./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.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_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:17:54,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:17:54,440 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:17:54,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:17:54,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:17:54,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:17:54,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:17:54,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:17:54,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:17:54,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:17:54,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:17:54,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:17:54,508 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:17:54,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:17:54,510 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:17:54,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:17:54,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:17:54,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:17:54,513 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:17:54,514 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:17:54,514 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:17:54,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:17:54,516 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:17:54,517 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:17:54,517 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:17:54,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:17:54,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:17:54,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:17:54,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:17:54,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:17:54,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:17:54,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:17:54,523 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:17:54,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:17:54,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:17:54,526 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:17:54,526 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:17:54,527 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:17:54,527 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2023-11-06 22:17:54,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:17:54,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:17:54,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:17:54,944 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:17:54,945 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:17:54,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-06 22:17:58,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:17:59,051 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:17:59,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-06 22:17:59,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data/40f0a3790/b7f05840b0ba474d81e7a41bd2b57e94/FLAG6e25027ed [2023-11-06 22:17:59,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data/40f0a3790/b7f05840b0ba474d81e7a41bd2b57e94 [2023-11-06 22:17:59,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:17:59,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:17:59,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:17:59,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:17:59,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:17:59,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:17:59" (1/1) ... [2023-11-06 22:17:59,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7705d322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:59, skipping insertion in model container [2023-11-06 22:17:59,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:17:59" (1/1) ... [2023-11-06 22:17:59,240 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:18:00,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:00,437 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 22:18:00,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c5b943a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:00, skipping insertion in model container [2023-11-06 22:18:00,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:18:00,439 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:18:00,441 INFO L158 Benchmark]: Toolchain (without parser) took 1306.70ms. Allocated memory is still 113.2MB. Free memory was 71.1MB in the beginning and 48.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:18:00,442 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 113.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:18:00,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1300.88ms. Allocated memory is still 113.2MB. Free memory was 71.1MB in the beginning and 48.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:18:00,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 113.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1300.88ms. Allocated memory is still 113.2MB. Free memory was 71.1MB in the beginning and 48.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: 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_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:18:03,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:18:03,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 22:18:03,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:18:03,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:18:03,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:18:03,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:18:03,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:18:03,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:18:03,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:18:03,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:18:03,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:18:03,465 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:18:03,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:18:03,468 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:18:03,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:18:03,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:18:03,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:18:03,470 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:18:03,471 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:18:03,471 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:18:03,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:18:03,472 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:18:03,473 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:18:03,473 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:18:03,474 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:18:03,474 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:18:03,474 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:18:03,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:18:03,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:18:03,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:18:03,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:18:03,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:18:03,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:18:03,477 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:18:03,477 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:18:03,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:18:03,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:18:03,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:18:03,479 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:18:03,479 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:18:03,480 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_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2023-11-06 22:18:03,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:18:03,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:18:03,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:18:03,970 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:18:03,971 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:18:03,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-06 22:18:07,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:18:08,144 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:18:08,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-06 22:18:08,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data/b04015d8c/5de75489b024462795590aa5a681e8cd/FLAG4035d7097 [2023-11-06 22:18:08,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/data/b04015d8c/5de75489b024462795590aa5a681e8cd [2023-11-06 22:18:08,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:18:08,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:18:08,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:18:08,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:18:08,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:18:08,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:18:08" (1/1) ... [2023-11-06 22:18:08,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcebaaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:08, skipping insertion in model container [2023-11-06 22:18:08,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:18:08" (1/1) ... [2023-11-06 22:18:08,314 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:18:09,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:09,374 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:18:09,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:18:09,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:09,590 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:18:09,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:18:09,769 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:18:09,777 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:18:09,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09 WrapperNode [2023-11-06 22:18:09,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:18:09,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:18:09,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:18:09,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:18:09,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:09,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:09,991 INFO L138 Inliner]: procedures = 285, calls = 351, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1213 [2023-11-06 22:18:09,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:18:09,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:18:09,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:18:09,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:18:10,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:18:10,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:18:10,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:18:10,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:18:10,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (1/1) ... [2023-11-06 22:18:10,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:18:10,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:18:10,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:18:10,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:18:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:18:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:18:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:18:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:18:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:18:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 22:18:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:18:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:18:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:18:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:18:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-06 22:18:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-06 22:18:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:18:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:18:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:18:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:18:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-06 22:18:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-06 22:18:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:18:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-06 22:18:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-06 22:18:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:18:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:18:10,744 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:18:10,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:18:17,790 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:18:17,818 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:18:17,818 INFO L302 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-06 22:18:17,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:17 BoogieIcfgContainer [2023-11-06 22:18:17,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:18:17,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:18:17,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:18:17,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:18:17,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:18:08" (1/3) ... [2023-11-06 22:18:17,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650c4497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:18:17, skipping insertion in model container [2023-11-06 22:18:17,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:18:09" (2/3) ... [2023-11-06 22:18:17,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650c4497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:18:17, skipping insertion in model container [2023-11-06 22:18:17,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:18:17" (3/3) ... [2023-11-06 22:18:17,839 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2023-11-06 22:18:17,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:18:17,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 631 error locations. [2023-11-06 22:18:17,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:18:17,972 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;@3bf9fc39, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:18:17,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 631 error locations. [2023-11-06 22:18:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 1291 states, 635 states have (on average 2.222047244094488) internal successors, (1411), 1269 states have internal predecessors, (1411), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-06 22:18:17,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:18:17,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:17,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:18:17,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:18,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash 85465, now seen corresponding path program 1 times [2023-11-06 22:18:18,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:18,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868436745] [2023-11-06 22:18:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:18,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:18,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:18,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:18,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:18:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:18:18,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:18,418 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:18:18,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:18,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:18,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:18,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868436745] [2023-11-06 22:18:18,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868436745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:18,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:18,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:18:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840645030] [2023-11-06 22:18:18,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:18,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:18:18,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:18:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:18:18,504 INFO L87 Difference]: Start difference. First operand has 1291 states, 635 states have (on average 2.222047244094488) internal successors, (1411), 1269 states have internal predecessors, (1411), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:21,979 INFO L93 Difference]: Finished difference Result 1552 states and 1644 transitions. [2023-11-06 22:18:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:18:21,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 22:18:21,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:22,009 INFO L225 Difference]: With dead ends: 1552 [2023-11-06 22:18:22,010 INFO L226 Difference]: Without dead ends: 1550 [2023-11-06 22:18:22,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:18:22,016 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 915 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:22,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1273 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-06 22:18:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2023-11-06 22:18:22,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1312. [2023-11-06 22:18:22,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 671 states have (on average 2.0864381520119224) internal successors, (1400), 1292 states have internal predecessors, (1400), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:18:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1434 transitions. [2023-11-06 22:18:22,146 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1434 transitions. Word has length 3 [2023-11-06 22:18:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:22,146 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1434 transitions. [2023-11-06 22:18:22,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1434 transitions. [2023-11-06 22:18:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:18:22,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:22,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:18:22,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:22,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:22,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:22,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:22,358 INFO L85 PathProgramCache]: Analyzing trace with hash 85466, now seen corresponding path program 1 times [2023-11-06 22:18:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:22,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258408867] [2023-11-06 22:18:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:22,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:22,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:22,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:22,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:18:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:22,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:18:22,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:22,530 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:18:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:22,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:22,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258408867] [2023-11-06 22:18:22,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258408867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:22,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:22,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:18:22,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431068332] [2023-11-06 22:18:22,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:22,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:18:22,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:22,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:18:22,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:18:22,548 INFO L87 Difference]: Start difference. First operand 1312 states and 1434 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:28,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:28,003 INFO L93 Difference]: Finished difference Result 1908 states and 2079 transitions. [2023-11-06 22:18:28,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:18:28,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 22:18:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:28,016 INFO L225 Difference]: With dead ends: 1908 [2023-11-06 22:18:28,016 INFO L226 Difference]: Without dead ends: 1908 [2023-11-06 22:18:28,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:18:28,018 INFO L413 NwaCegarLoop]: 1059 mSDtfsCounter, 629 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:28,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1771 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-06 22:18:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2023-11-06 22:18:28,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1521. [2023-11-06 22:18:28,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 879 states have (on average 2.0671217292377704) internal successors, (1817), 1499 states have internal predecessors, (1817), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:18:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1855 transitions. [2023-11-06 22:18:28,073 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1855 transitions. Word has length 3 [2023-11-06 22:18:28,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:28,073 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 1855 transitions. [2023-11-06 22:18:28,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1855 transitions. [2023-11-06 22:18:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:18:28,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:28,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:28,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:18:28,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:28,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:28,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1307350193, now seen corresponding path program 1 times [2023-11-06 22:18:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618637938] [2023-11-06 22:18:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:28,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:28,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:28,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:28,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:18:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:28,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:18:28,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:28,584 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:18:28,594 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:18:28,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:18:28,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 22:18:28,742 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:18:28,743 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 22:18:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:28,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:28,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:28,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618637938] [2023-11-06 22:18:28,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618637938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:28,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:28,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:18:28,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042210253] [2023-11-06 22:18:28,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:28,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:28,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:28,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:28,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:28,782 INFO L87 Difference]: Start difference. First operand 1521 states and 1855 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 22:18:38,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:38,301 INFO L93 Difference]: Finished difference Result 2599 states and 3013 transitions. [2023-11-06 22:18:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 22:18:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:38,320 INFO L225 Difference]: With dead ends: 2599 [2023-11-06 22:18:38,320 INFO L226 Difference]: Without dead ends: 2599 [2023-11-06 22:18:38,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:38,322 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 1121 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:38,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1826 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-11-06 22:18:38,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2023-11-06 22:18:38,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 1670. [2023-11-06 22:18:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1028 states have (on average 2.046692607003891) internal successors, (2104), 1648 states have internal predecessors, (2104), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:18:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2142 transitions. [2023-11-06 22:18:38,390 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2142 transitions. Word has length 8 [2023-11-06 22:18:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:38,390 INFO L495 AbstractCegarLoop]: Abstraction has 1670 states and 2142 transitions. [2023-11-06 22:18:38,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 22:18:38,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2142 transitions. [2023-11-06 22:18:38,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:18:38,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:38,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:38,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:38,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:38,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:38,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:38,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150296, now seen corresponding path program 1 times [2023-11-06 22:18:38,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:38,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016906425] [2023-11-06 22:18:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:38,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:38,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:38,616 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:38,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:18:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:38,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:18:38,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:38,833 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:18:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:38,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:38,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:38,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016906425] [2023-11-06 22:18:38,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016906425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:38,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:38,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:18:38,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043996458] [2023-11-06 22:18:38,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:38,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:38,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:38,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:38,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:38,878 INFO L87 Difference]: Start difference. First operand 1670 states and 2142 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:44,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:44,500 INFO L93 Difference]: Finished difference Result 2849 states and 3555 transitions. [2023-11-06 22:18:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:18:44,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-06 22:18:44,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:44,519 INFO L225 Difference]: With dead ends: 2849 [2023-11-06 22:18:44,519 INFO L226 Difference]: Without dead ends: 2849 [2023-11-06 22:18:44,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 22:18:44,521 INFO L413 NwaCegarLoop]: 1337 mSDtfsCounter, 2355 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:44,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 2620 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-06 22:18:44,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2023-11-06 22:18:44,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 1625. [2023-11-06 22:18:44,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1028 states have (on average 1.9892996108949417) internal successors, (2045), 1603 states have internal predecessors, (2045), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:18:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2083 transitions. [2023-11-06 22:18:44,585 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2083 transitions. Word has length 9 [2023-11-06 22:18:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:44,585 INFO L495 AbstractCegarLoop]: Abstraction has 1625 states and 2083 transitions. [2023-11-06 22:18:44,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2083 transitions. [2023-11-06 22:18:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:18:44,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:44,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:44,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:44,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:44,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:44,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150295, now seen corresponding path program 1 times [2023-11-06 