./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:26:26,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:26:26,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:26:26,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:26:26,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:26:26,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:26:26,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:26:26,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:26:26,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:26:26,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:26:26,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:26:26,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:26:26,408 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:26:26,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:26:26,410 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:26:26,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:26:26,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:26:26,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:26:26,412 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:26:26,413 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:26:26,414 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:26:26,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:26:26,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:26:26,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:26:26,416 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:26:26,417 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:26:26,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:26:26,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:26:26,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:26:26,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:26:26,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:26:26,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:26:26,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:26:26,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:26:26,423 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:26:26,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:26:26,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:26:26,425 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:26:26,425 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_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2023-11-06 22:26:26,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:26:26,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:26:26,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:26:26,862 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:26:26,863 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:26:26,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-06 22:26:30,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:26:30,423 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:26:30,424 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-06 22:26:30,465 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data/2fa9e0c29/4d136943f2514c7ab67ec180b1b8f6d4/FLAG0158b8216 [2023-11-06 22:26:30,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data/2fa9e0c29/4d136943f2514c7ab67ec180b1b8f6d4 [2023-11-06 22:26:30,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:26:30,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:26:30,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:26:30,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:26:30,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:26:30,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:30" (1/1) ... [2023-11-06 22:26:30,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594624ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:30, skipping insertion in model container [2023-11-06 22:26:30,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:30" (1/1) ... [2023-11-06 22:26:30,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:26:31,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:26:31,448 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 22:26:31,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61c9a93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:31, skipping insertion in model container [2023-11-06 22:26:31,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:26:31,450 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:26:31,452 INFO L158 Benchmark]: Toolchain (without parser) took 953.73ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 50.1MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:26:31,452 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:26:31,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 950.40ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 50.1MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:26:31,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 950.40ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 50.1MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:26:34,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:26:34,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 22:26:34,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:26:34,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:26:34,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:26:34,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:26:34,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:26:34,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:26:34,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:26:34,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:26:34,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:26:34,301 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:26:34,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:26:34,303 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:26:34,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:26:34,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:26:34,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:26:34,304 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:26:34,305 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:26:34,305 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:26:34,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:26:34,306 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:26:34,307 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:26:34,307 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:26:34,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:26:34,308 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:26:34,309 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:26:34,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:26:34,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:26:34,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:26:34,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:26:34,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:26:34,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:26:34,313 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:26:34,313 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:26:34,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:26:34,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:26:34,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:26:34,315 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:26:34,316 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:26:34,316 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_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2023-11-06 22:26:34,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:26:34,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:26:34,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:26:34,754 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:26:34,755 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:26:34,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-06 22:26:37,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:26:38,336 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:26:38,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-11-06 22:26:38,368 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data/cbcdaddde/cf726065a6fd4ed08122253c056dd9bf/FLAG9817cfa69 [2023-11-06 22:26:38,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/data/cbcdaddde/cf726065a6fd4ed08122253c056dd9bf [2023-11-06 22:26:38,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:26:38,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:26:38,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:26:38,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:26:38,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:26:38,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:38" (1/1) ... [2023-11-06 22:26:38,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cbc6cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38, skipping insertion in model container [2023-11-06 22:26:38,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:38" (1/1) ... [2023-11-06 22:26:38,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:26:39,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:26:39,330 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:26:39,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:26:39,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:26:39,555 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:26:39,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:26:39,748 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:26:39,756 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:26:39,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39 WrapperNode [2023-11-06 22:26:39,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:26:39,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:26:39,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:26:39,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:26:39,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:39,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:39,926 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1048 [2023-11-06 22:26:39,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:26:39,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:26:39,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:26:39,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:26:39,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:39,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:39,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:39,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:40,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:40,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:40,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:40,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:40,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:26:40,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:26:40,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:26:40,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:26:40,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (1/1) ... [2023-11-06 22:26:40,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:26:40,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:26:40,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:26:40,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:26:40,188 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:26:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:26:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:26:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:26:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:26:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 22:26:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:26:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:26:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:26:40,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:26:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-06 22:26:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-06 22:26:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:26:40,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:26:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:26:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:26:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-06 22:26:40,193 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-06 22:26:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:26:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-06 22:26:40,194 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-06 22:26:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:26:40,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:26:40,493 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:26:40,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:26:45,772 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:26:45,788 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:26:45,788 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-06 22:26:45,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:45 BoogieIcfgContainer [2023-11-06 22:26:45,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:26:45,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:26:45,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:26:45,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:26:45,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:38" (1/3) ... [2023-11-06 22:26:45,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4b61a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:45, skipping insertion in model container [2023-11-06 22:26:45,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:39" (2/3) ... [2023-11-06 22:26:45,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4b61a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:45, skipping insertion in model container [2023-11-06 22:26:45,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:45" (3/3) ... [2023-11-06 22:26:45,802 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-1.i [2023-11-06 22:26:45,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:26:45,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 528 error locations. [2023-11-06 22:26:45,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:26:45,912 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;@680b8a47, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:26:45,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 528 error locations. [2023-11-06 22:26:45,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 1092 states, 541 states have (on average 2.2070240295748613) internal successors, (1194), 1072 states have internal predecessors, (1194), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:26:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:26:45,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:26:45,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:26:45,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:26:45,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash 85465, now seen corresponding path program 1 times [2023-11-06 22:26:45,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:26:45,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418868078] [2023-11-06 22:26:45,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:45,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:26:45,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:26:45,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:26:45,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:26:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:46,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:26:46,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:26:46,308 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 22:26:46,322 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 22:26:46,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:26:46,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:26:46,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418868078] [2023-11-06 