./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:03:26,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:03:26,731 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 23:03:26,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:03:26,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:03:26,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:03:26,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:03:26,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:03:26,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:03:26,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:03:26,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:03:26,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:03:26,793 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:03:26,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:03:26,795 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:03:26,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:03:26,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:03:26,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:03:26,797 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 23:03:26,798 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 23:03:26,798 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 23:03:26,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:03:26,799 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:03:26,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:03:26,800 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:03:26,801 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:03:26,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:03:26,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:03:26,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:03:26,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:03:26,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:03:26,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:03:26,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:03:26,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:03:26,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:03:26,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:03:26,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:03:26,806 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:03:26,807 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_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2023-11-06 23:03:27,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:03:27,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:03:27,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:03:27,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:03:27,104 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:03:27,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-06 23:03:30,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:03:30,623 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:03:30,624 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-06 23:03:30,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data/bc3be3103/c1f4e0855e63481a86bdcafd1a114ada/FLAG76a6b6648 [2023-11-06 23:03:30,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data/bc3be3103/c1f4e0855e63481a86bdcafd1a114ada [2023-11-06 23:03:30,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:03:30,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:03:30,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:03:30,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:03:30,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:03:30,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:03:30" (1/1) ... [2023-11-06 23:03:30,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d296a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:30, skipping insertion in model container [2023-11-06 23:03:30,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:03:30" (1/1) ... [2023-11-06 23:03:30,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:03:31,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:03:31,460 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 23:03:31,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43210c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:31, skipping insertion in model container [2023-11-06 23:03:31,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:03:31,465 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 23:03:31,467 INFO L158 Benchmark]: Toolchain (without parser) took 803.95ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 80.7MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 23:03:31,468 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 88.1MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:03:31,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.25ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 80.7MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 23:03:31,472 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 88.1MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.25ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 80.7MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:03:34,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:03:34,359 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 23:03:34,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:03:34,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:03:34,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:03:34,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:03:34,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:03:34,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:03:34,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:03:34,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:03:34,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:03:34,438 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:03:34,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:03:34,441 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:03:34,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:03:34,442 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:03:34,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:03:34,443 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 23:03:34,444 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 23:03:34,445 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 23:03:34,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:03:34,446 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:03:34,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:03:34,447 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:03:34,448 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:03:34,448 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:03:34,449 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:03:34,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:03:34,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:03:34,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:03:34,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:03:34,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:03:34,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:03:34,454 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:03:34,454 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:03:34,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:03:34,455 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:03:34,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:03:34,456 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:03:34,456 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:03:34,457 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_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2023-11-06 23:03:34,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:03:34,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:03:34,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:03:34,995 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:03:34,996 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:03:34,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-06 23:03:38,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:03:38,645 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:03:38,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2023-11-06 23:03:38,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data/2554c17d9/244b78708f754b7a84299321ffb77c19/FLAG86fb64c4a [2023-11-06 23:03:38,688 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/data/2554c17d9/244b78708f754b7a84299321ffb77c19 [2023-11-06 23:03:38,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:03:38,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:03:38,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:03:38,695 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:03:38,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:03:38,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:03:38" (1/1) ... [2023-11-06 23:03:38,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a031e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:38, skipping insertion in model container [2023-11-06 23:03:38,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:03:38" (1/1) ... [2023-11-06 23:03:38,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:03:39,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:03:39,510 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 23:03:39,536 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:03:39,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:03:39,740 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:03:39,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:03:39,911 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:03:39,921 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:03:39,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39 WrapperNode [2023-11-06 23:03:39,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:03:39,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:03:39,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:03:39,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:03:39,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,136 INFO L138 Inliner]: procedures = 180, calls = 350, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1184 [2023-11-06 23:03:40,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:03:40,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:03:40,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:03:40,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:03:40,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:03:40,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:03:40,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:03:40,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:03:40,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (1/1) ... [2023-11-06 23:03:40,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:03:40,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:03:40,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:03:40,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:03:40,442 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 23:03:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 23:03:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 23:03:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 23:03:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 23:03:40,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 23:03:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 23:03:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 23:03:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-06 23:03:40,444 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-06 23:03:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:03:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:03:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:03:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:03:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 23:03:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:03:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:03:40,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 23:03:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:03:40,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:03:40,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:03:40,701 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:03:40,703 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:03:40,739 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 23:03:47,288 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:03:47,304 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:03:47,304 INFO L302 CfgBuilder]: Removed 71 assume(true) statements. [2023-11-06 23:03:47,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:03:47 BoogieIcfgContainer [2023-11-06 23:03:47,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:03:47,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:03:47,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:03:47,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:03:47,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:03:38" (1/3) ... [2023-11-06 23:03:47,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316b917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:03:47, skipping insertion