L93 Difference]: Finished difference Result 1797 states and 2052 transitions. [2023-11-06 22:23:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:52,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-11-06 22:23:52,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:52,880 INFO L225 Difference]: With dead ends: 1797 [2023-11-06 22:23:52,880 INFO L226 Difference]: Without dead ends: 1797 [2023-11-06 22:23:52,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:52,881 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 1234 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:52,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 1729 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-11-06 22:23:52,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2023-11-06 22:23:52,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1458. [2023-11-06 22:23:52,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 990 states have (on average 1.9111111111111112) internal successors, (1892), 1417 states have internal predecessors, (1892), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 29 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:23:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1960 transitions. [2023-11-06 22:23:52,923 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1960 transitions. Word has length 47 [2023-11-06 22:23:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:52,923 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 1960 transitions. [2023-11-06 22:23:52,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1960 transitions. [2023-11-06 22:23:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:23:52,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:52,925 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:52,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:53,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:53,143 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:23:53,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:53,144 INFO L85 PathProgramCache]: Analyzing trace with hash -710522915, now seen corresponding path program 1 times [2023-11-06 22:23:53,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:53,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713296753] [2023-11-06 22:23:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:53,145 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 22:23:53,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:53,146 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:53,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:23:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:54,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:23:54,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:54,959 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:23:54,960 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 1 case distinctions, treesize of input 9 treesize of output 15 [2023-11-06 22:23:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:23:54,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:54,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:54,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713296753] [2023-11-06 22:23:54,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713296753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:54,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:54,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:54,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968742838] [2023-11-06 22:23:54,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:54,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:54,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:54,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:54,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:54,998 INFO L87 Difference]: Start difference. First operand 1458 states and 1960 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:24:02,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:02,503 INFO L93 Difference]: Finished difference Result 1531 states and 1961 transitions. [2023-11-06 22:24:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:02,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2023-11-06 22:24:02,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:02,512 INFO L225 Difference]: With dead ends: 1531 [2023-11-06 22:24:02,512 INFO L226 Difference]: Without dead ends: 1531 [2023-11-06 22:24:02,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:02,513 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 388 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:02,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1639 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-11-06 22:24:02,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2023-11-06 22:24:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1453. [2023-11-06 22:24:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 990 states have (on average 1.906060606060606) internal successors, (1887), 1412 states have internal predecessors, (1887), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 29 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:24:02,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1955 transitions. [2023-11-06 22:24:02,553 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1955 transitions. Word has length 55 [2023-11-06 22:24:02,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:02,554 INFO L495 AbstractCegarLoop]: Abstraction has 1453 states and 1955 transitions. [2023-11-06 22:24:02,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:24:02,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1955 transitions. [2023-11-06 22:24:02,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:24:02,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:02,555 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:02,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:02,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:02,779 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:24:02,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash -710522914, now seen corresponding path program 1 times [2023-11-06 22:24:02,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885165207] [2023-11-06 22:24:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:02,780 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 22:24:02,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:02,781 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:02,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:04,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:24:04,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:04,839 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-06 22:24:04,839 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 1 case distinctions, treesize of input 19 treesize of output 21 [2023-11-06 22:24:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:24:05,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:05,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:05,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885165207] [2023-11-06 22:24:05,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885165207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:05,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:05,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:24:05,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318469911] [2023-11-06 22:24:05,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:05,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:24:05,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:05,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:24:05,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:24:05,010 INFO L87 Difference]: Start difference. First operand 1453 states and 1955 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:24:16,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:16,706 INFO L93 Difference]: Finished difference Result 1454 states and 1957 transitions. [2023-11-06 22:24:16,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:24:16,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2023-11-06 22:24:16,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:16,715 INFO L225 Difference]: With dead ends: 1454 [2023-11-06 22:24:16,715 INFO L226 Difference]: Without dead ends: 1454 [2023-11-06 22:24:16,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:24:16,716 INFO L413 NwaCegarLoop]: 1165 mSDtfsCounter, 905 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 4473 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:16,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 4473 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-11-06 22:24:16,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2023-11-06 22:24:16,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1452. [2023-11-06 