22:26:46,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418868078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:26:46,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:26:46,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:26:46,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632640338] [2023-11-06 22:26:46,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:26:46,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:26:46,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:26:46,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:26:46,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:26:46,387 INFO L87 Difference]: Start difference. First operand has 1092 states, 541 states have (on average 2.2070240295748613) internal successors, (1194), 1072 states have internal predecessors, (1194), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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 22:26:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:26:49,227 INFO L93 Difference]: Finished difference Result 1173 states and 1242 transitions. [2023-11-06 22:26:49,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:26:49,242 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 22:26:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:26:49,276 INFO L225 Difference]: With dead ends: 1173 [2023-11-06 22:26:49,276 INFO L226 Difference]: Without dead ends: 1171 [2023-11-06 22:26:49,277 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 22:26:49,281 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 721 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:26:49,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1055 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-06 22:26:49,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2023-11-06 22:26:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1113. [2023-11-06 22:26:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 577 states have (on average 2.065857885615251) internal successors, (1192), 1095 states have internal predecessors, (1192), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:26:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1222 transitions. [2023-11-06 22:26:49,427 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1222 transitions. Word has length 3 [2023-11-06 22:26:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:26:49,428 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1222 transitions. [2023-11-06 22:26:49,429 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 22:26:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1222 transitions. [2023-11-06 22:26:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:26:49,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:26:49,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:26:49,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:26:49,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:26:49,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:26:49,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 85466, now seen corresponding path program 1 times [2023-11-06 22:26:49,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:26:49,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896440177] [2023-11-06 22:26:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:49,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:26:49,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:26:49,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:26:49,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:26:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:49,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:26:49,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:26:49,801 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 22:26:49,815 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 22:26:49,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:26:49,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:26:49,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896440177] [2023-11-06 22:26:49,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896440177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:26:49,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:26:49,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:26:49,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470355824] [2023-11-06 22:26:49,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:26:49,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:26:49,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:26:49,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:26:49,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:26:49,823 INFO L87 Difference]: Start difference. First operand 1113 states and 1222 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 22:26:53,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:26:53,618 INFO L93 Difference]: Finished difference Result 1510 states and 1655 transitions. [2023-11-06 22:26:53,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:26:53,619 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 22:26:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:26:53,628 INFO L225 Difference]: With dead ends: 1510 [2023-11-06 22:26:53,628 INFO L226 Difference]: Without dead ends: 1510 [2023-11-06 22:26:53,628 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 22:26:53,630 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 421 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:26:53,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1549 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-06 22:26:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2023-11-06 22:26:53,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1322. [2023-11-06 22:26:53,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 785 states have (on average 2.0496815286624206) internal successors, (1609), 1302 states have internal predecessors, (1609), 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 22:26:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1643 transitions. [2023-11-06 22:26:53,674 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1643 transitions. Word has length 3 [2023-11-06 22:26:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:26:53,675 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1643 transitions. [2023-11-06 22:26:53,675 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 22:26:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1643 transitions. [2023-11-06 22:26:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:26:53,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:26:53,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:26:53,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:26:53,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:26:53,887 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:26:53,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:53,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1307350193, now seen corresponding path program 1 times [2023-11-06 22:26:53,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:26:53,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904408150] [2023-11-06 22:26:53,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:53,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:26:53,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:26:53,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:26:53,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:26:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:54,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:26:54,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:26:54,126 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 22:26:54,134 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 22:26:54,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:26:54,236 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 22:26:54,261 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:26:54,261 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 22:26:54,300 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 22:26:54,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:26:54,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:26:54,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904408150] [2023-11-06 22:26:54,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904408150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:26:54,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:26:54,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:26:54,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454147229] [2023-11-06 22:26:54,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:26:54,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:26:54,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:26:54,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:26:54,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:26:54,306 INFO L87 Difference]: Start difference. First operand 1322 states and 1643 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 22:27:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:00,025 INFO L93 Difference]: Finished difference Result 2021 states and 2399 transitions. [2023-11-06 22:27:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:27:00,027 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 22:27:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:00,040 INFO L225 Difference]: With dead ends: 2021 [2023-11-06 22:27:00,040 INFO L226 Difference]: Without dead ends: 2021 [2023-11-06 22:27:00,041 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 22:27:00,042 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 1434 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:00,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 1265 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-06 22:27:00,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2023-11-06 22:27:00,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1471. [2023-11-06 22:27:00,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 934 states have (on average 2.0299785867237685) internal successors, (1896), 1451 states have internal predecessors, (1896), 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 22:27:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1930 transitions. [2023-11-06 22:27:00,095 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1930 transitions. Word has length 8 [2023-11-06 22:27:00,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:00,096 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 1930 transitions. [2023-11-06 22:27:00,096 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 22:27:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1930 transitions. [2023-11-06 22:27:00,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:27:00,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:00,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:00,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-06 22:27:00,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:00,310 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:00,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:00,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150296, now seen corresponding path program 1 times [2023-11-06 22:27:00,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:00,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727011972] [2023-11-06 22:27:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:00,312 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 22:27:00,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:00,313 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:00,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:00,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:27:00,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:00,506 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 22:27:00,543 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 22:27:00,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:00,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:00,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727011972] [2023-11-06 22:27:00,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727011972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:00,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:00,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737015691] [2023-11-06 22:27:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:00,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:27:00,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:00,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:27:00,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:27:00,549 INFO L87 Difference]: Start difference. First operand 1471 states and 1930 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 22:27:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:05,151 INFO L93 Difference]: Finished difference Result 2464 states and 3146 transitions. [2023-11-06 22:27:05,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:27:05,158 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 22:27:05,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:05,174 INFO L225 Difference]: With dead ends: 2464 [2023-11-06 22:27:05,174 INFO L226 Difference]: Without dead ends: 2464 [2023-11-06 22:27:05,175 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 22:27:05,176 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 2161 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:05,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 2004 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-06 22:27:05,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2023-11-06 22:27:05,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1426. [2023-11-06 22:27:05,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 934 states have (on average 1.9668094218415417) internal successors, (1837), 1406 states have internal predecessors, (1837), 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 22:27:05,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1871 transitions. [2023-11-06 22:27:05,234 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1871 transitions. Word has length 9 [2023-11-06 22:27:05,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:05,234 INFO L495 AbstractCegarLoop]: Abstraction has 1426 states and 1871 transitions. [2023-11-06 22:27:05,235 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 22:27:05,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1871 transitions. [2023-11-06 22:27:05,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:27:05,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:05,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:05,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:05,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:05,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:05,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:05,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150295, now seen corresponding path program 1 times [2023-11-06 22:27:05,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:05,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545445835] [2023-11-06 22:27:05,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:05,450 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 22:27:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:05,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:05,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:05,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:27:05,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:05,666 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 22:27:05,734 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 22:27:05,735 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:05,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:05,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545445835] [2023-11-06 