22:18:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:44,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116433072] [2023-11-06 22:18:44,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:44,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:44,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:44,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:44,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:18:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:44,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:18:44,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:45,007 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:18:45,060 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 22:18:45,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:45,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:45,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116433072] [2023-11-06 22:18:45,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116433072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:45,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:45,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:18:45,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891864420] [2023-11-06 22:18:45,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:45,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:45,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:45,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:45,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:45,064 INFO L87 Difference]: Start difference. First operand 1625 states and 2083 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:51,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:51,825 INFO L93 Difference]: Finished difference Result 2471 states and 3140 transitions. [2023-11-06 22:18:51,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:51,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-06 22:18:51,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:51,838 INFO L225 Difference]: With dead ends: 2471 [2023-11-06 22:18:51,838 INFO L226 Difference]: Without dead ends: 2471 [2023-11-06 22:18:51,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 22:18:51,839 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1598 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:51,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 2759 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-11-06 22:18:51,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-11-06 22:18:51,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 1615. [2023-11-06 22:18:51,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1028 states have (on average 1.965953307392996) internal successors, (2021), 1593 states have internal predecessors, (2021), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:18:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2059 transitions. [2023-11-06 22:18:51,891 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2059 transitions. Word has length 9 [2023-11-06 22:18:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:51,891 INFO L495 AbstractCegarLoop]: Abstraction has 1615 states and 2059 transitions. [2023-11-06 22:18:51,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2059 transitions. [2023-11-06 22:18:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:18:51,893 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:51,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:51,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:52,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:52,106 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:52,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash 910828941, now seen corresponding path program 1 times [2023-11-06 22:18:52,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:52,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419395627] [2023-11-06 22:18:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:52,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:52,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:52,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:52,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:18:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:52,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:18:52,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:52,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:52,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:52,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419395627] [2023-11-06 22:18:52,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419395627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:52,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:52,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:18:52,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094242220] [2023-11-06 22:18:52,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:52,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:52,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:52,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:52,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:52,386 INFO L87 Difference]: Start difference. First operand 1615 states and 2059 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:53,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:53,557 INFO L93 Difference]: Finished difference Result 2291 states and 2839 transitions. [2023-11-06 22:18:53,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:18:53,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 22:18:53,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:53,569 INFO L225 Difference]: With dead ends: 2291 [2023-11-06 22:18:53,570 INFO L226 Difference]: Without dead ends: 2291 [2023-11-06 22:18:53,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:18:53,571 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 755 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:53,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 3894 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 22:18:53,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2023-11-06 22:18:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 1878. [2023-11-06 22:18:53,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1288 states have (on average 1.970496894409938) internal successors, (2538), 1853 states have internal predecessors, (2538), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-06 22:18:53,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2582 transitions. [2023-11-06 22:18:53,628 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2582 transitions. Word has length 13 [2023-11-06 22:18:53,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:53,629 INFO L495 AbstractCegarLoop]: Abstraction has 1878 states and 2582 transitions. [2023-11-06 22:18:53,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:53,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2582 transitions. [2023-11-06 22:18:53,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:18:53,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:53,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:53,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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)] Ended with exit code 0 [2023-11-06 22:18:53,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:53,842 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr332REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:53,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:53,868 INFO L85 PathProgramCache]: Analyzing trace with hash 321620140, now seen corresponding path program 1 times [2023-11-06 22:18:53,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:53,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417508553] [2023-11-06 22:18:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:53,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:53,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:53,870 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:53,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 22:18:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:54,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:18:54,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:54,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:54,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:54,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417508553] [2023-11-06 22:18:54,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417508553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:54,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:54,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:18:54,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944429645] [2023-11-06 22:18:54,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:54,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:18:54,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:54,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:18:54,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:18:54,121 INFO L87 Difference]: Start difference. First operand 1878 states and 2582 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 22:18:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:54,179 INFO L93 Difference]: Finished difference Result 1782 states and 2410 transitions. [2023-11-06 22:18:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:18:54,180 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 22:18:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:54,193 INFO L225 Difference]: With dead ends: 1782 [2023-11-06 22:18:54,193 INFO L226 Difference]: Without dead ends: 1782 [2023-11-06 22:18:54,193 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 22:18:54,195 INFO L413 NwaCegarLoop]: 1236 mSDtfsCounter, 81 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2400 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 22:18:54,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2400 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:18:54,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2023-11-06 22:18:54,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1782. [2023-11-06 22:18:54,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1216 states have (on average 1.9457236842105263) internal successors, (2366), 1757 states have internal predecessors, (2366), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-06 22:18:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2410 transitions. [2023-11-06 22:18:54,257 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2410 transitions. Word has length 13 [2023-11-06 22:18:54,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:54,258 INFO L495 AbstractCegarLoop]: Abstraction has 1782 states and 2410 transitions. [2023-11-06 22:18:54,258 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 22:18:54,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2410 transitions. [2023-11-06 22:18:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 22:18:54,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:54,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:54,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:18:54,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:54,476 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:54,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:54,476 INFO L85 PathProgramCache]: Analyzing trace with hash -917031865, now seen corresponding path program 1 times [2023-11-06 22:18:54,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:54,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395940300] [2023-11-06 22:18:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:54,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:54,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:54,479 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:54,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:18:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:54,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:18:54,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:54,819 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:18:54,820 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:18:54,820 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:18:54,825 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 22:18:54,925 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:18:54,925 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 22:18:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:54,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:54,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395940300] [2023-11-06 22:18:54,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395940300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:54,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:54,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:18:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992901592] [2023-11-06 22:18:54,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:54,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:54,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:54,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:54,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:54,951 INFO L87 Difference]: Start difference. First operand 1782 states and 2410 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:57,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:57,620 INFO L93 Difference]: Finished difference Result 1919 states and 2305 transitions. [2023-11-06 22:18:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:57,622 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-06 22:18:57,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:57,631 INFO L225 Difference]: With dead ends: 1919 [2023-11-06 22:18:57,631 INFO L226 Difference]: Without dead ends: 1919 [2023-11-06 22:18:57,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 22:18:57,632 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 462 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:57,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 3526 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-06 22:18:57,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-11-06 22:18:57,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1451. [2023-11-06 22:18:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 887 states have (on average 1.940248027057497) internal successors, (1721), 1428 states have internal predecessors, (1721), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:18:57,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1761 transitions. [2023-11-06 22:18:57,672 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1761 transitions. Word has length 16 [2023-11-06 22:18:57,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:57,672 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 1761 transitions. [2023-11-06 22:18:57,672 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:57,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1761 transitions. [2023-11-06 22:18:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:18:57,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:57,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:57,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:57,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:57,887 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:57,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1057218028, now seen corresponding path program 1 times [2023-11-06 22:18:57,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:57,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596386251] [2023-11-06 22:18:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:57,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:57,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:57,891 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:57,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 22:18:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:58,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:18:58,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:58,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:58,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:58,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596386251] [2023-11-06 22:18:58,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596386251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:58,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:58,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:18:58,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39178704] [2023-11-06 22:18:58,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:58,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:18:58,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:18:58,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:18:58,189 INFO L87 Difference]: Start difference. First operand 1451 states and 1761 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:58,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:58,255 INFO L93 Difference]: Finished difference Result 1391 states and 1675 transitions. [2023-11-06 22:18:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:18:58,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-06 22:18:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:58,265 INFO L225 Difference]: With dead ends: 1391 [2023-11-06 22:18:58,265 INFO L226 Difference]: Without dead ends: 1391 [2023-11-06 22:18:58,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:18:58,269 INFO L413 NwaCegarLoop]: 1193 mSDtfsCounter, 81 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2314 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 22:18:58,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2314 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:18:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2023-11-06 22:18:58,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1391. [2023-11-06 22:18:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 851 states have (on average 1.9212690951821387) internal successors, (1635), 1368 states have internal predecessors, (1635), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:18:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1675 transitions. [2023-11-06 22:18:58,304 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1675 transitions. Word has length 19 [2023-11-06 22:18:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:58,304 INFO L495 AbstractCegarLoop]: Abstraction has 1391 states and 1675 transitions. [2023-11-06 22:18:58,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:58,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1675 transitions. [2023-11-06 22:18:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 22:18:58,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:58,307 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] [2023-11-06 22:18:58,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:58,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:58,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:58,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:58,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722190, now seen corresponding path program 1 times [2023-11-06 22:18:58,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:58,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112875442] [2023-11-06 22:18:58,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:58,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:58,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:58,530 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:58,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 22:18:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:58,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:18:58,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:58,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:58,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112875442] [2023-11-06 22:18:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112875442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:58,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:58,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:18:58,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724235004] [2023-11-06 22:18:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:58,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:18:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:58,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:18:58,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:18:58,840 INFO L87 Difference]: Start difference. First operand 1391 states and 1675 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:58,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:58,946 INFO L93 Difference]: Finished difference Result 1363 states and 1619 transitions. [2023-11-06 22:18:58,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:18:58,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-11-06 22:18:58,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:58,955 INFO L225 Difference]: With dead ends: 1363 [2023-11-06 22:18:58,955 INFO L226 Difference]: Without dead ends: 1363 [2023-11-06 22:18:58,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 22:18:58,956 INFO L413 NwaCegarLoop]: 1148 mSDtfsCounter, 62 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3410 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 22:18:58,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3410 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:18:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2023-11-06 22:18:59,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1361. [2023-11-06 22:18:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 835 states have (on average 1.888622754491018) internal successors, (1577), 1338 states have internal predecessors, (1577), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:18:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1617 transitions. [2023-11-06 22:18:59,007 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1617 transitions. Word has length 21 [2023-11-06 22:18:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:59,008 INFO L495 AbstractCegarLoop]: Abstraction has 1361 states and 1617 transitions. [2023-11-06 22:18:59,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:18:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1617 transitions. [2023-11-06 22:18:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:18:59,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:59,012 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] [2023-11-06 22:18:59,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:59,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:59,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:18:59,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:59,227 INFO L85 PathProgramCache]: Analyzing trace with hash -956254243, now seen corresponding path program 1 times [2023-11-06 22:18:59,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:18:59,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161250421] [2023-11-06 22:18:59,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:59,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:18:59,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:18:59,231 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:18:59,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 22:18:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:59,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:18:59,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:18:59,522 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:18:59,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:18:59,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:18:59,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:18:59,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161250421] [2023-11-06 22:18:59,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161250421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:59,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:59,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:18:59,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986468440] [2023-11-06 22:18:59,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:59,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:18:59,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:18:59,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:18:59,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:18:59,821 INFO L87 Difference]: Start difference. First operand 1361 states and 1617 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:07,732 INFO L93 Difference]: Finished difference Result 2110 states and 2511 transitions. [2023-11-06 22:19:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:19:07,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2023-11-06 22:19:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:07,745 INFO L225 Difference]: With dead ends: 2110 [2023-11-06 22:19:07,746 INFO L226 Difference]: Without dead ends: 2110 [2023-11-06 22:19:07,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:19:07,747 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 1365 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:07,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 3631 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-06 22:19:07,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2023-11-06 22:19:07,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1357. [2023-11-06 22:19:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 835 states have (on average 1.8790419161676646) internal successors, (1569), 1334 states have internal predecessors, (1569), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:19:07,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1609 transitions. [2023-11-06 22:19:07,785 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1609 transitions. Word has length 35 [2023-11-06 22:19:07,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:07,785 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1609 transitions. [2023-11-06 22:19:07,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:07,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1609 transitions. [2023-11-06 22:19:07,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:19:07,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:07,787 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] [2023-11-06 22:19:07,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:19:08,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:08,003 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:08,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:08,004 INFO L85 PathProgramCache]: Analyzing trace with hash -956254244, now seen corresponding path program 1 times [2023-11-06 22:19:08,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:08,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52112586] [2023-11-06 22:19:08,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:08,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:08,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:08,007 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:08,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 22:19:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:08,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:19:08,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:08,339 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:19:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:08,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:08,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:08,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52112586] [2023-11-06 22:19:08,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52112586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:08,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:08,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:19:08,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380121195] [2023-11-06 22:19:08,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:08,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:19:08,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:08,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:19:08,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:19:08,469 INFO L87 Difference]: Start difference. First operand 1357 states and 1609 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:14,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:14,506 INFO L93 Difference]: Finished difference Result 2444 states and 2925 transitions. [2023-11-06 22:19:14,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:19:14,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2023-11-06 22:19:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:14,518 INFO L225 Difference]: With dead ends: 2444 [2023-11-06 22:19:14,518 INFO L226 Difference]: Without dead ends: 2444 [2023-11-06 22:19:14,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:19:14,519 INFO L413 NwaCegarLoop]: 1124 mSDtfsCounter, 1591 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:14,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 3063 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-06 22:19:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2023-11-06 22:19:14,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 1353. [2023-11-06 22:19:14,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 835 states have (on average 1.8694610778443115) internal successors, (1561), 1330 states have internal predecessors, (1561), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:19:14,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1601 transitions. [2023-11-06 22:19:14,550 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1601 transitions. Word has length 35 [2023-11-06 22:19:14,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:14,550 INFO L495 AbstractCegarLoop]: Abstraction has 1353 states and 1601 transitions. [2023-11-06 22:19:14,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:14,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1601 transitions. [2023-11-06 22:19:14,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:19:14,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:14,552 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] [2023-11-06 22:19:14,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-06 22:19:14,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:14,765 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:14,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash 103981850, now seen corresponding path program 1 times [2023-11-06 22:19:14,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:14,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972293782] [2023-11-06 22:19:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:14,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:14,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:14,768 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:14,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 22:19:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:15,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:19:15,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:15,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:15,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:15,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972293782] [2023-11-06 22:19:15,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972293782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:15,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:15,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:19:15,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073303846] [2023-11-06 22:19:15,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:15,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:19:15,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:15,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:19:15,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:19:15,174 INFO L87 Difference]: Start difference. First operand 1353 states and 1601 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:15,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:15,249 INFO L93 Difference]: Finished difference Result 1341 states and 1581 transitions. [2023-11-06 22:19:15,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:19:15,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-11-06 22:19:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:15,257 INFO L225 Difference]: With dead ends: 1341 [2023-11-06 22:19:15,257 INFO L226 Difference]: Without dead ends: 1341 [2023-11-06 22:19:15,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 22:19:15,258 INFO L413 NwaCegarLoop]: 1142 mSDtfsCounter, 31 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3388 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 22:19:15,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3388 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:19:15,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-11-06 22:19:15,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1341. [2023-11-06 22:19:15,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 823 states have (on average 1.8724179829890644) internal successors, (1541), 1318 states have internal predecessors, (1541), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:19:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1581 transitions. [2023-11-06 22:19:15,298 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1581 transitions. Word has length 55 [2023-11-06 22:19:15,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:15,298 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1581 transitions. [2023-11-06 22:19:15,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1581 transitions. [2023-11-06 22:19:15,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:19:15,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:15,303 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] [2023-11-06 22:19:15,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:19:15,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:15,505 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:15,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:15,505 INFO L85 PathProgramCache]: Analyzing trace with hash -635872026, now seen corresponding path program 1 times [2023-11-06 22:19:15,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:15,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224050696] [2023-11-06 22:19:15,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:15,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:15,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:15,508 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:15,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-06 22:19:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:15,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:19:15,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:16,004 INFO L322 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2023-11-06 22:19:16,005 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2023-11-06 22:19:16,078 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-06 22:19:16,078 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2023-11-06 22:19:16,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:16,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:16,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224050696] [2023-11-06 22:19:16,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224050696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:16,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:16,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:19:16,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190256167] [2023-11-06 22:19:16,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:16,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:19:16,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:16,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:19:16,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:19:16,566 INFO L87 Difference]: Start difference. First operand 1341 states and 1581 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:21,756 INFO L93 Difference]: Finished difference Result 3109 states and 3652 transitions. [2023-11-06 22:19:21,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:19:21,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-06 22:19:21,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:21,766 INFO L225 Difference]: With dead ends: 3109 [2023-11-06 22:19:21,767 INFO L226 Difference]: Without dead ends: 3109 [2023-11-06 22:19:21,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:19:21,768 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 3618 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:21,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 2382 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-06 22:19:21,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2023-11-06 22:19:21,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 1788. [2023-11-06 22:19:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1254 states have (on average 1.8572567783094098) internal successors, (2329), 1752 states have internal predecessors, (2329), 35 states have call successors, (35), 9 states have call predecessors, (35), 7 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-06 22:19:21,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2395 transitions. [2023-11-06 22:19:21,804 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2395 transitions. Word has length 63 [2023-11-06 22:19:21,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:21,805 INFO L495 AbstractCegarLoop]: Abstraction has 1788 states and 2395 transitions. [2023-11-06 22:19:21,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:21,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2395 transitions. [2023-11-06 22:19:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:19:21,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:21,806 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] [2023-11-06 22:19:21,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:19:22,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:22,022 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:22,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash -635872025, now seen corresponding path program 1 times [2023-11-06 22:19:22,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:22,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39130125] [2023-11-06 22:19:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:22,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:22,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:22,024 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:22,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 22:19:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:22,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 22:19:22,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:22,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:19:22,610 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 22:19:22,709 INFO L322 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-06 22:19:22,710 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-11-06 22:19:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:23,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:23,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:23,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39130125] [2023-11-06 22:19:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39130125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:23,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:23,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:19:23,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581908218] [2023-11-06 22:19:23,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:23,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:19:23,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:23,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:19:23,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:19:23,609 INFO L87 Difference]: Start difference. First operand 1788 states and 2395 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:29,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:29,443 INFO L93 Difference]: Finished difference Result 1794 states and 2402 transitions. [2023-11-06 22:19:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:19:29,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-06 22:19:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:29,450 INFO L225 Difference]: With dead ends: 1794 [2023-11-06 22:19:29,450 INFO L226 Difference]: Without dead ends: 1794 [2023-11-06 22:19:29,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:19:29,451 INFO L413 NwaCegarLoop]: 1137 mSDtfsCounter, 113 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:29,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 2729 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-06 22:19:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2023-11-06 22:19:29,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1793. [2023-11-06 22:19:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1258 states have (on average 1.854531001589825) internal successors, (2333), 1756 states have internal predecessors, (2333), 36 states have call successors, (36), 10 states have call predecessors, (36), 7 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-06 22:19:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2401 transitions. [2023-11-06 22:19:29,504 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2401 transitions. Word has length 63 [2023-11-06 22:19:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:29,504 INFO L495 AbstractCegarLoop]: Abstraction has 1793 states and 2401 transitions. [2023-11-06 22:19:29,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2401 transitions. [2023-11-06 22:19:29,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-06 22:19:29,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:29,506 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] [2023-11-06 22:19:29,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:19:29,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:29,722 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:29,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:29,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1248809324, now seen corresponding path program 1 times [2023-11-06 22:19:29,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:29,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080030273] [2023-11-06 22:19:29,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:29,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:29,724 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:29,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-06 22:19:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:30,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:19:30,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:30,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:30,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:30,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:30,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080030273] [2023-11-06 22:19:30,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080030273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:30,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:30,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:19:30,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238988019] [2023-11-06 22:19:30,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:30,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:19:30,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:30,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:19:30,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:19:30,164 INFO L87 Difference]: Start difference. First operand 1793 states and 2401 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:30,311 INFO L93 Difference]: Finished difference Result 1819 states and 2428 transitions. [2023-11-06 22:19:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:19:30,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-11-06 22:19:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:30,317 INFO L225 Difference]: With dead ends: 1819 [2023-11-06 22:19:30,317 INFO L226 Difference]: Without dead ends: 1819 [2023-11-06 22:19:30,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:19:30,318 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 19 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5755 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:30,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5755 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:19:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2023-11-06 22:19:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1817. [2023-11-06 22:19:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1276 states have (on average 1.8463949843260188) internal successors, (2356), 1776 states have internal predecessors, (2356), 38 states have call successors, (38), 14 states have call predecessors, (38), 11 states