in model container [2023-11-06 23:03:47,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:39" (2/3) ... [2023-11-06 23:03:47,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316b917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:03:47, skipping insertion in model container [2023-11-06 23:03:47,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:03:47" (3/3) ... [2023-11-06 23:03:47,318 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i [2023-11-06 23:03:47,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:03:47,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 640 error locations. [2023-11-06 23:03:47,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:03:47,418 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;@49fe240f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:03:47,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 640 error locations. [2023-11-06 23:03:47,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 1309 states, 645 states have (on average 2.2310077519379843) internal successors, (1439), 1299 states have internal predecessors, (1439), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 23:03:47,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 23:03:47,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:03:47,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 23:03:47,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:03:47,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:47,442 INFO L85 PathProgramCache]: Analyzing trace with hash 141073, now seen corresponding path program 1 times [2023-11-06 23:03:47,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:03:47,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863897871] [2023-11-06 23:03:47,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:47,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:03:47,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:03:47,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:03:47,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 23:03:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:47,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:03:47,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:03:47,779 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:03:47,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:47,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:03:47,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:03:47,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863897871] [2023-11-06 23:03:47,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863897871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:47,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:47,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:03:47,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78341218] [2023-11-06 23:03:47,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:47,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:47,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:03:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:47,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:03:47,855 INFO L87 Difference]: Start difference. First operand has 1309 states, 645 states have (on average 2.2310077519379843) internal successors, (1439), 1299 states have internal predecessors, (1439), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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 23:03:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:03:50,926 INFO L93 Difference]: Finished difference Result 1493 states and 1599 transitions. [2023-11-06 23:03:50,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:03:50,933 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 23:03:50,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:03:50,956 INFO L225 Difference]: With dead ends: 1493 [2023-11-06 23:03:50,957 INFO L226 Difference]: Without dead ends: 1491 [2023-11-06 23:03:50,958 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 23:03:50,962 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 1170 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:03:50,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 1068 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-06 23:03:50,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2023-11-06 23:03:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1299. [2023-11-06 23:03:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 650 states have (on average 2.0876923076923077) internal successors, (1357), 1288 states have internal predecessors, (1357), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 23:03:51,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1401 transitions. [2023-11-06 23:03:51,082 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1401 transitions. Word has length 3 [2023-11-06 23:03:51,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:03:51,083 INFO L495 AbstractCegarLoop]: Abstraction has 1299 states and 1401 transitions. [2023-11-06 23:03:51,083 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 23:03:51,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1401 transitions. [2023-11-06 23:03:51,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 23:03:51,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:03:51,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 23:03:51,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 23:03:51,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:03:51,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:03:51,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:51,293 INFO L85 PathProgramCache]: Analyzing trace with hash 141074, now seen corresponding path program 1 times [2023-11-06 23:03:51,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:03:51,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131853267] [2023-11-06 23:03:51,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:51,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:03:51,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:03:51,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:03:51,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 23:03:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:51,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:03:51,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:03:51,503 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:03:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:51,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:03:51,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:03:51,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131853267] [2023-11-06 23:03:51,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131853267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:51,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:51,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:03:51,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129527023] [2023-11-06 23:03:51,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:51,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:03:51,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:03:51,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:03:51,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:03:51,521 INFO L87 Difference]: Start difference. First operand 1299 states and 1401 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 23:03:56,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:03:56,349 INFO L93 Difference]: Finished difference Result 1897 states and 2041 transitions. [2023-11-06 23:03:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:03:56,350 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 23:03:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:03:56,363 INFO L225 Difference]: With dead ends: 1897 [2023-11-06 23:03:56,363 INFO L226 Difference]: Without dead ends: 1897 [2023-11-06 23:03:56,364 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 23:03:56,366 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 637 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:03:56,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1860 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-06 23:03:56,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2023-11-06 23:03:56,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1508. [2023-11-06 23:03:56,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 859 states have (on average 2.0733410942956927) internal successors, (1781), 1496 states have internal predecessors, (1781), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 23:03:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1827 transitions. [2023-11-06 23:03:56,425 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1827 transitions. Word has length 3 [2023-11-06 23:03:56,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:03:56,425 INFO L495 AbstractCegarLoop]: Abstraction has 1508 states and 1827 transitions. [2023-11-06 23:03:56,426 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 23:03:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1827 transitions. [2023-11-06 23:03:56,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 23:03:56,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:03:56,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:56,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-06 23:03:56,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:03:56,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:03:56,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:56,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1437667611, now seen corresponding path program 1 times [2023-11-06 23:03:56,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:03:56,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469372861] [2023-11-06 23:03:56,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:56,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:03:56,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:03:56,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:03:56,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 23:03:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:56,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 23:03:56,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:03:56,869 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:03:56,878 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:03:57,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:03:57,017 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 23:03:57,045 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:03:57,046 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 23:03:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:57,080 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:03:57,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:03:57,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469372861] [2023-11-06 23:03:57,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469372861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:57,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:57,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:03:57,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622948809] [2023-11-06 23:03:57,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:57,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:03:57,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:03:57,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:03:57,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:03:57,085 INFO L87 Difference]: Start difference. First operand 1508 states and 1827 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:01,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:01,457 INFO L93 Difference]: Finished difference Result 1694 states and 2020 transitions. [2023-11-06 23:04:01,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:01,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 23:04:01,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:01,468 INFO L225 Difference]: With dead ends: 1694 [2023-11-06 23:04:01,468 INFO L226 Difference]: Without dead ends: 1694 [2023-11-06 23:04:01,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:01,470 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1481 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:01,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 739 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-06 23:04:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-11-06 23:04:01,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1288. [2023-11-06 23:04:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 650 states have (on average 2.0692307692307694) internal successors, (1345), 1277 states have internal predecessors, (1345), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 23:04:01,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1389 transitions. [2023-11-06 23:04:01,512 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1389 transitions. Word has length 7 [2023-11-06 23:04:01,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:01,513 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 1389 transitions. [2023-11-06 23:04:01,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:01,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1389 transitions. [2023-11-06 23:04:01,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 23:04:01,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:01,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:01,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 23:04:01,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:01,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:01,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:01,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023058, now seen corresponding path program 1 times [2023-11-06 23:04:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:01,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573439487] [2023-11-06 23:04:01,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:01,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:01,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:01,733 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:01,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 23:04:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:01,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:04:01,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:01,905 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:04:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:01,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:01,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:01,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573439487] [2023-11-06 23:04:01,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573439487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:01,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:01,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:04:01,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447312441] [2023-11-06 23:04:01,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:01,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:04:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:01,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:04:01,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:01,937 INFO L87 Difference]: Start difference. First operand 1288 states and 1389 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:04,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:04,806 INFO L93 Difference]: Finished difference Result 1619 states and 1748 transitions. [2023-11-06 23:04:04,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:04:04,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 23:04:04,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:04,818 INFO L225 Difference]: With dead ends: 1619 [2023-11-06 23:04:04,818 INFO L226 Difference]: Without dead ends: 1619 [2023-11-06 23:04:04,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:04,820 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 994 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:04,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1638 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-06 23:04:04,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2023-11-06 23:04:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1241. [2023-11-06 23:04:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 650 states have (on average 1.9953846153846153) internal successors, (1297), 1230 states have internal predecessors, (1297), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 23:04:04,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1341 transitions. [2023-11-06 23:04:04,868 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1341 transitions. Word has length 8 [2023-11-06 23:04:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:04,869 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1341 transitions. [2023-11-06 23:04:04,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:04,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1341 transitions. [2023-11-06 23:04:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 23:04:04,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:04,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:04,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:05,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:05,088 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:05,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:05,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023059, now seen corresponding path program 1 times [2023-11-06 23:04:05,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:05,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234401590] [2023-11-06 23:04:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:05,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:05,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:05,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:05,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 23:04:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:05,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:04:05,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:05,258 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:04:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:05,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:05,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:05,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234401590] [2023-11-06 23:04:05,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234401590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:05,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:05,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:04:05,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785436860] [2023-11-06 23:04:05,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:05,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:04:05,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:05,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:04:05,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:05,311 INFO L87 Difference]: Start difference. First operand 1241 states and 1341 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:09,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:09,386 INFO L93 Difference]: Finished difference Result 1715 states and 1850 transitions. [2023-11-06 23:04:09,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:04:09,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 23:04:09,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:09,398 INFO L225 Difference]: With dead ends: 1715 [2023-11-06 23:04:09,398 INFO L226 Difference]: Without dead ends: 1715 [2023-11-06 23:04:09,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:09,400 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 692 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:09,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 2035 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-06 23:04:09,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-06 23:04:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1491. [2023-11-06 23:04:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 908 states have (on average 1.9812775330396475) internal successors, (1799), 1478 states have internal predecessors, (1799), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 23:04:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1847 transitions. [2023-11-06 23:04:09,446 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1847 transitions. Word has length 8 [2023-11-06 23:04:09,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:09,446 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 1847 transitions. [2023-11-06 23:04:09,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:09,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1847 transitions. [2023-11-06 23:04:09,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 23:04:09,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:09,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:09,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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)] Ended with exit code 0 [2023-11-06 23:04:09,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:09,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr533REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:09,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:09,659 INFO L85 PathProgramCache]: Analyzing trace with hash -364322708, now seen corresponding path program 1 times [2023-11-06 23:04:09,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:09,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890512273] [2023-11-06 23:04:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:09,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:09,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:09,662 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:09,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 23:04:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:09,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:04:09,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:09,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:09,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:09,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890512273] [2023-11-06 23:04:09,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890512273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:09,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:09,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:04:09,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934807109] [2023-11-06 23:04:09,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:09,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:04:09,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:09,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:04:09,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:09,931 INFO L87 Difference]: Start difference. First operand 1491 states and 1847 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:10,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:10,537 INFO L93 Difference]: Finished difference Result 2318 states and 2893 transitions. [2023-11-06 23:04:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:04:10,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 23:04:10,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:10,553 INFO L225 Difference]: With dead ends: 2318 [2023-11-06 23:04:10,553 INFO L226 Difference]: Without dead ends: 2318 [2023-11-06 23:04:10,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:10,554 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 754 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:10,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2586 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 23:04:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2023-11-06 23:04:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1900. [2023-11-06 23:04:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1315 states have (on average 1.9650190114068442) internal successors, (2584), 1885 states have internal predecessors, (2584), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2636 transitions. [2023-11-06 23:04:10,618 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2636 transitions. Word has length 11 [2023-11-06 23:04:10,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:10,619 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2636 transitions. [2023-11-06 23:04:10,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2636 transitions. [2023-11-06 23:04:10,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 23:04:10,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:10,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:10,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:10,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:10,832 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr344REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:10,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1480660580, now seen corresponding path program 1 times [2023-11-06 23:04:10,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:10,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008577251] [2023-11-06 23:04:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:10,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:10,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:10,835 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:10,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 23:04:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:11,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:04:11,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:11,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:11,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:11,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008577251] [2023-11-06 23:04:11,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008577251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:11,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:11,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:04:11,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412868516] [2023-11-06 23:04:11,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:11,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:04:11,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:11,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:04:11,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:11,040 INFO L87 Difference]: Start difference. First operand 1900 states and 2636 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:11,097 INFO L93 Difference]: Finished difference Result 1804 states and 2464 transitions. [2023-11-06 23:04:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:04:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 23:04:11,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:11,110 INFO L225 Difference]: With dead ends: 1804 [2023-11-06 23:04:11,110 INFO L226 Difference]: Without dead ends: 1804 [2023-11-06 23:04:11,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:11,112 INFO L413 NwaCegarLoop]: 1260 mSDtfsCounter, 81 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:11,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2448 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:04:11,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2023-11-06 23:04:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1804. [2023-11-06 23:04:11,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1243 states have (on average 1.9404666130329846) internal successors, (2412), 1789 states have internal predecessors, (2412), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2464 transitions. [2023-11-06 23:04:11,182 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2464 transitions. Word has length 13 [2023-11-06 23:04:11,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:11,183 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2464 transitions. [2023-11-06 23:04:11,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2464 transitions. [2023-11-06 23:04:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 23:04:11,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:11,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:11,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:11,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:11,399 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr638ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:11,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash -147957479, now seen corresponding path program 1 times [2023-11-06 23:04:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:11,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090768702] [2023-11-06 23:04:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:11,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:11,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:11,405 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:11,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 23:04:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:11,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:04:11,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:11,682 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:04:11,683 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:04:11,684 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:04:11,694 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-06 23:04:11,770 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:04:11,770 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-06 23:04:11,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:11,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:11,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:11,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090768702] [2023-11-06 23:04:11,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090768702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:11,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:11,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:04:11,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892216503] [2023-11-06 23:04:11,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:11,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:04:11,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:11,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:04:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:11,799 INFO L87 Difference]: Start difference. First operand 1804 states and 2464 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:13,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:13,854 INFO L93 Difference]: Finished difference Result 2456 states and 3378 transitions. [2023-11-06 23:04:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-06 23:04:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:13,869 INFO L225 Difference]: With dead ends: 2456 [2023-11-06 23:04:13,869 INFO L226 Difference]: Without dead ends: 2456 [2023-11-06 23:04:13,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:13,870 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 466 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:13,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 3570 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 23:04:13,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2023-11-06 23:04:13,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 1803. [2023-11-06 23:04:13,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1242 states have (on average 1.9404186795491143) internal successors, (2410), 1788 states have internal predecessors, (2410), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:13,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2462 transitions. [2023-11-06 23:04:13,925 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2462 transitions. Word has length 14 [2023-11-06 23:04:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:13,926 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 2462 transitions. [2023-11-06 23:04:13,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2462 transitions. [2023-11-06 23:04:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 23:04:13,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:13,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:13,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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)] Ended with exit code 0 [2023-11-06 23:04:14,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:14,140 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:14,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:14,141 INFO L85 PathProgramCache]: Analyzing trace with hash -237495490, now seen corresponding path program 1 times [2023-11-06 23:04:14,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:14,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256368165] [2023-11-06 23:04:14,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:14,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:14,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:14,143 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:14,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 23:04:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:14,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:04:14,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:14,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:14,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:14,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:14,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256368165] [2023-11-06 23:04:14,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256368165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:14,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:14,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:04:14,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942698176] [2023-11-06 23:04:14,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:14,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:04:14,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:04:14,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:14,392 INFO L87 Difference]: Start difference. First operand 1803 states and 2462 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:14,452 INFO L93 Difference]: Finished difference Result 1743 states and 2376 transitions. [2023-11-06 23:04:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:04:14,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-06 23:04:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:14,465 INFO L225 Difference]: With dead ends: 1743 [2023-11-06 23:04:14,465 INFO L226 Difference]: Without dead ends: 1743 [2023-11-06 23:04:14,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:04:14,468 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 81 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:14,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2362 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:04:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2023-11-06 23:04:14,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2023-11-06 23:04:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1206 states have (on average 1.9270315091210615) internal successors, (2324), 1728 states have internal predecessors, (2324), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2376 transitions. [2023-11-06 23:04:14,513 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2376 transitions. Word has length 18 [2023-11-06 23:04:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:14,514 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2376 transitions. [2023-11-06 23:04:14,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2376 transitions. [2023-11-06 23:04:14,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 23:04:14,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:14,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:14,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:14,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:14,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:14,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:14,729 INFO L85 PathProgramCache]: Analyzing trace with hash -599899528, now seen corresponding path program 1 times [2023-11-06 23:04:14,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:14,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290273515] [2023-11-06 23:04:14,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:14,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:14,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:14,731 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:14,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 23:04:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:14,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:04:14,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:14,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:14,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290273515] [2023-11-06 23:04:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290273515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:04:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241254713] [2023-11-06 23:04:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:14,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:04:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:14,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:04:14,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:14,997 INFO L87 Difference]: Start difference. First operand 1743 states and 2376 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:15,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:15,113 INFO L93 Difference]: Finished difference Result 1715 states and 2320 transitions. [2023-11-06 23:04:15,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:15,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-06 23:04:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:15,123 INFO L225 Difference]: With dead ends: 1715 [2023-11-06 23:04:15,124 INFO L226 Difference]: Without dead ends: 1715 [2023-11-06 23:04:15,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:15,125 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 62 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:15,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3482 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:04:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-06 23:04:15,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1713. [2023-11-06 23:04:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1190 states have (on average 1.9042016806722688) internal successors, (2266), 1698 states have internal predecessors, (2266), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2318 transitions. [2023-11-06 23:04:15,172 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2318 transitions. Word has length 20 [2023-11-06 23:04:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:15,172 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2318 transitions. [2023-11-06 23:04:15,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2318 transitions. [2023-11-06 23:04:15,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 23:04:15,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:15,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:15,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:15,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:15,389 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:15,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash 453907206, now seen corresponding path program 1 times [2023-11-06 23:04:15,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:15,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522052711] [2023-11-06 23:04:15,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:15,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:15,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:15,391 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:15,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 23:04:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:15,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:04:15,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:15,627 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:04:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:15,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:15,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:15,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522052711] [2023-11-06 23:04:15,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522052711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:15,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:15,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:04:15,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255959421] [2023-11-06 23:04:15,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:15,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:04:15,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:15,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:04:15,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:15,762 INFO L87 Difference]: Start difference. First operand 1713 states and 2318 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:19,026 INFO L93 Difference]: Finished difference Result 1723 states and 2326 transitions. [2023-11-06 23:04:19,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:19,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-06 23:04:19,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:19,034 INFO L225 Difference]: With dead ends: 1723 [2023-11-06 23:04:19,034 INFO L226 Difference]: Without dead ends: 1723 [2023-11-06 23:04:19,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:19,035 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 876 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:19,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1549 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-06 23:04:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-11-06 23:04:19,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1709. [2023-11-06 23:04:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1190 states have (on average 1.8974789915966386) internal successors, (2258), 1694 states have internal predecessors, (2258), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2310 transitions. [2023-11-06 23:04:19,084 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2310 transitions. Word has length 34 [2023-11-06 23:04:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:19,085 INFO L495 AbstractCegarLoop]: Abstraction has 1709 states and 2310 transitions. [2023-11-06 23:04:19,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2310 transitions. [2023-11-06 23:04:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 23:04:19,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:19,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:19,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 23:04:19,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:19,299 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:19,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:19,300 INFO L85 PathProgramCache]: Analyzing trace with hash 453907207, now seen corresponding path program 1 times [2023-11-06 23:04:19,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:19,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673880103] [2023-11-06 23:04:19,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:19,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:19,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:19,302 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:19,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 23:04:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:19,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:04:19,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:19,556 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:04:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:19,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:19,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:19,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673880103] [2023-11-06 23:04:19,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673880103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:19,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:19,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:04:19,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740802483] [2023-11-06 23:04:19,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:19,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:04:19,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:19,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:04:19,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:19,811 INFO L87 Difference]: Start difference. First operand 1709 states and 2310 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:24,814 INFO L93 Difference]: Finished difference Result 1906 states and 2306 transitions. [2023-11-06 23:04:24,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:24,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-06 23:04:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:24,827 INFO L225 Difference]: With dead ends: 1906 [2023-11-06 23:04:24,827 INFO L226 Difference]: Without dead ends: 1906 [2023-11-06 23:04:24,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:24,828 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 576 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:24,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 2891 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-06 23:04:24,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2023-11-06 23:04:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1705. [2023-11-06 23:04:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1190 states have (on average 1.8907563025210083) internal successors, (2250), 1690 states have internal predecessors, (2250), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2302 transitions. [2023-11-06 23:04:24,875 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2302 transitions. Word has length 34 [2023-11-06 23:04:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:24,875 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2302 transitions. [2023-11-06 23:04:24,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2302 transitions. [2023-11-06 23:04:24,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 23:04:24,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:24,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:24,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:25,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:25,095 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:25,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:25,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1073251150, now seen corresponding path program 1 times [2023-11-06 23:04:25,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:25,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104242071] [2023-11-06 23:04:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:25,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:25,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:25,098 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:25,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 23:04:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:25,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:04:25,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:25,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:25,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:25,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104242071] [2023-11-06 23:04:25,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104242071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:25,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:25,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:04:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154455268] [2023-11-06 23:04:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:25,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:04:25,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:25,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:04:25,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:25,518 INFO L87 Difference]: Start difference. First operand 1705 states and 2302 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:25,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:25,598 INFO L93 Difference]: Finished difference Result 1693 states and 2282 transitions. [2023-11-06 23:04:25,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:25,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-06 23:04:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:25,608 INFO L225 Difference]: With dead ends: 1693 [2023-11-06 23:04:25,608 INFO L226 Difference]: Without dead ends: 1693 [2023-11-06 23:04:25,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:25,609 INFO L413 NwaCegarLoop]: 1166 mSDtfsCounter, 31 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:25,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3460 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:04:25,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2023-11-06 23:04:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1693. [2023-11-06 23:04:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1178 states have (on average 1.8930390492359932) internal successors, (2230), 1678 states have internal predecessors, (2230), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 23:04:25,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2282 transitions. [2023-11-06 23:04:25,646 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2282 transitions. Word has length 53 [2023-11-06 23:04:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:25,647 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2282 transitions. [2023-11-06 23:04:25,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2282 transitions. [2023-11-06 23:04:25,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 23:04:25,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:25,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:25,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:25,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:25,863 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:25,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:25,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1738633470, now seen corresponding path program 1 times [2023-11-06 23:04:25,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:25,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536286492] [2023-11-06 23:04:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:25,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:25,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:25,867 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:25,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-06 23:04:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:26,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 23:04:26,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:26,342 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:04:26,354 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:04:27,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:04:27,090 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 23:04:27,104 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:04:27,105 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 23:04:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:27,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:27,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:27,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536286492] [2023-11-06 23:04:27,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536286492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:27,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:27,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:04:27,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716765458] [2023-11-06 23:04:27,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:27,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:04:27,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:27,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:04:27,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:27,124 INFO L87 Difference]: Start difference. First operand 1693 states and 2282 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:30,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:30,179 INFO L93 Difference]: Finished difference Result 1666 states and 2256 transitions. [2023-11-06 23:04:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:30,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-11-06 23:04:30,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:30,190 INFO L225 Difference]: With dead ends: 1666 [2023-11-06 23:04:30,190 INFO L226 Difference]: Without dead ends: 1666 [2023-11-06 23:04:30,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:30,192 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 1549 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:30,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 785 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-06 23:04:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2023-11-06 23:04:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1269. [2023-11-06 23:04:30,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 797 states have (on average 1.8117942283563362) internal successors, (1444), 1257 states have internal predecessors, (1444), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 23:04:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1490 transitions. [2023-11-06 23:04:30,223 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1490 transitions. Word has length 61 [2023-11-06 23:04:30,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:30,223 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 1490 transitions. [2023-11-06 23:04:30,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:30,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1490 transitions. [2023-11-06 23:04:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 23:04:30,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:30,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:30,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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)] Ended with exit code 0 [2023-11-06 23:04:30,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:30,441 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:30,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash 241058079, now seen corresponding path program 1 times [2023-11-06 23:04:30,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:30,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941571404] [2023-11-06 23:04:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:30,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:30,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:30,443 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:30,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 23:04:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:30,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:04:30,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:30,879 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:04:30,898 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:04:30,941 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:04:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:30,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:30,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:30,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941571404] [2023-11-06 23:04:30,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941571404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:30,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:30,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:04:30,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330556170] [2023-11-06 23:04:30,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:30,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:04:30,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:30,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:04:30,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:30,961 INFO L87 Difference]: Start difference. First operand 1269 states and 1490 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:34,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:34,712 INFO L93 Difference]: Finished difference Result 1268 states and 1489 transitions. [2023-11-06 23:04:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:04:34,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-06 23:04:34,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:34,724 INFO L225 Difference]: With dead ends: 1268 [2023-11-06 23:04:34,724 INFO L226 Difference]: Without dead ends: 1268 [2023-11-06 23:04:34,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:04:34,725 INFO L413 NwaCegarLoop]: 1137 mSDtfsCounter, 4 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:34,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3001 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-06 23:04:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2023-11-06 23:04:34,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2023-11-06 23:04:34,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 797 states have (on average 1.8105395232120451) internal successors, (1443), 1256 states have internal predecessors, (1443), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 23:04:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1489 transitions. [2023-11-06 23:04:34,762 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1489 transitions. Word has length 66 [2023-11-06 23:04:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:34,763 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1489 transitions. [2023-11-06 23:04:34,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1489 transitions. [2023-11-06 23:04:34,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 23:04:34,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:34,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:34,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:34,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:34,985 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:34,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:34,985 INFO L85 PathProgramCache]: Analyzing trace with hash 241058080, now seen corresponding path program 1 times [2023-11-06 23:04:34,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:34,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236035117] [2023-11-06 23:04:34,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:34,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:34,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:34,988 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:35,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-06 23:04:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:35,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 23:04:35,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:35,430 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:04:35,460 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-06 23:04:35,477 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:04:35,544 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-06 23:04:35,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:35,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:35,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:35,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236035117] [2023-11-06 23:04:35,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236035117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:35,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:35,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:04:35,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988201582] [2023-11-06 23:04:35,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:35,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:04:35,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:35,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:04:35,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:35,577 INFO L87 Difference]: Start difference. First operand 1268 states and 1489 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:40,360 INFO L93 Difference]: Finished difference Result 1267 states and 1488 transitions. [2023-11-06 23:04:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:04:40,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-06 23:04:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:40,366 INFO L225 Difference]: With dead ends: 1267 [2023-11-06 23:04:40,366 INFO L226 Difference]: Without dead ends: 1267 [2023-11-06 23:04:40,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:04:40,367 INFO L413 NwaCegarLoop]: 1137 mSDtfsCounter, 2 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:40,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3062 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-06 23:04:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2023-11-06 23:04:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1267. [2023-11-06 23:04:40,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 796 states have (on average 1.8115577889447236) internal successors, (1442), 1255 states have internal predecessors, (1442), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 23:04:40,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1488 transitions. [2023-11-06 23:04:40,393 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1488 transitions. Word has length 66 [2023-11-06 23:04:40,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:40,394 INFO L495 AbstractCegarLoop]: Abstraction has 1267 states and 1488 transitions. [2023-11-06 23:04:40,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:40,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1488 transitions. [2023-11-06 23:04:40,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 23:04:40,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:40,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:40,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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)] Ended with exit code 0 [2023-11-06 23:04:40,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:40,612 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:40,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:40,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1538135942, now seen corresponding path program 1 times [2023-11-06 23:04:40,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:40,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396562255] [2023-11-06 23:04:40,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:40,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:40,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:40,615 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:40,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-06 23:04:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:41,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:04:41,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:41,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:04:41,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:41,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396562255] [2023-11-06 23:04:41,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396562255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:41,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:41,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:04:41,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779891124] [2023-11-06 23:04:41,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:41,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:04:41,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:41,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:04:41,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:04:41,064 INFO L87 Difference]: Start difference. First operand 1267 states and 1488 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:04:41,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:41,139 INFO L93 Difference]: Finished difference Result 1270 states and 1492 transitions. [2023-11-06 23:04:41,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:04:41,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2023-11-06 23:04:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:41,156 INFO L225 Difference]: With dead ends: 1270 [2023-11-06 23:04:41,164 INFO L226 Difference]: Without dead ends: 1270 [2023-11-06 23:04:41,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:04:41,165 INFO L413 NwaCegarLoop]: 1137 mSDtfsCounter, 2 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:41,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3406 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:04:41,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2023-11-06 23:04:41,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1270. [2023-11-06 23:04:41,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 798 states have (on average 1.8107769423558897) internal successors, (1445), 1258 states have internal predecessors, (1445), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 23:04:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1492 transitions. [2023-11-06 23:04:41,238 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1492 transitions. Word has length 74 [2023-11-06 23:04:41,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:41,239 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1492 transitions. [2023-11-06 23:04:41,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:04:41,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1492 transitions. [2023-11-06 23:04:41,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 23:04:41,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:41,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:41,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:41,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:41,463 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:41,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:41,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1064225796, now seen corresponding path program 1 times [2023-11-06 23:04:41,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:41,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781186538] [2023-11-06 23:04:41,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:41,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:41,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:41,466 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:41,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-06 23:04:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:41,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:04:41,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:41,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:04:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:42,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:42,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781186538] [2023-11-06 23:04:42,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781186538] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:04:42,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:04:42,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 23:04:42,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090441752] [2023-11-06 23:04:42,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:04:42,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:04:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:42,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:04:42,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:04:42,022 INFO L87 Difference]: Start difference. First operand 1270 states and 1492 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:04:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:42,252 INFO L93 Difference]: Finished difference Result 1282 states and 1509 transitions. [2023-11-06 23:04:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:04:42,253 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2023-11-06 23:04:42,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:42,257 INFO L225 Difference]: With dead ends: 1282 [2023-11-06 23:04:42,257 INFO L226 Difference]: Without dead ends: 1282 [2023-11-06 23:04:42,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-06 23:04:42,259 INFO L413 NwaCegarLoop]: 1138 mSDtfsCounter, 12 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:42,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4540 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:04:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2023-11-06 23:04:42,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1280. [2023-11-06 23:04:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 807 states have (on average 1.809169764560099) internal successors, (1460), 1267 states have internal predecessors, (1460), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 23:04:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1507 transitions. [2023-11-06 23:04:42,296 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1507 transitions. Word has length 75 [2023-11-06 23:04:42,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:42,297 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 1507 transitions. [2023-11-06 23:04:42,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:04:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1507 transitions. [2023-11-06 23:04:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 23:04:42,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:42,303 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:42,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:42,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:42,518 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:42,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:42,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1602861306, now seen corresponding path program 2 times [2023-11-06 23:04:42,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:42,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540750252] [2023-11-06 23:04:42,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:04:42,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:42,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:42,521 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:42,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 (20)] Waiting until timeout for monitored process [2023-11-06 23:04:43,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:04:43,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:04:43,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 23:04:43,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:43,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:04:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:43,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:43,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540750252] [2023-11-06 23:04:43,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540750252] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:04:43,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:04:43,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-06 23:04:43,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134732112] [2023-11-06 23:04:43,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:04:43,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 23:04:43,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:43,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 23:04:43,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:04:43,515 INFO L87 Difference]: Start difference. First operand 1280 states and 1507 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:04:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:44,269 INFO L93 Difference]: Finished difference Result 1301 states and 1535 transitions. [2023-11-06 23:04:44,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 23:04:44,270 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2023-11-06 23:04:44,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:44,274 INFO L225 Difference]: With dead ends: 1301 [2023-11-06 23:04:44,274 INFO L226 Difference]: Without dead ends: 1297 [2023-11-06 23:04:44,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-06 23:04:44,276 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 21 mSDsluCounter, 5689 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6830 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:44,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6830 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:04:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2023-11-06 23:04:44,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1289. [2023-11-06 23:04:44,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 816 states have (on average 1.803921568627451) internal successors, (1472), 1276 states have internal predecessors, (1472), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 23:04:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1519 transitions. [2023-11-06 23:04:44,313 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1519 transitions. Word has length 78 [2023-11-06 23:04:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:44,313 INFO L495 AbstractCegarLoop]: Abstraction has 1289 states and 1519 transitions. [2023-11-06 23:04:44,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:04:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1519 transitions. [2023-11-06 23:04:44,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-06 23:04:44,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:44,315 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:44,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 (20)] Ended with exit code 0 [2023-11-06 23:04:44,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:44,541 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:44,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:44,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1308984902, now seen corresponding path program 3 times [2023-11-06 23:04:44,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:44,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792094666] [2023-11-06 23:04:44,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 23:04:44,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:44,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:44,544 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:44,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-06 23:04:45,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 23:04:45,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:04:45,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 23:04:45,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:45,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:04:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:46,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:46,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792094666] [2023-11-06 23:04:46,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792094666] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:04:46,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:04:46,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-06 23:04:46,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813114050] [2023-11-06 23:04:46,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:04:46,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 23:04:46,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:46,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 23:04:46,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-06 23:04:46,778 INFO L87 Difference]: Start difference. First operand 1289 states and 1519 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:04:50,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:04:50,125 INFO L93 Difference]: Finished difference Result 1331 states and 1581 transitions. [2023-11-06 23:04:50,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-06 23:04:50,126 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2023-11-06 23:04:50,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:04:50,130 INFO L225 Difference]: With dead ends: 1331 [2023-11-06 23:04:50,130 INFO L226 Difference]: Without dead ends: 1325 [2023-11-06 23:04:50,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2023-11-06 23:04:50,132 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 51 mSDsluCounter, 12563 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 13709 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:04:50,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 13709 Invalid, 743 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 23:04:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2023-11-06 23:04:50,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1307. [2023-11-06 23:04:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 834 states have (on average 1.7925659472422062) internal successors, (1495), 1294 states have internal predecessors, (1495), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 23:04:50,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1542 transitions. [2023-11-06 23:04:50,171 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1542 transitions. Word has length 84 [2023-11-06 23:04:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:04:50,174 INFO L495 AbstractCegarLoop]: Abstraction has 1307 states and 1542 transitions. [2023-11-06 23:04:50,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:04:50,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1542 transitions. [2023-11-06 23:04:50,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 23:04:50,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:04:50,176 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:50,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-11-06 23:04:50,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:50,401 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:04:50,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:50,401 INFO L85 PathProgramCache]: Analyzing trace with hash -454904634, now seen corresponding path program 4 times [2023-11-06 23:04:50,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:04:50,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839994199] [2023-11-06 23:04:50,402 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 23:04:50,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:04:50,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:04:50,403 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:04:50,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 (22)] Waiting until timeout for monitored process [2023-11-06 23:04:50,975 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 23:04:50,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:04:51,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 23:04:51,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:04:51,585 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:51,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:04:53,783 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:53,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:04:53,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839994199] [2023-11-06 23:04:53,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839994199] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:04:53,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:04:53,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-06 23:04:53,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884054905] [2023-11-06 23:04:53,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:04:53,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-06 23:04:53,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:04:53,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-06 23:04:53,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 23:04:53,789 INFO L87 Difference]: Start difference. First operand 1307 states and 1542 transitions. Second operand has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:05:05,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:05:05,830 INFO L93 Difference]: Finished difference Result 1387 states and 1654 transitions. [2023-11-06 23:05:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-11-06 23:05:05,832 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-06 23:05:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:05:05,836 INFO L225 Difference]: With dead ends: 1387 [2023-11-06 23:05:05,836 INFO L226 Difference]: Without dead ends: 1383 [2023-11-06 23:05:05,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2023-11-06 23:05:05,843 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 72 mSDsluCounter, 28810 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 29968 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:05:05,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 29968 Invalid, 2523 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-06 23:05:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2023-11-06 23:05:05,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1341. [2023-11-06 23:05:05,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 868 states have (on average 1.7753456221198156) internal successors, (1541), 1328 states have internal predecessors, (1541), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 23:05:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1588 transitions. [2023-11-06 23:05:05,873 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1588 transitions. Word has length 96 [2023-11-06 23:05:05,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:05:05,874 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1588 transitions. [2023-11-06 23:05:05,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:05:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1588 transitions. [2023-11-06 23:05:05,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-06 23:05:05,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:05:05,876 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:05,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 (22)] Forceful destruction successful, exit code 0 [2023-11-06 23:05:06,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:05:06,092 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:05:06,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:06,093 INFO L85 PathProgramCache]: Analyzing trace with hash -965090810, now seen corresponding path program 5 times [2023-11-06 23:05:06,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:05:06,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020814300] [2023-11-06 23:05:06,093 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 23:05:06,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:05:06,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:05:06,095 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:05:06,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 (23)] Waiting until timeout for monitored process [2023-11-06 23:05:07,709 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 23:05:07,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:05:07,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-06 23:05:07,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:05:07,769 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:05:08,007 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 23:05:08,007 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 23:05:08,048 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:05:08,212 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 23:05:09,596 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:05:09,596 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 23:05:09,656 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 23:05:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:05:09,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:05:10,333 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1990 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_1990) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-06 23:05:10,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:05:10,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020814300] [2023-11-06 23:05:10,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020814300] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:05:10,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1759598028] [2023-11-06 23:05:10,336 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 23:05:10,336 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 23:05:10,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 23:05:10,338 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 23:05:10,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-06 23:06:19,638 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 23:06:19,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:06:19,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-06 23:06:19,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:06:19,880 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:06:20,095 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 23:06:20,095 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 23:06:20,120 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:06:20,197 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 23:06:21,184 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:06:21,185 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 23:06:21,233 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 23:06:21,245 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:06:21,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:06:21,730 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2452 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_2452) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-06 23:06:21,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1759598028] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:06:21,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:06:21,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-06 23:06:21,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042173242] [2023-11-06 23:06:21,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:06:21,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:06:21,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:06:21,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:06:21,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=85, Unknown=2, NotChecked=38, Total=156 [2023-11-06 23:06:21,735 INFO L87 Difference]: Start difference. First operand 1341 states and 1588 transitions. Second operand has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:06:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:06:29,033 INFO L93 Difference]: Finished difference Result 1352 states and 1597 transitions. [2023-11-06 23:06:29,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:06:29,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 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 118 [2023-11-06 23:06:29,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:06:29,038 INFO L225 Difference]: With dead ends: 1352 [2023-11-06 23:06:29,038 INFO L226 Difference]: Without dead ends: 1348 [2023-11-06 23:06:29,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 228 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=138, Unknown=2, NotChecked=50, Total=240 [2023-11-06 23:06:29,039 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 757 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:06:29,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 3143 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-06 23:06:29,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2023-11-06 23:06:29,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1340. [2023-11-06 23:06:29,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 868 states have (on average 1.7695852534562213) internal successors, (1536), 1327 states have internal predecessors, (1536), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 23:06:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1583 transitions. [2023-11-06 23:06:29,093 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1583 transitions. Word has length 118 [2023-11-06 23:06:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:06:29,094 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1583 transitions. [2023-11-06 23:06:29,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:06:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1583 transitions. [2023-11-06 23:06:29,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-06 23:06:29,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:06:29,096 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:06:29,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-06 23:06:29,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 (23)] Forceful destruction successful, exit code 0 [2023-11-06 23:06:29,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:06:29,510 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-06 23:06:29,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:06:29,511 INFO L85 PathProgramCache]: Analyzing trace with hash -965090809, now seen corresponding path program 1 times [2023-11-06 23:06:29,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:06:29,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524127243] [2023-11-06 23:06:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:29,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:06:29,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:06:29,514 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 23:06:29,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/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 (25)] Waiting until timeout for monitored process [2023-11-06 23:06:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:06:30,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 109 conjunts are in the unsatisfiable core [2023-11-06 23:06:30,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:06:30,410 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:06:30,585 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:06:30,586 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 23:06:30,594 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:06:30,626 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-06 23:06:30,647 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:06:30,822 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-06 23:06:30,829 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-06 23:06:31,708 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:06:31,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-06 23:06:31,723 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-06 23:06:31,793 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-06 23:06:31,799 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-06 23:06:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:06:31,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:06:33,545 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3005 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3006) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3005 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv16 32)) (bvadd .cse1 (_ bv20 32))))))) is different from false [2023-11-06 23:06:33,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:06:33,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524127243] [2023-11-06 23:06:33,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524127243] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:06:33,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [276790444] [2023-11-06 23:06:33,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:06:33,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 23:06:33,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 23:06:33,560 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 23:06:33,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4c261e8-529b-4afc-9835-d4b6f611e3cf/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process