22:24:16,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 990 states have (on average 1.905050505050505) internal successors, (1886), 1411 states have internal predecessors, (1886), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 29 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:24:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1954 transitions. [2023-11-06 22:24:16,754 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1954 transitions. Word has length 55 [2023-11-06 22:24:16,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:16,754 INFO L495 AbstractCegarLoop]: Abstraction has 1452 states and 1954 transitions. [2023-11-06 22:24:16,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:24:16,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1954 transitions. [2023-11-06 22:24:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:24:16,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:16,756 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:16,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:16,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:16,973 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:24:16,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1588969332, now seen corresponding path program 1 times [2023-11-06 22:24:16,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:16,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183770889] [2023-11-06 22:24:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:16,974 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 22:24:16,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:16,975 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:16,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:18,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:24:18,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:18,354 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-06 22:24:18,355 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 1 case distinctions, treesize of input 19 treesize of output 21 [2023-11-06 22:24:19,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:19,084 INFO L322 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-06 22:24:19,084 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 31 [2023-11-06 22:24:19,136 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:24:19,137 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 22:24:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:24:19,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:19,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:19,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183770889] [2023-11-06 22:24:19,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183770889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:19,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:19,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:24:19,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134249739] [2023-11-06 22:24:19,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:19,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:24:19,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:19,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:24:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:24:19,385 INFO L87 Difference]: Start difference. First operand 1452 states and 1954 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 22:24:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:51,612 INFO L93 Difference]: Finished difference Result 1723 states and 2060 transitions. [2023-11-06 22:24:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:24:51,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 58 [2023-11-06 22:24:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:51,620 INFO L225 Difference]: With dead ends: 1723 [2023-11-06 22:24:51,620 INFO L226 Difference]: Without dead ends: 1723 [2023-11-06 22:24:51,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:24:51,621 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 2866 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2876 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:51,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2876 Valid, 4087 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 31.8s Time] [2023-11-06 22:24:51,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-11-06 22:24:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1491. [2023-11-06 22:24:51,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1029 states have (on average 1.8931000971817298) internal successors, (1948), 1449 states have internal predecessors, (1948), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 30 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:24:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2016 transitions. [2023-11-06 22:24:51,660 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2016 transitions. Word has length 58 [2023-11-06 22:24:51,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:51,660 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 2016 transitions. [2023-11-06 22:24:51,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 22:24:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2016 transitions. [2023-11-06 22:24:51,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 22:24:51,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:51,662 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:51,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:51,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:51,877 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:24:51,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:51,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2144505547, now seen corresponding path program 1 times [2023-11-06 22:24:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:51,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330219604] [2023-11-06 22:24:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:51,879 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 22:24:51,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:51,880 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:51,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:53,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:24:53,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:53,043 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 11 treesize of output 7 [2023-11-06 22:24:53,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:53,060 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 1 [2023-11-06 22:24:53,126 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:24:53,127 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-06 22:24:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:24:53,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:53,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:53,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330219604] [2023-11-06 22:24:53,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330219604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:53,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:53,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:24:53,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325738429] [2023-11-06 22:24:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:53,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:53,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:53,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:53,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:53,184 INFO L87 Difference]: Start difference. First operand 1491 states and 2016 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 22:24:56,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:56,661 INFO L93 Difference]: Finished difference Result 1568 states and 2020 transitions. [2023-11-06 22:24:56,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:56,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 61 [2023-11-06 22:24:56,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:56,671 INFO L225 Difference]: With dead ends: 1568 [2023-11-06 22:24:56,671 INFO L226 Difference]: Without dead ends: 1568 [2023-11-06 22:24:56,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 1 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 22:24:56,672 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 386 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:56,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1635 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-06 22:24:56,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2023-11-06 22:24:56,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1490. [2023-11-06 22:24:56,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1029 states have (on average 1.8911564625850341) internal successors, (1946), 1448 states have internal