22:27:05,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545445835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:05,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:05,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123546364] [2023-11-06 22:27:05,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:05,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:27:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:05,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:27:05,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:27:05,752 INFO L87 Difference]: Start difference. First operand 1426 states and 1871 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 22:27:10,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:10,901 INFO L93 Difference]: Finished difference Result 2073 states and 2716 transitions. [2023-11-06 22:27:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:27:10,902 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 22:27:10,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:10,915 INFO L225 Difference]: With dead ends: 2073 [2023-11-06 22:27:10,915 INFO L226 Difference]: Without dead ends: 2073 [2023-11-06 22:27:10,916 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 22:27:10,920 INFO L413 NwaCegarLoop]: 1207 mSDtfsCounter, 1390 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:10,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 2125 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-06 22:27:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2023-11-06 22:27:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1416. [2023-11-06 22:27:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 934 states have (on average 1.9411134903640257) internal successors, (1813), 1396 states have internal predecessors, (1813), 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 22:27:10,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1847 transitions. [2023-11-06 22:27:10,972 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1847 transitions. Word has length 9 [2023-11-06 22:27:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:10,973 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 1847 transitions. [2023-11-06 22:27:10,973 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 22:27:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1847 transitions. [2023-11-06 22:27:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:27:10,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:10,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:10,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-06 22:27:11,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:11,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:11,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:11,189 INFO L85 PathProgramCache]: Analyzing trace with hash 910543524, now seen corresponding path program 1 times [2023-11-06 22:27:11,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:11,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075703843] [2023-11-06 22:27:11,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:11,189 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 22:27:11,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:11,191 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:11,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:11,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:27:11,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:11,454 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 22:27:11,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:11,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:11,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075703843] [2023-11-06 22:27:11,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075703843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:11,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:11,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:11,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854572527] [2023-11-06 22:27:11,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:11,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:27:11,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:11,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:27:11,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:27:11,458 INFO L87 Difference]: Start difference. First operand 1416 states and 1847 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 22:27:12,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:12,494 INFO L93 Difference]: Finished difference Result 1896 states and 2419 transitions. [2023-11-06 22:27:12,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:27:12,495 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 22:27:12,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:12,507 INFO L225 Difference]: With dead ends: 1896 [2023-11-06 22:27:12,508 INFO L226 Difference]: Without dead ends: 1896 [2023-11-06 22:27:12,508 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 22:27:12,509 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 550 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:12,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 3146 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:27:12,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2023-11-06 22:27:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1672. [2023-11-06 22:27:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1190 states have (on average 1.9546218487394957) internal successors, (2326), 1652 states have internal predecessors, (2326), 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 22:27:12,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2360 transitions. [2023-11-06 22:27:12,561 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2360 transitions. Word has length 13 [2023-11-06 22:27:12,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:12,561 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 2360 transitions. [2023-11-06 22:27:12,561 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 22:27:12,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2360 transitions. [2023-11-06 22:27:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:27:12,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:12,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:12,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:12,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:12,782 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr332REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:12,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:12,782 INFO L85 PathProgramCache]: Analyzing trace with hash 321620140, now seen corresponding path program 1 times [2023-11-06 22:27:12,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:12,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838741104] [2023-11-06 22:27:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:12,783 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 22:27:12,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:12,785 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:12,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:12,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:27:12,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:12,980 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 22:27:12,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:12,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:12,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838741104] [2023-11-06 22:27:12,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838741104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:12,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:12,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:12,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079905641] [2023-11-06 22:27:12,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:12,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:27:12,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:12,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:27:12,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:27:12,984 INFO L87 Difference]: Start difference. First operand 1672 states and 2360 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 22:27:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:13,033 INFO L93 Difference]: Finished difference Result 1576 states and 2188 transitions. [2023-11-06 22:27:13,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:27:13,034 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 22:27:13,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:13,045 INFO L225 Difference]: With dead ends: 1576 [2023-11-06 22:27:13,045 INFO L226 Difference]: Without dead ends: 1576 [2023-11-06 22:27:13,046 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 22:27:13,047 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 81 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1976 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 22:27:13,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1976 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:27:13,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2023-11-06 22:27:13,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2023-11-06 22:27:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1118 states have (on average 1.926654740608229) internal successors, (2154), 1556 states have internal predecessors, (2154), 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 22:27:13,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2188 transitions. [2023-11-06 22:27:13,098 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2188 transitions. Word has length 13 [2023-11-06 22:27:13,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:13,098 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 2188 transitions. [2023-11-06 22:27:13,099 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 22:27:13,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2188 transitions. [2023-11-06 22:27:13,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 22:27:13,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:13,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:13,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:13,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:13,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:13,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1113378045, now seen corresponding path program 1 times [2023-11-06 22:27:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93605756] [2023-11-06 22:27:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:13,316 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 22:27:13,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:13,317 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:13,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:13,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:27:13,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:13,527 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:27:13,528 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:27:13,528 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:27:13,536 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 22:27:13,626 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:27:13,626 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 22:27:13,649 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 22:27:13,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:13,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93605756] [2023-11-06 22:27:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93605756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:13,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073626101] [2023-11-06 22:27:13,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:13,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:27:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:13,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:27:13,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:27:13,653 INFO L87 Difference]: Start difference. First operand 1576 states and 2188 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 22:27:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:15,710 INFO L93 Difference]: Finished difference Result 1570 states and 1930 transitions. [2023-11-06 22:27:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:27:15,713 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 22:27:15,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:15,720 INFO L225 Difference]: With dead ends: 1570 [2023-11-06 22:27:15,720 INFO L226 Difference]: Without dead ends: 1570 [2023-11-06 22:27:15,720 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 22:27:15,721 INFO L413 NwaCegarLoop]: 1017 mSDtfsCounter, 317 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:15,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 2907 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 22:27:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2023-11-06 22:27:15,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1245. [2023-11-06 22:27:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 789 states have (on average 1.9125475285171103) internal successors, (1509), 1227 states have internal predecessors, (1509), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:27:15,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1539 transitions. [2023-11-06 22:27:15,758 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1539 transitions. Word has length 16 [2023-11-06 22:27:15,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:15,759 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1539 transitions. [2023-11-06 22:27:15,759 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 22:27:15,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1539 transitions. [2023-11-06 22:27:15,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:27:15,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:15,760 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 22:27:15,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:15,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:15,974 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:15,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:15,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1057218028, now seen corresponding path program 1 times [2023-11-06 22:27:15,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:15,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987621266] [2023-11-06 22:27:15,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:15,975 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 22:27:15,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:15,976 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:15,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:16,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:27:16,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:16,239 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 22:27:16,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:16,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:16,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987621266] [2023-11-06 22:27:16,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987621266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:16,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:16,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:16,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095836827] [2023-11-06 22:27:16,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:16,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:27:16,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:16,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:27:16,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:27:16,243 INFO L87 Difference]: Start difference. First operand 1245 states and 1539 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 22:27:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:16,298 INFO L93 Difference]: Finished difference Result 1185 states and 1453 transitions. [2023-11-06 22:27:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:27:16,298 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 22:27:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:16,307 INFO L225 Difference]: With dead ends: 1185 [2023-11-06 22:27:16,307 INFO L226 Difference]: Without dead ends: 1185 [2023-11-06 22:27:16,307 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 22:27:16,311 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 81 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1890 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 22:27:16,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1890 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:27:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2023-11-06 22:27:16,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2023-11-06 22:27:16,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 753 states have (on average 1.8897742363877823) internal successors, (1423), 1167 states have internal predecessors, (1423), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:27:16,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1453 transitions. [2023-11-06 22:27:16,344 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1453 transitions. Word has length 19 [2023-11-06 22:27:16,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:16,344 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1453 transitions. [2023-11-06 22:27:16,344 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 22:27:16,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1453 transitions. [2023-11-06 22:27:16,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 22:27:16,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:16,346 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 22:27:16,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:16,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:16,560 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:16,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:16,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722190, now seen corresponding path program 1 times [2023-11-06 22:27:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742807905] [2023-11-06 22:27:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:16,561 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 22:27:16,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:16,563 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:16,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:16,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:27:16,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:16,832 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 22:27:16,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:16,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:16,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742807905] [2023-11-06 22:27:16,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742807905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:16,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:16,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:16,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024626241] [2023-11-06 22:27:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:16,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:27:16,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:16,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:27:16,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:27:16,836 INFO L87 Difference]: Start difference. First operand 1185 states and 1453 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 22:27:16,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:16,937 INFO L93 Difference]: Finished difference Result 1157 states and 1397 transitions. [2023-11-06 22:27:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:27:16,938 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 22:27:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:16,945 INFO L225 Difference]: With dead ends: 1157 [2023-11-06 22:27:16,945 INFO L226 Difference]: Without dead ends: 1157 [2023-11-06 22:27:16,946 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 22:27:16,947 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 62 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2774 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 22:27:16,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2774 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:27:16,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2023-11-06 22:27:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1155. [2023-11-06 22:27:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 737 states have (on average 1.852103120759837) internal successors, (1365), 1137 states have internal predecessors, (1365), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:27:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1395 transitions. [2023-11-06 22:27:16,977 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1395 transitions. Word has length 21 [2023-11-06 22:27:16,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:16,977 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1395 transitions. [2023-11-06 22:27:16,977 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 22:27:16,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1395 transitions. [2023-11-06 22:27:16,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:27:16,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:16,979 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 22:27:16,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:17,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:17,193 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:17,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:17,193 INFO L85 PathProgramCache]: Analyzing trace with hash -956254243, now seen corresponding path program 1 times [2023-11-06 22:27:17,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:17,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150456523] [2023-11-06 22:27:17,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:17,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:27:17,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:17,195 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:17,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:17,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:27:17,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:17,424 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 22:27:17,711 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 22:27:17,711 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:17,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:17,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150456523] [2023-11-06 22:27:17,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150456523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:17,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:17,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:17,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056611094] [2023-11-06 22:27:17,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:17,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:27:17,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:27:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:27:17,714 INFO L87 Difference]: Start difference. First operand 1155 states and 1395 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 22:27:23,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:23,570 INFO L93 Difference]: Finished difference Result 1698 states and 2067 transitions. [2023-11-06 22:27:23,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:27:23,570 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 22:27:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:23,578 INFO L225 Difference]: With dead ends: 1698 [2023-11-06 22:27:23,578 INFO L226 Difference]: Without dead ends: 1698 [2023-11-06 22:27:23,578 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 22:27:23,579 INFO L413 NwaCegarLoop]: 1178 mSDtfsCounter, 1157 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:23,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 2775 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-06 22:27:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2023-11-06 22:27:23,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1151. [2023-11-06 22:27:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 737 states have (on average 1.841248303934871) internal successors, (1357), 1133 states have internal predecessors, (1357), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:27:23,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1387 transitions. [2023-11-06 22:27:23,609 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1387 transitions. Word has length 35 [2023-11-06 22:27:23,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:23,609 INFO L495 AbstractCegarLoop]: Abstraction has 1151 states and 1387 transitions. [2023-11-06 22:27:23,609 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 22:27:23,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1387 transitions. [2023-11-06 22:27:23,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:27:23,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:23,611 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 22:27:23,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:23,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:23,825 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:23,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:23,826 INFO L85 PathProgramCache]: Analyzing trace with hash -956254244, now seen corresponding path program 1 times [2023-11-06 22:27:23,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:23,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107859902] [2023-11-06 22:27:23,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:23,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:27:23,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:23,828 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:23,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:24,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:27:24,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:24,110 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 22:27:24,222 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 22:27:24,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:24,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:24,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107859902] [2023-11-06 22:27:24,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107859902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:24,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:24,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:24,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724425213] [2023-11-06 22:27:24,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:24,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:27:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:24,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:27:24,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:27:24,225 INFO L87 Difference]: Start difference. First operand 1151 states and 1387 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 22:27:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:28,766 INFO L93 Difference]: Finished difference Result 2052 states and 2506 transitions. [2023-11-06 22:27:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:27:28,768 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 22:27:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:28,790 INFO L225 Difference]: With dead ends: 2052 [2023-11-06 22:27:28,790 INFO L226 Difference]: Without dead ends: 2052 [2023-11-06 22:27:28,790 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 22:27:28,791 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 1397 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:28,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2236 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-06 22:27:28,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2023-11-06 22:27:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1147. [2023-11-06 22:27:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 737 states have (on average 1.830393487109905) internal successors, (1349), 1129 states have internal predecessors, (1349), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:27:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1379 transitions. [2023-11-06 22:27:28,816 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1379 transitions. Word has length 35 [2023-11-06 22:27:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:28,817 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1379 transitions. [2023-11-06 22:27:28,817 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 22:27:28,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1379 transitions. [2023-11-06 22:27:28,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:27:28,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:28,819 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 22:27:28,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:27:29,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:29,033 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:29,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:29,034 INFO L85 PathProgramCache]: Analyzing trace with hash 103696433, now seen corresponding path program 1 times [2023-11-06 22:27:29,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:29,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651465461] [2023-11-06 22:27:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:29,035 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 22:27:29,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:29,036 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:29,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:29,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:27:29,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:29,393 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 22:27:29,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:29,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:29,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651465461] [2023-11-06 22:27:29,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651465461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:29,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:29,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:29,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848728957] [2023-11-06 22:27:29,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:29,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:27:29,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:29,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:27:29,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:27:29,398 INFO L87 Difference]: Start difference. First operand 1147 states and 1379 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 22:27:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:29,458 INFO L93 Difference]: Finished difference Result 1135 states and 1359 transitions. [2023-11-06 22:27:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:27:29,458 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 22:27:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:29,463 INFO L225 Difference]: With dead ends: 1135 [2023-11-06 22:27:29,463 INFO L226 Difference]: Without dead ends: 1135 [2023-11-06 22:27:29,463 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 22:27:29,464 INFO L413 NwaCegarLoop]: 930 mSDtfsCounter, 31 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2752 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 22:27:29,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2752 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:27:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-11-06 22:27:29,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1135. [2023-11-06 22:27:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 725 states have (on average 1.8331034482758621) internal successors, (1329), 1117 states have internal predecessors, (1329), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:27:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1359 transitions. [2023-11-06 22:27:29,486 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1359 transitions. Word has length 55 [2023-11-06 22:27:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:29,486 INFO L495 AbstractCegarLoop]: Abstraction has 1135 states and 1359 transitions. [2023-11-06 22:27:29,487 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 22:27:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1359 transitions. [2023-11-06 22:27:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:27:29,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:29,488 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 22:27:29,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Ended with exit code 0 [2023-11-06 22:27:29,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:29,703 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:29,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:29,704 INFO L85 PathProgramCache]: Analyzing trace with hash -636157443, now seen corresponding path program 1 times [2023-11-06 22:27:29,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:29,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928965501] [2023-11-06 22:27:29,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:29,706 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 22:27:29,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:29,708 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:29,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:30,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:27:30,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:30,234 INFO L322 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2023-11-06 22:27:30,235 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 22:27:30,313 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-06 22:27:30,313 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 22:27:30,847 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 22:27:30,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:30,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:30,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928965501] [2023-11-06 22:27:30,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928965501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:30,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:30,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:30,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263304284] [2023-11-06 22:27:30,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:30,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:30,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:30,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:30,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:27:30,850 INFO L87 Difference]: Start difference. First operand 1135 states and 1359 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 22:27:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:35,179 INFO L93 Difference]: Finished difference Result 2531 states and 3036 transitions. [2023-11-06 22:27:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:27:35,179 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 22:27:35,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:35,193 INFO L225 Difference]: With dead ends: 2531 [2023-11-06 22:27:35,193 INFO L226 Difference]: Without dead ends: 2531 [2023-11-06 22:27:35,193 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 22:27:35,193 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 2801 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2801 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:35,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2801 Valid, 1867 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-06 22:27:35,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2023-11-06 22:27:35,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 1564. [2023-11-06 22:27:35,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1139 states have (on average 1.8279192273924496) internal successors, (2082), 1534 states have internal predecessors, (2082), 29 states have call successors, (29), 9 states have call predecessors, (29), 7 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 22:27:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2136 transitions. [2023-11-06 22:27:35,233 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2136 transitions. Word has length 63 [2023-11-06 22:27:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:35,233 INFO L495 AbstractCegarLoop]: Abstraction has 1564 states and 2136 transitions. [2023-11-06 22:27:35,233 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 22:27:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2136 transitions. [2023-11-06 22:27:35,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:27:35,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:35,235 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 22:27:35,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:35,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:35,450 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:35,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash -636157442, now seen corresponding path program 1 times [2023-11-06 22:27:35,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27907743] [2023-11-06 22:27:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:35,451 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 22:27:35,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:35,453 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:35,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:36,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 22:27:36,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:36,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:27:36,094 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 22:27:36,185 INFO L322 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-06 22:27:36,186 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 22:27:37,171 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 22:27:37,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:37,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:37,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27907743] [2023-11-06 22:27:37,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27907743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:37,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:37,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632471774] [2023-11-06 22:27:37,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:37,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:37,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:37,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:37,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:27:37,173 INFO L87 Difference]: Start difference. First operand 1564 states and 2136 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 22:27:40,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:40,896 INFO L93 Difference]: Finished difference Result 1570 states and 2143 transitions. [2023-11-06 22:27:40,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:27:40,901 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 22:27:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:40,909 INFO L225 Difference]: With dead ends: 1570 [2023-11-06 22:27:40,909 INFO L226 Difference]: Without dead ends: 1570 [2023-11-06 22:27:40,909 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 22:27:40,910 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 113 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:40,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1914 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-06 22:27:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2023-11-06 22:27:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1569. [2023-11-06 22:27:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1143 states have (on average 1.8250218722659668) internal successors, (2086), 1538 states have internal predecessors, (2086), 30 states have call successors, (30), 10 states have call predecessors, (30), 7 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 22:27:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2142 transitions. [2023-11-06 22:27:40,951 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2142 transitions. Word has length 63 [2023-11-06 22:27:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:40,952 INFO L495 AbstractCegarLoop]: Abstraction has 1569 states and 2142 transitions. [2023-11-06 22:27:40,953 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 22:27:40,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2142 transitions. [2023-11-06 22:27:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-06 22:27:40,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:40,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:40,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:41,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:41,173 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:41,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:41,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2123895233, now seen corresponding path program 1 times [2023-11-06 22:27:41,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:41,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143890935] [2023-11-06 22:27:41,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:41,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:27:41,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:41,177 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:41,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:41,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:27:41,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:41,622 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 22:27:41,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:41,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:41,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143890935] [2023-11-06 22:27:41,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143890935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:41,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:41,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:27:41,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995401439] [2023-11-06 22:27:41,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:41,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:41,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:41,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:41,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:27:41,625 INFO L87 Difference]: Start difference. First operand 1569 states and 2142 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 22:27:41,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:41,769 INFO L93 Difference]: Finished difference Result 1595 states and 2169 transitions. [2023-11-06 22:27:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:27:41,772 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 22:27:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:41,780 INFO L225 Difference]: With dead ends: 1595 [2023-11-06 22:27:41,780 INFO L226 Difference]: Without dead ends: 1595 [2023-11-06 22:27:41,781 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 22:27:41,781 INFO L413 NwaCegarLoop]: 940 mSDtfsCounter, 19 mSDsluCounter, 3755 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4695 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 22:27:41,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4695 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:27:41,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2023-11-06 22:27:41,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1593. [2023-11-06 22:27:41,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1593 states, 1161 states have (on average 1.8165374677002584) internal successors, (2109), 1558 states have internal predecessors, (2109), 32 states have call successors, (32), 14 states have call predecessors, (32), 11 states have return successors, (28), 24 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-06 22:27:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2169 transitions. [2023-11-06 22:27:41,822 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2169 transitions. Word has length 71 [2023-11-06 22:27:41,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:41,823 INFO L495 AbstractCegarLoop]: Abstraction has 1593 states and 2169 transitions. [2023-11-06 22:27:41,823 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 22:27:41,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2169 transitions. [2023-11-06 22:27:41,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:27:41,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:41,824 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 22:27:41,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:42,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:42,044 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:42,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:42,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1182270096, now seen corresponding path program 1 times [2023-11-06 22:27:42,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:42,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173559871] [2023-11-06 22:27:42,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:42,045 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 22:27:42,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:42,047 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:42,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:42,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:27:42,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:42,612 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 22:27:42,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:42,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:42,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173559871] [2023-11-06 22:27:42,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173559871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:42,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:42,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:42,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851138233] [2023-11-06 22:27:42,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:42,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:42,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:27:42,615 INFO L87 Difference]: Start difference. First operand 1593 states and 2169 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 22:27:42,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:42,894 INFO L93 Difference]: Finished difference Result 1605 states and 2183 transitions. [2023-11-06 22:27:42,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:27:42,895 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 22:27:42,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:42,901 INFO L225 Difference]: With dead ends: 1605 [2023-11-06 22:27:42,901 INFO L226 Difference]: Without dead ends: 1605 [2023-11-06 22:27:42,902 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 22:27:42,902 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 22 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:42,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3633 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:27:42,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-11-06 22:27:42,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1596. [2023-11-06 22:27:42,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1163 states have (on average 1.815133276010318) internal successors, (2111), 1560 states have internal predecessors, (2111), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-06 22:27:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2172 transitions. [2023-11-06 22:27:42,953 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2172 transitions. Word has length 69 [2023-11-06 22:27:42,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:42,953 INFO L495 AbstractCegarLoop]: Abstraction has 1596 states and 2172 transitions. [2023-11-06 22:27:42,953 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 22:27:42,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2172 transitions. [2023-11-06 22:27:42,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:27:42,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:42,955 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 22:27:42,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:43,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:43,171 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:43,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:43,171 INFO L85 PathProgramCache]: Analyzing trace with hash -565850719, now seen corresponding path program 1 times [2023-11-06 22:27:43,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:43,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314726621] [2023-11-06 22:27:43,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:43,172 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 22:27:43,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:43,174 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:43,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:43,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:27:43,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:43,682 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 22:27:43,879 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 22:27:43,926 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:27:43,926 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 22:27:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:27:43,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:43,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:43,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314726621] [2023-11-06 22:27:43,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314726621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:43,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:43,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:43,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989924937] [2023-11-06 22:27:43,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:43,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:43,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:43,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:43,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2023-11-06 22:27:43,960 INFO L87 Difference]: Start difference. First operand 1596 states and 2172 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 22:27:48,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:48,942 INFO L93 Difference]: Finished difference Result 2636 states and 3544 transitions. [2023-11-06 22:27:48,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:27:48,943 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 22:27:48,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:48,948 INFO L225 Difference]: With dead ends: 2636 [2023-11-06 22:27:48,948 INFO L226 Difference]: Without dead ends: 2636 [2023-11-06 22:27:48,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2023-11-06 22:27:48,949 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 1357 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1821 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:48,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 2142 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1991 Invalid, 0 Unknown, 1821 Unchecked, 4.9s Time] [2023-11-06 22:27:48,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-06 22:27:48,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 1595. [2023-11-06 22:27:48,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1163 states have (on average 1.8134135855546) internal successors, (2109), 1559 states have internal predecessors, (2109), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-06 22:27:48,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2170 transitions. [2023-11-06 22:27:48,988 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2170 transitions. Word has length 74 [2023-11-06 22:27:48,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:48,989 INFO L495 AbstractCegarLoop]: Abstraction has 1595 states and 2170 transitions. [2023-11-06 22:27:48,989 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 22:27:48,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2170 transitions. [2023-11-06 22:27:48,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:27:48,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:48,990 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 22:27:49,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:49,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:49,207 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:49,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash -565850718, now seen corresponding path program 1 times [2023-11-06 22:27:49,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:49,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888643044] [2023-11-06 22:27:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:49,208 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 22:27:49,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:49,209 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:49,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:49,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:27:49,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:49,705 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 22:27:49,712 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 22:27:50,425 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 22:27:50,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:27:50,452 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 22:27:50,474 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:27:50,475 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 22:27:50,493 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 22:27:50,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:50,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:50,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888643044] [2023-11-06 22:27:50,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888643044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:50,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:50,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:27:50,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058692441] [2023-11-06 22:27:50,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:50,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:27:50,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:50,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:27:50,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2023-11-06 22:27:50,495 INFO L87 Difference]: Start difference. First operand 1595 states and 2170 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 22:27:59,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:27:59,077 INFO L93 Difference]: Finished difference Result 2687 states and 3624 transitions. [2023-11-06 22:27:59,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:27:59,078 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 22:27:59,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:27:59,083 INFO L225 Difference]: With dead ends: 2687 [2023-11-06 22:27:59,083 INFO L226 Difference]: Without dead ends: 2687 [2023-11-06 22:27:59,083 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 22:27:59,084 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 1482 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 3451 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 5290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1811 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:27:59,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 2576 Invalid, 5290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3451 Invalid, 0 Unknown, 1811 Unchecked, 8.4s Time] [2023-11-06 22:27:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2023-11-06 22:27:59,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1591. [2023-11-06 22:27:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1167 states have (on average 1.7969151670951158) internal successors, (2097), 1555 states have internal predecessors, (2097), 32 states have call successors, (32), 14 states have call predecessors, (32), 12 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-06 22:27:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 2158 transitions. [2023-11-06 22:27:59,121 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 2158 transitions. Word has length 74 [2023-11-06 22:27:59,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:27:59,121 INFO L495 AbstractCegarLoop]: Abstraction has 1591 states and 2158 transitions. [2023-11-06 22:27:59,121 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 22:27:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 2158 transitions. [2023-11-06 22:27:59,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-06 22:27:59,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:27:59,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:27:59,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:59,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:59,344 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:27:59,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:59,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1978716879, now seen corresponding path program 1 times [2023-11-06 22:27:59,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:27:59,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547511878] [2023-11-06 22:27:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:59,346 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 22:27:59,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:27:59,347 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:59,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:27:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:59,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:27:59,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:27:59,805 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 22:27:59,835 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 22:27:59,877 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 22:27:59,939 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 22:27:59,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:27:59,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:27:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547511878] [2023-11-06 22:27:59,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547511878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:59,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:59,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:27:59,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786663247] [2023-11-06 22:27:59,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:59,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:27:59,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:27:59,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:27:59,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:27:59,942 INFO L87 Difference]: Start difference. First operand 1591 states and 2158 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 22:28:04,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:04,989 INFO L93 Difference]: Finished difference Result 1606 states and 2174 transitions. [2023-11-06 22:28:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:28:04,990 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 22:28:04,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:04,993 INFO L225 Difference]: With dead ends: 1606 [2023-11-06 22:28:04,993 INFO L226 Difference]: Without dead ends: 1606 [2023-11-06 22:28:04,993 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 22:28:04,994 INFO L413 NwaCegarLoop]: 927 mSDtfsCounter, 19 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:04,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4001 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-06 22:28:04,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2023-11-06 22:28:05,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1605. [2023-11-06 22:28:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1179 states have (on average 1.7921967769296014) internal successors, (2113), 1567 states have internal predecessors, (2113), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-06 22:28:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2174 transitions. [2023-11-06 22:28:05,024 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2174 transitions. Word has length 81 [2023-11-06 22:28:05,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:05,025 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 2174 transitions. [2023-11-06 22:28:05,025 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 22:28:05,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2174 transitions. [2023-11-06 22:28:05,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-06 22:28:05,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:05,026 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 22:28:05,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Ended with exit code 0 [2023-11-06 22:28:05,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:05,242 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:28:05,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:05,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1210681181, now seen corresponding path program 1 times [2023-11-06 22:28:05,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:05,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014580728] [2023-11-06 22:28:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:05,243 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 22:28:05,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:05,245 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:05,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:05,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:28:05,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:05,762 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 22:28:05,815 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 22:28:05,826 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 22:28:05,885 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 22:28:05,988 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 22:28:05,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:28:05,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:05,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014580728] [2023-11-06 22:28:05,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014580728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:05,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:05,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:05,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628140826] [2023-11-06 22:28:05,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:05,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:28:05,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:05,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:28:05,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:28:05,991 INFO L87 Difference]: Start difference. First operand 1605 states and 2174 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 22:28:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:12,966 INFO L93 Difference]: Finished difference Result 1605 states and 2172 transitions. [2023-11-06 22:28:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:28:12,967 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 22:28:12,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:12,969 INFO L225 Difference]: With dead ends: 1605 [2023-11-06 22:28:12,969 INFO L226 Difference]: Without dead ends: 1605 [2023-11-06 22:28:12,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:28:12,970 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 17 mSDsluCounter, 3838 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:12,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4760 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-06 22:28:12,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-11-06 22:28:12,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1605. [2023-11-06 22:28:12,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1179 states have (on average 1.7905004240882103) internal successors, (2111), 1567 states have internal predecessors, (2111), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (29), 24 states have call predecessors, (29), 28 states have call successors, (29) [2023-11-06 22:28:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 2172 transitions. [2023-11-06 22:28:12,996 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 2172 transitions. Word has length 82 [2023-11-06 22:28:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:12,997 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 2172 transitions. [2023-11-06 22:28:12,997 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 22:28:12,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 2172 transitions. [2023-11-06 22:28:12,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:28:12,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:12,998 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 22:28:13,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:13,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:13,213 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:28:13,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:13,214 INFO L85 PathProgramCache]: Analyzing trace with hash -334493131, now seen corresponding path program 1 times [2023-11-06 22:28:13,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:13,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663066449] [2023-11-06 22:28:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:13,214 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 22:28:13,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:13,215 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:13,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:13,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:28:13,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:13,714 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 22:28:13,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:28:13,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:13,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663066449] [2023-11-06 22:28:13,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663066449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:13,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:13,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:28:13,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615960589] [2023-11-06 22:28:13,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:13,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:28:13,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:28:13,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:28:13,717 INFO L87 Difference]: Start difference. First operand 1605 states and 2172 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 22:28:13,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:13,808 INFO L93 Difference]: Finished difference Result 1621 states and 2190 transitions. [2023-11-06 22:28:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:28:13,809 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 22:28:13,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:13,813 INFO L225 Difference]: With dead ends: 1621 [2023-11-06 22:28:13,814 INFO L226 Difference]: Without dead ends: 1615 [2023-11-06 22:28:13,814 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 22:28:13,815 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 7 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:13,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2787 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:28:13,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2023-11-06 22:28:13,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1615. [2023-11-06 22:28:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1187 states have (on average 1.7868576242628476) internal successors, (2121), 1577 states have internal predecessors, (2121), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2023-11-06 22:28:13,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2184 transitions. [2023-11-06 22:28:13,842 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2184 transitions. Word has length 89 [2023-11-06 22:28:13,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:13,842 INFO L495 AbstractCegarLoop]: Abstraction has 1615 states and 2184 transitions. [2023-11-06 22:28:13,843 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 22:28:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2184 transitions. [2023-11-06 22:28:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-06 22:28:13,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:13,844 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 22:28:13,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:14,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:14,065 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:28:14,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:14,066 INFO L85 PathProgramCache]: Analyzing trace with hash 30344255, now seen corresponding path program 1 times [2023-11-06 22:28:14,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:14,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637590070] [2023-11-06 22:28:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:14,066 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 22:28:14,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:14,067 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:14,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:14,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:28:14,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:14,529 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 22:28:14,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:28:14,678 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 22:28:14,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:14,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637590070] [2023-11-06 22:28:14,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637590070] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:28:14,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:28:14,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-06 22:28:14,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640131836] [2023-11-06 22:28:14,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:28:14,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:14,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:14,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:14,682 INFO L87 Difference]: Start difference. First operand 1615 states and 2184 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 22:28:15,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:15,011 INFO L93 Difference]: Finished difference Result 1641 states and 2214 transitions. [2023-11-06 22:28:15,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:28:15,013 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 22:28:15,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:15,017 INFO L225 Difference]: With dead ends: 1641 [2023-11-06 22:28:15,017 INFO L226 Difference]: Without dead ends: 1629 [2023-11-06 22:28:15,017 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 22:28:15,018 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 27 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4642 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:15,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4642 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:28:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2023-11-06 22:28:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1623. [2023-11-06 22:28:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1195 states have (on average 1.7832635983263598) internal successors, (2131), 1585 states have internal predecessors, (2131), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2023-11-06 22:28:15,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2194 transitions. [2023-11-06 22:28:15,043 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2194 transitions. Word has length 90 [2023-11-06 22:28:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:15,044 INFO L495 AbstractCegarLoop]: Abstraction has 1623 states and 2194 transitions. [2023-11-06 22:28:15,044 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 22:28:15,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2194 transitions. [2023-11-06 22:28:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-06 22:28:15,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:15,045 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 22:28:15,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:15,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:15,265 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:28:15,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:15,266 INFO L85 PathProgramCache]: Analyzing trace with hash -519881547, now seen corresponding path program 2 times [2023-11-06 22:28:15,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:15,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162131053] [2023-11-06 22:28:15,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:28:15,267 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 22:28:15,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:15,269 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:15,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:15,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:28:15,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:28:15,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:28:16,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:16,105 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 22:28:16,105 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:28:16,450 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 22:28:16,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:16,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162131053] [2023-11-06 22:28:16,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162131053] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:28:16,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:28:16,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-06 22:28:16,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974269464] [2023-11-06 22:28:16,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:28:16,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:28:16,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:16,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:28:16,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:28:16,465 INFO L87 Difference]: Start difference. First operand 1623 states and 2194 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 22:28:17,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:17,496 INFO L93 Difference]: Finished difference Result 1665 states and 2250 transitions. [2023-11-06 22:28:17,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-06 22:28:17,497 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 22:28:17,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:17,501 INFO L225 Difference]: With dead ends: 1665 [2023-11-06 22:28:17,502 INFO L226 Difference]: Without dead ends: 1653 [2023-11-06 22:28:17,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=343, Invalid=649, Unknown=0, NotChecked=0, Total=992 [2023-11-06 22:28:17,503 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 53 mSDsluCounter, 11111 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 12047 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:17,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 12047 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:28:17,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2023-11-06 22:28:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1641. [2023-11-06 22:28:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1213 states have (on average 1.7765869744435285) internal successors, (2155), 1603 states have internal predecessors, (2155), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2023-11-06 22:28:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2218 transitions. [2023-11-06 22:28:17,530 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2218 transitions. Word has length 93 [2023-11-06 22:28:17,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:17,531 INFO L495 AbstractCegarLoop]: Abstraction has 1641 states and 2218 transitions. [2023-11-06 22:28:17,531 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 22:28:17,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2218 transitions. [2023-11-06 22:28:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-06 22:28:17,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:17,532 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 22:28:17,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:17,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:17,750 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:28:17,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:17,750 INFO L85 PathProgramCache]: Analyzing trace with hash -968675211, now seen corresponding path program 3 times [2023-11-06 22:28:17,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:17,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843786637] [2023-11-06 22:28:17,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:28:17,751 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 22:28:17,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:17,753 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:17,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:18,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:28:18,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:28:18,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:28:18,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:19,130 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 22:28:19,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:28:20,261 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 22:28:20,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843786637] [2023-11-06 22:28:20,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843786637] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:28:20,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:28:20,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-11-06 22:28:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516257194] [2023-11-06 22:28:20,263 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:28:20,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-06 22:28:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-06 22:28:20,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-11-06 22:28:20,265 INFO L87 Difference]: Start difference. First operand 1641 states and 2218 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 22:28:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:24,202 INFO L93 Difference]: Finished difference Result 1713 states and 2320 transitions. [2023-11-06 22:28:24,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-06 22:28:24,203 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 22:28:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:24,208 INFO L225 Difference]: With dead ends: 1713 [2023-11-06 22:28:24,208 INFO L226 Difference]: Without dead ends: 1695 [2023-11-06 22:28:24,209 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 22:28:24,210 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 64 mSDsluCounter, 12984 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 13926 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:24,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 13926 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:28:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2023-11-06 22:28:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1677. [2023-11-06 22:28:24,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1249 states have (on average 1.7622097678142514) internal successors, (2201), 1639 states have internal predecessors, (2201), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2023-11-06 22:28:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2264 transitions. [2023-11-06 22:28:24,237 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2264 transitions. Word has length 99 [2023-11-06 22:28:24,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:24,238 INFO L495 AbstractCegarLoop]: Abstraction has 1677 states and 2264 transitions. [2023-11-06 22:28:24,238 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 22:28:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2264 transitions. [2023-11-06 22:28:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:28:24,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:24,240 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 22:28:24,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:24,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:24,459 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:28:24,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash -144857099, now seen corresponding path program 4 times [2023-11-06 22:28:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:24,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967040204] [2023-11-06 22:28:24,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:28:24,460 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 22:28:24,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:24,462 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:24,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:25,037 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:28:25,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:28:25,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-06 22:28:25,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:25,849 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 22:28:25,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:28:28,677 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 22:28:28,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:28,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967040204] [2023-11-06 22:28:28,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967040204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:28:28,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:28:28,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-06 22:28:28,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487895232] [2023-11-06 22:28:28,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:28:28,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-06 22:28:28,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:28:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-06 22:28:28,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=725, Invalid=1927, Unknown=0, NotChecked=0, Total=2652 [2023-11-06 22:28:28,682 INFO L87 Difference]: Start difference. First operand 1677 states and 2264 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 22:28:42,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:28:42,833 INFO L93 Difference]: Finished difference Result 1803 states and 2454 transitions. [2023-11-06 22:28:42,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-11-06 22:28:42,834 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 22:28:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:28:42,838 INFO L225 Difference]: With dead ends: 1803 [2023-11-06 22:28:42,839 INFO L226 Difference]: Without dead ends: 1791 [2023-11-06 22:28:42,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=4121, Invalid=9921, Unknown=0, NotChecked=0, Total=14042 [2023-11-06 22:28:42,844 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 171 mSDsluCounter, 24110 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 25063 SdHoareTripleChecker+Invalid, 2299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:28:42,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 25063 Invalid, 2299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-06 22:28:42,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2023-11-06 22:28:42,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1745. [2023-11-06 22:28:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1317 states have (on average 1.7410782080485954) internal successors, (2293), 1707 states have internal predecessors, (2293), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2023-11-06 22:28:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2356 transitions. [2023-11-06 22:28:42,874 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2356 transitions. Word has length 111 [2023-11-06 22:28:42,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:28:42,875 INFO L495 AbstractCegarLoop]: Abstraction has 1745 states and 2356 transitions. [2023-11-06 22:28:42,875 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 22:28:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2356 transitions. [2023-11-06 22:28:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-06 22:28:42,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:28:42,877 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 22:28:42,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:43,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:43,094 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:28:43,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:43,095 INFO L85 PathProgramCache]: Analyzing trace with hash -350587467, now seen corresponding path program 5 times [2023-11-06 22:28:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:28:43,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006663007] [2023-11-06 22:28:43,096 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:28:43,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:28:43,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:28:43,098 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:43,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:28:44,766 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 22:28:44,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:28:44,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-06 22:28:44,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:28:44,823 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 22:28:45,120 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:28:45,120 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 22:28:45,181 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 22:28:45,329 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 22:28:46,979 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:28:46,980 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 22:28:47,050 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 22:28:47,112 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 22:28:47,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:28:49,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:28:49,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006663007] [2023-11-06 22:28:49,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006663007] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:28:49,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [744284172] [2023-11-06 22:28:49,813 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:28:49,813 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:28:49,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:28:49,815 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:28:49,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-06 22:30:02,799 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 22:30:02,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:30:03,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-06 22:30:03,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:30:03,053 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 22:30:03,293 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:30:03,293 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 22:30:03,318 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 22:30:03,389 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 22:30:04,935 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:30:04,935 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 22:30:05,032 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 22:30:05,052 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 22:30:05,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:30:05,671 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3174 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_3174) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-06 22:30:05,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [744284172] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:30:05,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:30:05,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2023-11-06 22:30:05,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464353176] [2023-11-06 22:30:05,674 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:30:05,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:30:05,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:30:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:30:05,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=5, NotChecked=30, Total=306 [2023-11-06 22:30:05,676 INFO L87 Difference]: Start difference. First operand 1745 states and 2356 transitions. Second operand has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:30:17,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:30:17,542 INFO L93 Difference]: Finished difference Result 2182 states and 2920 transitions. [2023-11-06 22:30:17,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:30:17,543 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 133 [2023-11-06 22:30:17,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:30:17,549 INFO L225 Difference]: With dead ends: 2182 [2023-11-06 22:30:17,549 INFO L226 Difference]: Without dead ends: 2182 [2023-11-06 22:30:17,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 254 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=127, Invalid=628, Unknown=5, NotChecked=52, Total=812 [2023-11-06 22:30:17,550 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 1596 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 3700 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:30:17,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 3660 Invalid, 3736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3700 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-11-06 22:30:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2023-11-06 22:30:17,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 1742. [2023-11-06 22:30:17,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1317 states have (on average 1.736522399392559) internal successors, (2287), 1704 states have internal predecessors, (2287), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (31), 24 states have call predecessors, (31), 28 states have call successors, (31) [2023-11-06 22:30:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2350 transitions. [2023-11-06 22:30:17,591 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2350 transitions. Word has length 133 [2023-11-06 22:30:17,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:30:17,591 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2350 transitions. [2023-11-06 22:30:17,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:30:17,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2350 transitions. [2023-11-06 22:30:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-06 22:30:17,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:30:17,594 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 22:30:17,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-11-06 22:30:17,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 22:30:18,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:30:18,011 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-06 22:30:18,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:18,011 INFO L85 PathProgramCache]: Analyzing trace with hash -350587466, now seen corresponding path program 1 times [2023-11-06 22:30:18,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:30:18,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483573702] [2023-11-06 22:30:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:18,013 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 22:30:18,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:30:18,014 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 22:30:18,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-11-06 22:30:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:19,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 120 conjunts are in the unsatisfiable core [2023-11-06 22:30:19,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:30:19,138 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 22:30:19,685 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 22:30:19,777 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:30:19,777 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 22:30:19,834 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 15 treesize of output 1 [2023-11-06 22:30:19,840 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 11 treesize of output 7 [2023-11-06 22:30:20,035 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 18 treesize of output 10 [2023-11-06 22:30:20,053 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 22:30:21,698 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:30:21,698 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 50 treesize of output 45 [2023-11-06 22:30:21,716 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-06 22:30:21,814 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 25 treesize of output 13 [2023-11-06 22:30:21,826 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 22:30:21,887 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 22:30:21,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:30:24,295 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3745 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3744 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_3745) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_3744) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3745 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_3745) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv16 32)) (bvadd .cse1 (_ bv20 32))))))) is different from false [2023-11-06 22:30:24,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:30:24,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483573702] [2023-11-06 22:30:24,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483573702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:30:24,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1401158480] [2023-11-06 22:30:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:24,306 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:30:24,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:30:24,307 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:30:24,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c39cdcb-9ffd-46be-bfe8-e4dc45e0445e/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process