have return successors, (34), 30 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:19:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2428 transitions. [2023-11-06 22:19:30,360 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2428 transitions. Word has length 71 [2023-11-06 22:19:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:30,361 INFO L495 AbstractCegarLoop]: Abstraction has 1817 states and 2428 transitions. [2023-11-06 22:19:30,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2428 transitions. [2023-11-06 22:19:30,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:19:30,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:30,362 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] [2023-11-06 22:19:30,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:19:30,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:30,586 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:30,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1239215792, now seen corresponding path program 1 times [2023-11-06 22:19:30,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:30,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133433685] [2023-11-06 22:19:30,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:30,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:30,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:30,589 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:30,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:30,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:19:31,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:31,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:31,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:31,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133433685] [2023-11-06 22:19:31,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133433685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:31,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:31,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:19:31,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139743082] [2023-11-06 22:19:31,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:31,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:19:31,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:31,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:19:31,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:19:31,225 INFO L87 Difference]: Start difference. First operand 1817 states and 2428 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:19:31,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:31,582 INFO L93 Difference]: Finished difference Result 1829 states and 2442 transitions. [2023-11-06 22:19:31,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:19:31,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-11-06 22:19:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:31,589 INFO L225 Difference]: With dead ends: 1829 [2023-11-06 22:19:31,589 INFO L226 Difference]: Without dead ends: 1829 [2023-11-06 22:19:31,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:19:31,590 INFO L413 NwaCegarLoop]: 1136 mSDtfsCounter, 22 mSDsluCounter, 4444 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5580 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:31,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5580 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:19:31,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2023-11-06 22:19:31,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1820. [2023-11-06 22:19:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1278 states have (on average 1.8450704225352113) internal successors, (2358), 1778 states have internal predecessors, (2358), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-06 22:19:31,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2431 transitions. [2023-11-06 22:19:31,631 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2431 transitions. Word has length 69 [2023-11-06 22:19:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:31,632 INFO L495 AbstractCegarLoop]: Abstraction has 1820 states and 2431 transitions. [2023-11-06 22:19:31,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:19:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2431 transitions. [2023-11-06 22:19:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:19:31,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:31,633 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 22:19:31,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:31,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:31,857 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:31,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:31,857 INFO L85 PathProgramCache]: Analyzing trace with hash -629537416, now seen corresponding path program 1 times [2023-11-06 22:19:31,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:31,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294338659] [2023-11-06 22:19:31,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:31,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:31,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:31,859 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:31,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:32,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:19:32,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:32,414 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:19:32,602 WARN L861 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |alt_malloc_#res.base| (_ bv1 1)))) is different from true [2023-11-06 22:19:32,625 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:19:32,626 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-06 22:19:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:32,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:32,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:32,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294338659] [2023-11-06 22:19:32,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294338659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:32,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:32,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:19:32,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527857150] [2023-11-06 22:19:32,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:32,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:19:32,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:32,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:19:32,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2023-11-06 22:19:32,643 INFO L87 Difference]: Start difference. First operand 1820 states and 2431 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:19:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:38,432 INFO L93 Difference]: Finished difference Result 3064 states and 4037 transitions. [2023-11-06 22:19:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:19:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2023-11-06 22:19:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:38,441 INFO L225 Difference]: With dead ends: 3064 [2023-11-06 22:19:38,441 INFO L226 Difference]: Without dead ends: 3064 [2023-11-06 22:19:38,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2023-11-06 22:19:38,442 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 1551 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 4863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2230 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:38,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 2964 Invalid, 4863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2608 Invalid, 0 Unknown, 2230 Unchecked, 5.7s Time] [2023-11-06 22:19:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2023-11-06 22:19:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 1819. [2023-11-06 22:19:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1278 states have (on average 1.8435054773082942) internal successors, (2356), 1777 states have internal predecessors, (2356), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-06 22:19:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2429 transitions. [2023-11-06 22:19:38,483 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2429 transitions. Word has length 74 [2023-11-06 22:19:38,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:38,483 INFO L495 AbstractCegarLoop]: Abstraction has 1819 states and 2429 transitions. [2023-11-06 22:19:38,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:19:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2429 transitions. [2023-11-06 22:19:38,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:19:38,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:38,485 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 22:19:38,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:38,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:38,700 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:38,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash -629537415, now seen corresponding path program 1 times [2023-11-06 22:19:38,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:38,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581959440] [2023-11-06 22:19:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:38,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:38,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:38,703 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:38,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:39,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:19:39,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:39,236 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:19:39,243 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:19:39,957 WARN L861 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2023-11-06 22:19:39,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:19:39,992 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 22:19:40,006 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:19:40,007 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 22:19:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:40,023 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:40,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:40,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581959440] [2023-11-06 22:19:40,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581959440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:40,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:40,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:19:40,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404211892] [2023-11-06 22:19:40,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:40,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:19:40,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:19:40,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2023-11-06 22:19:40,026 INFO L87 Difference]: Start difference. First operand 1819 states and 2429 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:19:50,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:50,300 INFO L93 Difference]: Finished difference Result 3115 states and 4117 transitions. [2023-11-06 22:19:50,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:19:50,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2023-11-06 22:19:50,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:50,308 INFO L225 Difference]: With dead ends: 3115 [2023-11-06 22:19:50,308 INFO L226 Difference]: Without dead ends: 3115 [2023-11-06 22:19:50,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2023-11-06 22:19:50,309 INFO L413 NwaCegarLoop]: 1270 mSDtfsCounter, 1676 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 6887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2220 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:50,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 3241 Invalid, 6887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 4638 Invalid, 0 Unknown, 2220 Unchecked, 10.1s Time] [2023-11-06 22:19:50,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2023-11-06 22:19:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 1815. [2023-11-06 22:19:50,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1282 states have (on average 1.828393135725429) internal successors, (2344), 1773 states have internal predecessors, (2344), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-06 22:19:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2417 transitions. [2023-11-06 22:19:50,354 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2417 transitions. Word has length 74 [2023-11-06 22:19:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:50,354 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2417 transitions. [2023-11-06 22:19:50,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:19:50,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2417 transitions. [2023-11-06 22:19:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-06 22:19:50,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:50,356 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, 1, 1, 1, 1, 1, 1] [2023-11-06 22:19:50,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:19:50,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:50,573 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:50,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1241397759, now seen corresponding path program 1 times [2023-11-06 22:19:50,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:50,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913721011] [2023-11-06 22:19:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:50,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:50,576 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:50,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:50,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:19:50,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:51,001 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:19:51,032 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 22:19:51,086 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 22:19:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:51,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:51,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:51,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913721011] [2023-11-06 22:19:51,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913721011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:51,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:51,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:19:51,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477925915] [2023-11-06 22:19:51,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:51,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:19:51,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:51,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:19:51,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:19:51,142 INFO L87 Difference]: Start difference. First operand 1815 states and 2417 transitions. Second operand has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:19:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:57,597 INFO L93 Difference]: Finished difference Result 1830 states and 2433 transitions. [2023-11-06 22:19:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:19:57,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2023-11-06 22:19:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:57,604 INFO L225 Difference]: With dead ends: 1830 [2023-11-06 22:19:57,604 INFO L226 Difference]: Without dead ends: 1830 [2023-11-06 22:19:57,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:19:57,605 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 19 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 3162 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4864 SdHoareTripleChecker+Invalid, 3164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:57,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4864 Invalid, 3164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3162 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-06 22:19:57,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2023-11-06 22:19:57,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1829. [2023-11-06 22:19:57,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1294 states have (on average 1.8238021638330757) internal successors, (2360), 1785 states have internal predecessors, (2360), 38 states have call successors, (38), 16 states have call predecessors, (38), 14 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-06 22:19:57,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2433 transitions. [2023-11-06 22:19:57,653 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2433 transitions. Word has length 81 [2023-11-06 22:19:57,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:57,653 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 2433 transitions. [2023-11-06 22:19:57,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:19:57,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2433 transitions. [2023-11-06 22:19:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-06 22:19:57,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:57,655 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:19:57,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:57,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:57,873 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:19:57,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:57,874 INFO L85 PathProgramCache]: Analyzing trace with hash 171375211, now seen corresponding path program 1 times [2023-11-06 22:19:57,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:19:57,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502461842] [2023-11-06 22:19:57,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:57,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:19:57,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:19:57,876 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:19:57,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:19:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:58,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:19:58,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:19:58,382 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:19:58,439 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 22:19:58,445 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 22:19:58,526 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 22:19:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:58,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:19:58,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:19:58,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502461842] [2023-11-06 22:19:58,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502461842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:58,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:58,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:19:58,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409837750] [2023-11-06 22:19:58,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:58,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:19:58,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:19:58,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:19:58,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:19:58,657 INFO L87 Difference]: Start difference. First operand 1829 states and 2433 transitions. Second operand has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:20:07,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:07,072 INFO L93 Difference]: Finished difference Result 1829 states and 2431 transitions. [2023-11-06 22:20:07,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:20:07,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 82 [2023-11-06 22:20:07,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:07,077 INFO L225 Difference]: With dead ends: 1829 [2023-11-06 22:20:07,077 INFO L226 Difference]: Without dead ends: 1829 [2023-11-06 22:20:07,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:20:07,078 INFO L413 NwaCegarLoop]: 1134 mSDtfsCounter, 17 mSDsluCounter, 4711 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5845 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:07,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5845 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3325 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-06 22:20:07,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2023-11-06 22:20:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1829. [2023-11-06 22:20:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1294 states have (on average 1.82225656877898) internal successors, (2358), 1785 states have internal predecessors, (2358), 38 states have call successors, (38), 16 states have call predecessors, (38), 14 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-06 22:20:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2431 transitions. [2023-11-06 22:20:07,109 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2431 transitions. Word has length 82 [2023-11-06 22:20:07,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:07,109 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 2431 transitions. [2023-11-06 22:20:07,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:20:07,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2431 transitions. [2023-11-06 22:20:07,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:20:07,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:07,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:07,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:20:07,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:07,326 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:20:07,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash 123907486, now seen corresponding path program 1 times [2023-11-06 22:20:07,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:07,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783190064] [2023-11-06 22:20:07,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:07,327 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:07,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:07,329 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:20:07,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:20:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:07,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:20:07,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:07,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:07,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:20:07,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:20:07,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783190064] [2023-11-06 22:20:07,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783190064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:07,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:07,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:20:07,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912416738] [2023-11-06 22:20:07,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:07,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:20:07,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:20:07,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:20:07,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:20:07,815 INFO L87 Difference]: Start difference. First operand 1829 states and 2431 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 22:20:07,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:07,918 INFO L93 Difference]: Finished difference Result 1845 states and 2449 transitions. [2023-11-06 22:20:07,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:20:07,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2023-11-06 22:20:07,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:07,923 INFO L225 Difference]: With dead ends: 1845 [2023-11-06 22:20:07,923 INFO L226 Difference]: Without dead ends: 1839 [2023-11-06 22:20:07,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:20:07,925 INFO L413 NwaCegarLoop]: 1144 mSDtfsCounter, 6 mSDsluCounter, 3416 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4560 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:07,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4560 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:20:07,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2023-11-06 22:20:07,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1839. [2023-11-06 22:20:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1302 states have (on average 1.8187403993855606) internal successors, (2368), 1795 states have internal predecessors, (2368), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-06 22:20:07,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2443 transitions. [2023-11-06 22:20:07,958 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2443 transitions. Word has length 89 [2023-11-06 22:20:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:07,958 INFO L495 AbstractCegarLoop]: Abstraction has 1839 states and 2443 transitions. [2023-11-06 22:20:07,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 22:20:07,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2443 transitions. [2023-11-06 22:20:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-06 22:20:07,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:07,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:07,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:20:08,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:08,169 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:20:08,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:08,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1090423684, now seen corresponding path program 1 times [2023-11-06 22:20:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:08,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672084752] [2023-11-06 22:20:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:08,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:08,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:08,172 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:20:08,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 (24)] Waiting until timeout for monitored process [2023-11-06 22:20:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:08,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:20:08,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:08,770 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 22:20:08,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:20:08,949 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 22:20:08,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:20:08,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672084752] [2023-11-06 22:20:08,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672084752] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:20:08,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:20:08,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-06 22:20:08,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068797698] [2023-11-06 22:20:08,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:20:08,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:20:08,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:20:08,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:20:08,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:20:08,953 INFO L87 Difference]: Start difference. First operand 1839 states and 2443 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:09,361 INFO L93 Difference]: Finished difference Result 1865 states and 2473 transitions. [2023-11-06 22:20:09,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:20:09,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2023-11-06 22:20:09,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:09,368 INFO L225 Difference]: With dead ends: 1865 [2023-11-06 22:20:09,369 INFO L226 Difference]: Without dead ends: 1853 [2023-11-06 22:20:09,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:20:09,370 INFO L413 NwaCegarLoop]: 1145 mSDtfsCounter, 33 mSDsluCounter, 3421 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:09,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4566 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:20:09,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2023-11-06 22:20:09,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1847. [2023-11-06 22:20:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1310 states have (on average 1.8152671755725192) internal successors, (2378), 1803 states have internal predecessors, (2378), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-06 22:20:09,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2453 transitions. [2023-11-06 22:20:09,408 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2453 transitions. Word has length 90 [2023-11-06 22:20:09,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:09,409 INFO L495 AbstractCegarLoop]: Abstraction has 1847 states and 2453 transitions. [2023-11-06 22:20:09,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:09,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2453 transitions. [2023-11-06 22:20:09,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-06 22:20:09,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:09,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:09,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:20:09,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:09,625 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:20:09,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:09,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2120087326, now seen corresponding path program 2 times [2023-11-06 22:20:09,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:09,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683944491] [2023-11-06 22:20:09,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:20:09,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:09,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:09,627 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:20:09,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 22:20:10,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:20:10,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:20:10,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:20:10,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:10,685 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 22:20:10,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:20:11,128 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 22:20:11,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:20:11,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683944491] [2023-11-06 22:20:11,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683944491] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:20:11,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:20:11,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-06 22:20:11,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678111065] [2023-11-06 22:20:11,130 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:20:11,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:20:11,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:20:11,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:20:11,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:20:11,132 INFO L87 Difference]: Start difference. First operand 1847 states and 2453 transitions. Second operand has 16 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:12,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:12,102 INFO L93 Difference]: Finished difference Result 1889 states and 2509 transitions. [2023-11-06 22:20:12,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-06 22:20:12,103 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 93 [2023-11-06 22:20:12,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:12,107 INFO L225 Difference]: With dead ends: 1889 [2023-11-06 22:20:12,107 INFO L226 Difference]: Without dead ends: 1877 [2023-11-06 22:20:12,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=343, Invalid=649, Unknown=0, NotChecked=0, Total=992 [2023-11-06 22:20:12,108 INFO L413 NwaCegarLoop]: 1148 mSDtfsCounter, 54 mSDsluCounter, 6843 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:12,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 7991 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:20:12,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2023-11-06 22:20:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1865. [2023-11-06 22:20:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1328 states have (on average 1.8087349397590362) internal successors, (2402), 1821 states have internal predecessors, (2402), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-06 22:20:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 2477 transitions. [2023-11-06 22:20:12,140 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 2477 transitions. Word has length 93 [2023-11-06 22:20:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:12,140 INFO L495 AbstractCegarLoop]: Abstraction has 1865 states and 2477 transitions. [2023-11-06 22:20:12,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.0625) internal successors, (97), 16 states have internal predecessors, (97), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:12,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2477 transitions. [2023-11-06 22:20:12,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-06 22:20:12,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:12,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:12,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:20:12,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:12,358 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:20:12,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash 149650782, now seen corresponding path program 3 times [2023-11-06 22:20:12,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:12,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879225961] [2023-11-06 22:20:12,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:20:12,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:12,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:12,360 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:20:12,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 (26)] Waiting until timeout for monitored process [2023-11-06 22:20:13,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:20:13,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:20:13,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:20:13,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:13,836 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 22:20:13,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:20:15,100 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 22:20:15,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:20:15,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879225961] [2023-11-06 22:20:15,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879225961] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:20:15,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:20:15,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-11-06 22:20:15,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306624133] [2023-11-06 22:20:15,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:20:15,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-06 22:20:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:20:15,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-06 22:20:15,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-11-06 22:20:15,103 INFO L87 Difference]: Start difference. First operand 1865 states and 2477 transitions. Second operand has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 28 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:19,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:19,100 INFO L93 Difference]: Finished difference Result 1937 states and 2579 transitions. [2023-11-06 22:20:19,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-06 22:20:19,101 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 28 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 99 [2023-11-06 22:20:19,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:19,108 INFO L225 Difference]: With dead ends: 1937 [2023-11-06 22:20:19,108 INFO L226 Difference]: Without dead ends: 1919 [2023-11-06 22:20:19,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=924, Invalid=1832, Unknown=0, NotChecked=0, Total=2756 [2023-11-06 22:20:19,110 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 116 mSDsluCounter, 17098 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 18252 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:19,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 18252 Invalid, 741 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 22:20:19,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-11-06 22:20:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1901. [2023-11-06 22:20:19,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1364 states have (on average 1.7947214076246334) internal successors, (2448), 1857 states have internal predecessors, (2448), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-06 22:20:19,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2523 transitions. [2023-11-06 22:20:19,143 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2523 transitions. Word has length 99 [2023-11-06 22:20:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:19,144 INFO L495 AbstractCegarLoop]: Abstraction has 1901 states and 2523 transitions. [2023-11-06 22:20:19,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 28 states have internal predecessors, (109), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:19,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2523 transitions. [2023-11-06 22:20:19,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:20:19,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:19,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:19,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:20:19,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:19,367 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:20:19,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:19,368 INFO L85 PathProgramCache]: Analyzing trace with hash -947815970, now seen corresponding path program 4 times [2023-11-06 22:20:19,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320191677] [2023-11-06 22:20:19,368 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:20:19,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:19,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:19,370 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:20:19,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 (27)] Waiting until timeout for monitored process [2023-11-06 22:20:19,925 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:20:19,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:20:19,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-06 22:20:19,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:20,803 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 22:20:20,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:20:23,718 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 22:20:23,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:20:23,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320191677] [2023-11-06 22:20:23,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320191677] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:20:23,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:20:23,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-06 22:20:23,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456559116] [2023-11-06 22:20:23,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:20:23,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-06 22:20:23,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:20:23,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-06 22:20:23,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=725, Invalid=1927, Unknown=0, NotChecked=0, Total=2652 [2023-11-06 22:20:23,722 INFO L87 Difference]: Start difference. First operand 1901 states and 2523 transitions. Second operand has 52 states, 52 states have (on average 2.5576923076923075) internal successors, (133), 52 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:20:37,816 INFO L93 Difference]: Finished difference Result 2027 states and 2713 transitions. [2023-11-06 22:20:37,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-11-06 22:20:37,817 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.5576923076923075) internal successors, (133), 52 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 111 [2023-11-06 22:20:37,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:20:37,821 INFO L225 Difference]: With dead ends: 2027 [2023-11-06 22:20:37,821 INFO L226 Difference]: Without dead ends: 2015 [2023-11-06 22:20:37,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=4121, Invalid=9921, Unknown=0, NotChecked=0, Total=14042 [2023-11-06 22:20:37,827 INFO L413 NwaCegarLoop]: 1165 mSDtfsCounter, 191 mSDsluCounter, 27359 mSDsCounter, 0 mSdLazyCounter, 2413 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 28524 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:20:37,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 28524 Invalid, 2473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 2413 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-06 22:20:37,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-11-06 22:20:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1969. [2023-11-06 22:20:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1432 states have (on average 1.7737430167597765) internal successors, (2540), 1925 states have internal predecessors, (2540), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-06 22:20:37,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2615 transitions. [2023-11-06 22:20:37,858 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2615 transitions. Word has length 111 [2023-11-06 22:20:37,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:20:37,858 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2615 transitions. [2023-11-06 22:20:37,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.5576923076923075) internal successors, (133), 52 states have internal predecessors, (133), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 22:20:37,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2615 transitions. [2023-11-06 22:20:37,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-06 22:20:37,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:20:37,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:37,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:20:38,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:38,097 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-06 22:20:38,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1884973538, now seen corresponding path program 5 times [2023-11-06 22:20:38,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:20:38,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040565146] [2023-11-06 22:20:38,098 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:20:38,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:20:38,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:20:38,099 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:20:38,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/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 (28)] Waiting until timeout for monitored process [2023-11-06 22:20:39,797 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 22:20:39,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:20:39,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-06 22:20:39,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:39,855 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:20:40,100 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:20:40,100 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 22:20:40,158 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 22:20:40,320 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 22:20:41,931 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:20:41,931 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 22:20:41,991 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 22:20:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-06 22:20:42,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:20:42,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:20:42,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040565146] [2023-11-06 22:20:42,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040565146] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:20:42,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [98175746] [2023-11-06 22:20:42,720 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:20:42,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:20:42,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:20:42,722 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:20:42,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3532c1c-9671-4728-a2a8-8e3e94dcfff0/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process