predecessors, (1946), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 30 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:24:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2014 transitions. [2023-11-06 22:24:56,708 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2014 transitions. Word has length 61 [2023-11-06 22:24:56,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:56,708 INFO L495 AbstractCegarLoop]: Abstraction has 1490 states and 2014 transitions. [2023-11-06 22:24:56,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 22:24:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2014 transitions. [2023-11-06 22:24:56,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 22:24:56,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:56,710 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:56,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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)] Ended with exit code 0 [2023-11-06 22:24:56,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:56,933 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:24:56,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:56,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2144505548, now seen corresponding path program 1 times [2023-11-06 22:24:56,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:56,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561385171] [2023-11-06 22:24:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:56,935 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 22:24:56,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:56,937 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:56,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:24:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:58,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:24:58,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:58,312 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 11 treesize of output 10 [2023-11-06 22:24:58,345 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 22:24:58,365 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 16 treesize of output 10 [2023-11-06 22:24:58,401 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 11 treesize of output 7 [2023-11-06 22:24:58,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:58,776 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 19 treesize of output 14 [2023-11-06 22:24:58,811 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:24:58,811 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 22:24:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:24:59,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:59,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561385171] [2023-11-06 22:24:59,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561385171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:59,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:59,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:24:59,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293392712] [2023-11-06 22:24:59,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:59,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:24:59,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:59,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:24:59,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:24:59,107 INFO L87 Difference]: Start difference. First operand 1490 states and 2014 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 22:25:28,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:28,751 INFO L93 Difference]: Finished difference Result 1574 states and 2021 transitions. [2023-11-06 22:25:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:25:28,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 61 [2023-11-06 22:25:28,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:28,758 INFO L225 Difference]: With dead ends: 1574 [2023-11-06 22:25:28,758 INFO L226 Difference]: Without dead ends: 1574 [2023-11-06 22:25:28,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:25:28,759 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 1549 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 4310 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:28,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 4310 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 29.3s Time] [2023-11-06 22:25:28,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2023-11-06 22:25:28,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1490. [2023-11-06 22:25:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1029 states have (on average 1.8901846452866862) internal successors, (1945), 1448 states have internal predecessors, (1945), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 30 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:25:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2013 transitions. [2023-11-06 22:25:28,792 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2013 transitions. Word has length 61 [2023-11-06 22:25:28,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:28,793 INFO L495 AbstractCegarLoop]: Abstraction has 1490 states and 2013 transitions. [2023-11-06 22:25:28,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 22:25:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2013 transitions. [2023-11-06 22:25:28,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:25:28,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:28,794 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:25:28,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:29,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:29,018 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:25:29,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash -673401934, now seen corresponding path program 1 times [2023-11-06 22:25:29,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:25:29,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509952860] [2023-11-06 22:25:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:29,020 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 22:25:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:25:29,022 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:29,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:30,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:25:30,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:30,544 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 22:25:30,608 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 21 treesize of output 1 [2023-11-06 22:25:30,840 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-06 22:25:30,840 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 28 [2023-11-06 22:25:30,983 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:25:30,983 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 42 treesize of output 14 [2023-11-06 22:25:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:25:31,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:25:31,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:25:31,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509952860] [2023-11-06 22:25:31,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509952860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:31,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:25:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312547171] [2023-11-06 22:25:31,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:31,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:25:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:25:31,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:25:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:25:31,035 INFO L87 Difference]: Start difference. First operand 1490 states and 2013 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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 22:25:41,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:25:45,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:45,971 INFO L93 Difference]: Finished difference Result 1487 states and 2008 transitions. [2023-11-06 22:25:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:25:45,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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 64 [2023-11-06 22:25:45,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:45,978 INFO L225 Difference]: With dead ends: 1487 [2023-11-06 22:25:45,978 INFO L226 Difference]: Without dead ends: 1487 [2023-11-06 22:25:45,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:25:45,979 INFO L413 NwaCegarLoop]: 1155 mSDtfsCounter, 905 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 3398 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:45,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 3398 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1284 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2023-11-06 22:25:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2023-11-06 22:25:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1463. [2023-11-06 22:25:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1005 states have (on average 1.891542288557214) internal successors, (1901), 1422 states have internal predecessors, (1901), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 29 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:25:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1969 transitions. [2023-11-06 22:25:46,010 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1969 transitions. Word has length 64 [2023-11-06 22:25:46,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:46,010 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1969 transitions. [2023-11-06 22:25:46,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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 22:25:46,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1969 transitions. [2023-11-06 22:25:46,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:25:46,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:46,012 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:25:46,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:46,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:46,225 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:25:46,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:46,225 INFO L85 PathProgramCache]: Analyzing trace with hash -673401933, now seen corresponding path program 1 times [2023-11-06 22:25:46,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:25:46,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005550071] [2023-11-06 22:25:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:46,226 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 22:25:46,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:25:46,227 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:46,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:25:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:47,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-06 22:25:47,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:47,579 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:25:47,625 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 22:25:47,718 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 25 treesize of output 1 [2023-11-06 22:25:47,747 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 16 treesize of output 12 [2023-11-06 22:25:47,914 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 23 treesize of output 18 [2023-11-06 22:25:47,923 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 21 treesize of output 16 [2023-11-06 22:25:48,063 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 27 treesize of output 9 [2023-11-06 22:25:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:25:48,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:25:48,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:25:48,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005550071] [2023-11-06 22:25:48,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005550071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:48,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:48,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:25:48,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117825632] [2023-11-06 22:25:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:48,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:25:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:25:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:25:48,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:25:48,125 INFO L87 Difference]: Start difference. First operand 1463 states and 1969 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 22:25:59,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:26:04,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:26:04,136 INFO L93 Difference]: Finished difference Result 1462 states and 1967 transitions. [2023-11-06 22:26:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:26:04,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 64 [2023-11-06 22:26:04,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:26:04,147 INFO L225 Difference]: With dead ends: 1462 [2023-11-06 22:26:04,147 INFO L226 Difference]: Without dead ends: 1462 [2023-11-06 22:26:04,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:26:04,148 INFO L413 NwaCegarLoop]: 1148 mSDtfsCounter, 901 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:26:04,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 3433 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1240 Invalid, 1 Unknown, 0 Unchecked, 15.7s Time] [2023-11-06 22:26:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-11-06 22:26:04,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1462. [2023-11-06 22:26:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1005 states have (on average 1.8895522388059702) internal successors, (1899), 1421 states have internal predecessors, (1899), 36 states have call successors, (36), 15 states have call predecessors, (36), 13 states have return successors, (32), 29 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-06 22:26:04,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1967 transitions. [2023-11-06 22:26:04,199 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1967 transitions. Word has length 64 [2023-11-06 22:26:04,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:26:04,199 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 1967 transitions. [2023-11-06 22:26:04,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 22:26:04,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1967 transitions. [2023-11-06 22:26:04,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:26:04,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:26:04,200 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:26:04,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:26:04,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:26:04,421 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 22:26:04,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:04,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1791214353, now seen corresponding path program 1 times [2023-11-06 22:26:04,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:26:04,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619844027] [2023-11-06 22:26:04,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:04,423 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 22:26:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:26:04,424 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:26:04,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d1583b-5c83-43c6-a2cf-7cfabaa5e454/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 22:26:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:05,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:26:05,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:26:05,818 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:26:05,972 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:26:05,972 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 22:26:06,104 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-06 22:26:06,315 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 38 treesize of output 31 [2023-11-06 22:26:06,627 INFO L322 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-06 22:26:06,628 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 56 treesize of output 55 [2023-11-06 22:26:06,723 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 42 treesize of output 15 [2023-11-06 22:26:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:26:06,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:26:06,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:26:06,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619844027] [2023-11-06 22:26:06,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619844027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:26:06,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:26:06,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:26:06,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158300841] [2023-11-06 22:26:06,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:26:06,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:26:06,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:26:06,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:26:06,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:26:06,896 INFO L87 Difference]: Start difference. First operand 1462 states and 1967 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 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 22:26:21,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:26:23,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []