./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:20,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:20,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:03:20,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:20,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:20,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:20,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:20,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:20,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:20,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:20,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:20,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:20,471 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:20,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:20,472 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:20,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:03:20,473 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:20,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:20,474 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:03:20,475 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:03:20,475 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:03:20,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:20,481 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:03:20,481 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:03:20,482 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:20,482 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:20,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:20,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:20,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:20,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:20,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:20,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:20,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:03:20,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:03:20,491 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:20,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:20,492 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:20,492 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:20,493 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_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-11-12 02:03:20,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:20,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:20,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:20,789 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:20,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:20,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-12 02:03:23,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:24,260 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:24,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-12 02:03:24,292 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data/c3ec1bda4/9d67a3b3d81740c58593dc2a8b785faf/FLAGd339c6b76 [2023-11-12 02:03:24,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data/c3ec1bda4/9d67a3b3d81740c58593dc2a8b785faf [2023-11-12 02:03:24,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:24,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:24,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:24,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:24,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:24,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:24" (1/1) ... [2023-11-12 02:03:24,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36dadbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:24, skipping insertion in model container [2023-11-12 02:03:24,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:24" (1/1) ... [2023-11-12 02:03:24,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:25,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:25,031 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) [2023-11-12 02:03:25,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42691dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:25, skipping insertion in model container [2023-11-12 02:03:25,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:25,032 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:03:25,034 INFO L158 Benchmark]: Toolchain (without parser) took 712.86ms. Allocated memory is still 163.6MB. Free memory was 114.5MB in the beginning and 95.0MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:03:25,035 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory was 109.7MB in the beginning and 109.6MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:03:25,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.98ms. Allocated memory is still 163.6MB. Free memory was 114.5MB in the beginning and 95.0MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:03:25,037 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory was 109.7MB in the beginning and 109.6MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.98ms. Allocated memory is still 163.6MB. Free memory was 114.5MB in the beginning and 95.0MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:27,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:27,485 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:03:27,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:27,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:27,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:27,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:27,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:27,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:27,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:27,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:27,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:27,554 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:27,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:27,556 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:27,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:03:27,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:27,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:27,558 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:03:27,558 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:03:27,559 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:03:27,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:27,560 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:03:27,560 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:03:27,560 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:03:27,561 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:03:27,561 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:27,562 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:27,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:27,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:27,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:27,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:27,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:27,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:27,566 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:03:27,566 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:03:27,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:27,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:27,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:27,568 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:03:27,568 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:27,569 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_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-11-12 02:03:27,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:27,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:27,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:27,983 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:27,983 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:27,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-12 02:03:31,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:31,538 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:31,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-12 02:03:31,571 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data/785f5e701/c94c369f16d4477b8e0038facbb4e6c2/FLAG0acecbfc2 [2023-11-12 02:03:31,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/data/785f5e701/c94c369f16d4477b8e0038facbb4e6c2 [2023-11-12 02:03:31,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:31,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:31,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:31,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:31,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:31,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:31" (1/1) ... [2023-11-12 02:03:31,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5235cf3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:31, skipping insertion in model container [2023-11-12 02:03:31,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:31" (1/1) ... [2023-11-12 02:03:31,690 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:32,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:32,342 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:03:32,358 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:32,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:32,447 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:03:32,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:32,608 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:03:32,616 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:03:32,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32 WrapperNode [2023-11-12 02:03:32,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:32,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:32,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:03:32,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:03:32,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,756 INFO L138 Inliner]: procedures = 180, calls = 287, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1047 [2023-11-12 02:03:32,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:32,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:03:32,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:03:32,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:03:32,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:03:32,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:03:32,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:03:32,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:03:32,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (1/1) ... [2023-11-12 02:03:32,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:32,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:03:33,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:03:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 02:03:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 02:03:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 02:03:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:03:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:03:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:03:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:03:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:03:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:03:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:03:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:03:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:03:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:03:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:03:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:03:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:03:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:03:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:03:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:03:33,289 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:03:33,294 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:03:33,336 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:03:38,582 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:03:38,597 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:03:38,597 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-12 02:03:38,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:38 BoogieIcfgContainer [2023-11-12 02:03:38,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:03:38,603 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:03:38,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:03:38,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:03:38,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:03:31" (1/3) ... [2023-11-12 02:03:38,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3394256d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:38, skipping insertion in model container [2023-11-12 02:03:38,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:32" (2/3) ... [2023-11-12 02:03:38,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3394256d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:38, skipping insertion in model container [2023-11-12 02:03:38,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:38" (3/3) ... [2023-11-12 02:03:38,609 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2023-11-12 02:03:38,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:03:38,628 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 533 error locations. [2023-11-12 02:03:38,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:03:38,718 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;@3f35b890, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:03:38,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 533 error locations. [2023-11-12 02:03:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 539 states have (on average 2.222634508348794) internal successors, (1198), 1076 states have internal predecessors, (1198), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 02:03:38,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 02:03:38,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:38,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 02:03:38,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:38,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:38,746 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-12 02:03:38,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:38,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486431217] [2023-11-12 02:03:38,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:38,759 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 [2023-11-12 02:03:38,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:38,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:38,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:03:38,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:38,988 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 [2023-11-12 02:03:38,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:39,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:39,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:39,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486431217] [2023-11-12 02:03:39,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486431217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:39,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:39,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:39,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260551620] [2023-11-12 02:03:39,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:39,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:39,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:39,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:39,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:39,039 INFO L87 Difference]: Start difference. First operand has 1083 states, 539 states have (on average 2.222634508348794) internal successors, (1198), 1076 states have internal predecessors, (1198), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) 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) [2023-11-12 02:03:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:41,049 INFO L93 Difference]: Finished difference Result 1080 states and 1145 transitions. [2023-11-12 02:03:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:41,052 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 [2023-11-12 02:03:41,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:41,074 INFO L225 Difference]: With dead ends: 1080 [2023-11-12 02:03:41,074 INFO L226 Difference]: Without dead ends: 1078 [2023-11-12 02:03:41,076 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 [2023-11-12 02:03:41,079 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 996 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:41,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 721 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:03:41,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-11-12 02:03:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1069. [2023-11-12 02:03:41,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 541 states have (on average 2.0646950092421443) internal successors, (1117), 1062 states have internal predecessors, (1117), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:41,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1135 transitions. [2023-11-12 02:03:41,194 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1135 transitions. Word has length 3 [2023-11-12 02:03:41,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:41,195 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1135 transitions. [2023-11-12 02:03:41,195 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) [2023-11-12 02:03:41,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1135 transitions. [2023-11-12 02:03:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 02:03:41,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:41,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 02:03:41,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:41,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:41,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:41,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:41,415 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-12 02:03:41,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:41,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818152863] [2023-11-12 02:03:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:41,416 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 [2023-11-12 02:03:41,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:41,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:41,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:41,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:41,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:41,571 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 [2023-11-12 02:03:41,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:41,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:41,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:41,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818152863] [2023-11-12 02:03:41,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818152863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:41,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:41,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:41,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310726334] [2023-11-12 02:03:41,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:41,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:41,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:41,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:41,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:41,586 INFO L87 Difference]: Start difference. First operand 1069 states and 1135 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) [2023-11-12 02:03:45,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:45,064 INFO L93 Difference]: Finished difference Result 1483 states and 1590 transitions. [2023-11-12 02:03:45,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:45,065 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 [2023-11-12 02:03:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:45,073 INFO L225 Difference]: With dead ends: 1483 [2023-11-12 02:03:45,073 INFO L226 Difference]: Without dead ends: 1483 [2023-11-12 02:03:45,073 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 [2023-11-12 02:03:45,075 INFO L413 NwaCegarLoop]: 940 mSDtfsCounter, 444 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:45,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1537 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-12 02:03:45,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2023-11-12 02:03:45,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1274. [2023-11-12 02:03:45,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 747 states have (on average 2.0535475234270417) internal successors, (1534), 1267 states have internal predecessors, (1534), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1552 transitions. [2023-11-12 02:03:45,115 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1552 transitions. Word has length 3 [2023-11-12 02:03:45,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:45,116 INFO L495 AbstractCegarLoop]: Abstraction has 1274 states and 1552 transitions. [2023-11-12 02:03:45,116 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) [2023-11-12 02:03:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1552 transitions. [2023-11-12 02:03:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:03:45,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:45,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:45,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-12 02:03:45,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:45,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:45,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:45,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2023-11-12 02:03:45,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:45,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009130612] [2023-11-12 02:03:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:45,326 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 [2023-11-12 02:03:45,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:45,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:45,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:45,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:03:45,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:45,524 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 [2023-11-12 02:03:45,531 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 [2023-11-12 02:03:45,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:03:45,626 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 [2023-11-12 02:03:45,647 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 02:03:45,648 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 [2023-11-12 02:03:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:45,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:45,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:45,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009130612] [2023-11-12 02:03:45,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009130612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:45,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:45,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417786512] [2023-11-12 02:03:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:45,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:45,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:45,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:45,674 INFO L87 Difference]: Start difference. First operand 1274 states and 1552 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:48,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:48,788 INFO L93 Difference]: Finished difference Result 1277 states and 1557 transitions. [2023-11-12 02:03:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:48,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 02:03:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:48,796 INFO L225 Difference]: With dead ends: 1277 [2023-11-12 02:03:48,796 INFO L226 Difference]: Without dead ends: 1277 [2023-11-12 02:03:48,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:48,797 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1088 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:48,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 436 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-12 02:03:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2023-11-12 02:03:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1058. [2023-11-12 02:03:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 541 states have (on average 2.042513863216266) internal successors, (1105), 1051 states have internal predecessors, (1105), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1123 transitions. [2023-11-12 02:03:48,827 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1123 transitions. Word has length 7 [2023-11-12 02:03:48,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:48,828 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1123 transitions. [2023-11-12 02:03:48,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:48,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1123 transitions. [2023-11-12 02:03:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:03:48,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:48,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:48,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:49,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:49,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:49,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:49,041 INFO L85 PathProgramCache]: Analyzing trace with hash 695763858, now seen corresponding path program 1 times [2023-11-12 02:03:49,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:49,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849350582] [2023-11-12 02:03:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:49,043 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 [2023-11-12 02:03:49,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:49,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:49,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:49,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:03:49,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:49,196 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 [2023-11-12 02:03:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:49,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:49,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:49,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849350582] [2023-11-12 02:03:49,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849350582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:49,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:49,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:49,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224803940] [2023-11-12 02:03:49,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:49,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:49,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:49,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:49,211 INFO L87 Difference]: Start difference. First operand 1058 states and 1123 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:51,581 INFO L93 Difference]: Finished difference Result 1389 states and 1484 transitions. [2023-11-12 02:03:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:51,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 02:03:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:51,589 INFO L225 Difference]: With dead ends: 1389 [2023-11-12 02:03:51,590 INFO L226 Difference]: Without dead ends: 1389 [2023-11-12 02:03:51,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:51,591 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 996 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:51,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1222 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 02:03:51,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2023-11-12 02:03:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1009. [2023-11-12 02:03:51,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 541 states have (on average 1.9519408502772644) internal successors, (1056), 1002 states have internal predecessors, (1056), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1074 transitions. [2023-11-12 02:03:51,619 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1074 transitions. Word has length 8 [2023-11-12 02:03:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:51,620 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1074 transitions. [2023-11-12 02:03:51,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:51,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1074 transitions. [2023-11-12 02:03:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:03:51,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:51,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:51,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:51,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:51,837 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:51,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:51,837 INFO L85 PathProgramCache]: Analyzing trace with hash 695763859, now seen corresponding path program 1 times [2023-11-12 02:03:51,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:51,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488833696] [2023-11-12 02:03:51,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:51,838 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 [2023-11-12 02:03:51,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:51,839 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:51,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:51,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:51,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:51,975 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 [2023-11-12 02:03:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:52,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:52,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:52,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488833696] [2023-11-12 02:03:52,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488833696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:52,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:52,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:03:52,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696956169] [2023-11-12 02:03:52,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:52,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:52,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:52,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:52,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:52,016 INFO L87 Difference]: Start difference. First operand 1009 states and 1074 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:55,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:55,135 INFO L93 Difference]: Finished difference Result 1470 states and 1568 transitions. [2023-11-12 02:03:55,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:55,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 02:03:55,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:55,143 INFO L225 Difference]: With dead ends: 1470 [2023-11-12 02:03:55,143 INFO L226 Difference]: Without dead ends: 1470 [2023-11-12 02:03:55,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:55,144 INFO L413 NwaCegarLoop]: 1176 mSDtfsCounter, 681 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:55,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1623 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-12 02:03:55,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states. [2023-11-12 02:03:55,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1031. [2023-11-12 02:03:55,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 573 states have (on average 1.9406631762652704) internal successors, (1112), 1024 states have internal predecessors, (1112), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1130 transitions. [2023-11-12 02:03:55,174 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1130 transitions. Word has length 8 [2023-11-12 02:03:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:55,175 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1130 transitions. [2023-11-12 02:03:55,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1130 transitions. [2023-11-12 02:03:55,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:03:55,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:55,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:55,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:55,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:55,387 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:55,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash -748709626, now seen corresponding path program 1 times [2023-11-12 02:03:55,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:55,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51106301] [2023-11-12 02:03:55,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:55,388 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 [2023-11-12 02:03:55,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:55,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:55,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:55,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:03:55,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:55,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:55,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:55,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51106301] [2023-11-12 02:03:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51106301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:55,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:03:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974075353] [2023-11-12 02:03:55,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:55,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:55,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:55,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:55,639 INFO L87 Difference]: Start difference. First operand 1031 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:56,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:56,389 INFO L93 Difference]: Finished difference Result 1485 states and 1618 transitions. [2023-11-12 02:03:56,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:03:56,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:03:56,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:56,398 INFO L225 Difference]: With dead ends: 1485 [2023-11-12 02:03:56,399 INFO L226 Difference]: Without dead ends: 1485 [2023-11-12 02:03:56,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:03:56,400 INFO L413 NwaCegarLoop]: 1124 mSDtfsCounter, 551 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:56,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 3048 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 02:03:56,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2023-11-12 02:03:56,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1276. [2023-11-12 02:03:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 818 states have (on average 1.921760391198044) internal successors, (1572), 1269 states have internal predecessors, (1572), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:56,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1590 transitions. [2023-11-12 02:03:56,436 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1590 transitions. Word has length 11 [2023-11-12 02:03:56,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:56,436 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1590 transitions. [2023-11-12 02:03:56,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1590 transitions. [2023-11-12 02:03:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 02:03:56,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:56,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:56,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-12 02:03:56,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:56,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr531ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:56,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:56,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1735160665, now seen corresponding path program 1 times [2023-11-12 02:03:56,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:56,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069309737] [2023-11-12 02:03:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:56,649 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 [2023-11-12 02:03:56,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:56,651 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:56,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:56,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:56,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:56,847 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:03:56,847 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:03:56,848 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:03:56,855 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 [2023-11-12 02:03:56,926 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:03:56,926 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 [2023-11-12 02:03:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:56,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:56,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:56,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069309737] [2023-11-12 02:03:56,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069309737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:56,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:56,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:03:56,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102474828] [2023-11-12 02:03:56,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:56,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:56,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:56,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:56,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:56,951 INFO L87 Difference]: Start difference. First operand 1276 states and 1590 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-11-12 02:03:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:58,599 INFO L93 Difference]: Finished difference Result 1654 states and 2039 transitions. [2023-11-12 02:03:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:58,600 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), 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 12 [2023-11-12 02:03:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:58,607 INFO L225 Difference]: With dead ends: 1654 [2023-11-12 02:03:58,607 INFO L226 Difference]: Without dead ends: 1654 [2023-11-12 02:03:58,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:03:58,608 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 377 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 2909 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:03:58,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 2909 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 02:03:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2023-11-12 02:03:58,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1275. [2023-11-12 02:03:58,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 817 states have (on average 1.9216646266829864) internal successors, (1570), 1268 states have internal predecessors, (1570), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1588 transitions. [2023-11-12 02:03:58,643 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1588 transitions. Word has length 12 [2023-11-12 02:03:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:58,644 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 1588 transitions. [2023-11-12 02:03:58,644 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), 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) [2023-11-12 02:03:58,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1588 transitions. [2023-11-12 02:03:58,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:03:58,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:58,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:58,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:58,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:58,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:58,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash -168464001, now seen corresponding path program 1 times [2023-11-12 02:03:58,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:58,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027857020] [2023-11-12 02:03:58,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:58,859 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 [2023-11-12 02:03:58,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:58,860 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:58,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:59,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:03:59,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:59,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:59,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:59,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:59,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027857020] [2023-11-12 02:03:59,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027857020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:59,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:59,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:03:59,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860227786] [2023-11-12 02:03:59,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:59,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:59,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:59,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:59,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:59,073 INFO L87 Difference]: Start difference. First operand 1275 states and 1588 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:59,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:59,102 INFO L93 Difference]: Finished difference Result 1215 states and 1502 transitions. [2023-11-12 02:03:59,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:59,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-12 02:03:59,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:59,113 INFO L225 Difference]: With dead ends: 1215 [2023-11-12 02:03:59,113 INFO L226 Difference]: Without dead ends: 1215 [2023-11-12 02:03:59,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:59,114 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 81 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1930 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 [2023-11-12 02:03:59,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1930 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:03:59,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2023-11-12 02:03:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2023-11-12 02:03:59,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 781 states have (on average 1.9001280409731114) internal successors, (1484), 1208 states have internal predecessors, (1484), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1502 transitions. [2023-11-12 02:03:59,144 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1502 transitions. Word has length 18 [2023-11-12 02:03:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:59,145 INFO L495 AbstractCegarLoop]: Abstraction has 1215 states and 1502 transitions. [2023-11-12 02:03:59,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1502 transitions. [2023-11-12 02:03:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:03:59,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:59,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:59,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:59,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:59,361 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:59,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:59,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1314847992, now seen corresponding path program 1 times [2023-11-12 02:03:59,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:59,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877321370] [2023-11-12 02:03:59,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:59,362 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 [2023-11-12 02:03:59,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:59,363 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:59,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:59,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:03:59,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:59,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:59,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:03:59,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877321370] [2023-11-12 02:03:59,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877321370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:59,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:59,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:03:59,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710570244] [2023-11-12 02:03:59,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:59,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:03:59,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:03:59,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:03:59,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:03:59,598 INFO L87 Difference]: Start difference. First operand 1215 states and 1502 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:59,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:03:59,683 INFO L93 Difference]: Finished difference Result 1187 states and 1446 transitions. [2023-11-12 02:03:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:03:59,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-12 02:03:59,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:03:59,690 INFO L225 Difference]: With dead ends: 1187 [2023-11-12 02:03:59,690 INFO L226 Difference]: Without dead ends: 1187 [2023-11-12 02:03:59,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:03:59,691 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 62 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2834 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 [2023-11-12 02:03:59,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2834 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:03:59,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-11-12 02:03:59,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1185. [2023-11-12 02:03:59,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 765 states have (on average 1.8640522875816994) internal successors, (1426), 1178 states have internal predecessors, (1426), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:03:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1444 transitions. [2023-11-12 02:03:59,717 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1444 transitions. Word has length 20 [2023-11-12 02:03:59,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:03:59,718 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1444 transitions. [2023-11-12 02:03:59,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:03:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1444 transitions. [2023-11-12 02:03:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:03:59,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:03:59,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:03:59,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:03:59,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:03:59,932 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:03:59,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:59,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685766, now seen corresponding path program 1 times [2023-11-12 02:03:59,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:03:59,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440586616] [2023-11-12 02:03:59,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:59,933 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 [2023-11-12 02:03:59,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:03:59,935 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:03:59,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:04:00,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:04:00,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:04:00,157 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 [2023-11-12 02:04:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:04:00,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:04:00,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:04:00,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440586616] [2023-11-12 02:04:00,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440586616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:04:00,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:04:00,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:04:00,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651766153] [2023-11-12 02:04:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:04:00,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:04:00,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:04:00,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:04:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:04:00,251 INFO L87 Difference]: Start difference. First operand 1185 states and 1444 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:04:03,137 INFO L93 Difference]: Finished difference Result 1638 states and 2019 transitions. [2023-11-12 02:04:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:04:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-12 02:04:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:04:03,148 INFO L225 Difference]: With dead ends: 1638 [2023-11-12 02:04:03,148 INFO L226 Difference]: Without dead ends: 1638 [2023-11-12 02:04:03,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:04:03,149 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 921 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:04:03,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 1232 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 02:04:03,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2023-11-12 02:04:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1181. [2023-11-12 02:04:03,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 765 states have (on average 1.8535947712418301) internal successors, (1418), 1174 states have internal predecessors, (1418), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:04:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1436 transitions. [2023-11-12 02:04:03,178 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1436 transitions. Word has length 34 [2023-11-12 02:04:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:04:03,179 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1436 transitions. [2023-11-12 02:04:03,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1436 transitions. [2023-11-12 02:04:03,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:04:03,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:04:03,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:04:03,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:03,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:04:03,393 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:04:03,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:04:03,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685767, now seen corresponding path program 1 times [2023-11-12 02:04:03,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:04:03,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095425233] [2023-11-12 02:04:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:04:03,394 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 [2023-11-12 02:04:03,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:04:03,396 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:04:03,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:04:03,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:04:03,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:04:03,591 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 [2023-11-12 02:04:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:04:03,830 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:04:03,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:04:03,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095425233] [2023-11-12 02:04:03,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095425233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:04:03,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:04:03,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:04:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083228579] [2023-11-12 02:04:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:04:03,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:04:03,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:04:03,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:04:03,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:04:03,833 INFO L87 Difference]: Start difference. First operand 1181 states and 1436 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:04:08,215 INFO L93 Difference]: Finished difference Result 1773 states and 2179 transitions. [2023-11-12 02:04:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:04:08,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-12 02:04:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:04:08,225 INFO L225 Difference]: With dead ends: 1773 [2023-11-12 02:04:08,225 INFO L226 Difference]: Without dead ends: 1773 [2023-11-12 02:04:08,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:04:08,226 INFO L413 NwaCegarLoop]: 1216 mSDtfsCounter, 608 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:04:08,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 2425 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-12 02:04:08,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-11-12 02:04:08,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1177. [2023-11-12 02:04:08,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 765 states have (on average 1.8431372549019607) internal successors, (1410), 1170 states have internal predecessors, (1410), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:04:08,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1428 transitions. [2023-11-12 02:04:08,255 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1428 transitions. Word has length 34 [2023-11-12 02:04:08,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:04:08,255 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 1428 transitions. [2023-11-12 02:04:08,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:08,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1428 transitions. [2023-11-12 02:04:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-12 02:04:08,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:04:08,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:04:08,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:08,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:04:08,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:04:08,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:04:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash -585509776, now seen corresponding path program 1 times [2023-11-12 02:04:08,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:04:08,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452353408] [2023-11-12 02:04:08,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:04:08,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:04:08,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:04:08,478 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:04:08,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:04:08,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:04:08,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:04:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:04:08,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:04:08,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:04:08,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452353408] [2023-11-12 02:04:08,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452353408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:04:08,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:04:08,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:04:08,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448575522] [2023-11-12 02:04:08,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:04:08,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:04:08,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:04:08,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:04:08,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:04:08,828 INFO L87 Difference]: Start difference. First operand 1177 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:04:08,891 INFO L93 Difference]: Finished difference Result 1165 states and 1408 transitions. [2023-11-12 02:04:08,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:04:08,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-12 02:04:08,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:04:08,898 INFO L225 Difference]: With dead ends: 1165 [2023-11-12 02:04:08,898 INFO L226 Difference]: Without dead ends: 1165 [2023-11-12 02:04:08,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:04:08,899 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 31 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2812 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 [2023-11-12 02:04:08,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2812 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:04:08,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2023-11-12 02:04:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1165. [2023-11-12 02:04:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 753 states have (on average 1.845949535192563) internal successors, (1390), 1158 states have internal predecessors, (1390), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:04:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1408 transitions. [2023-11-12 02:04:08,924 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1408 transitions. Word has length 53 [2023-11-12 02:04:08,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:04:08,924 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1408 transitions. [2023-11-12 02:04:08,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:08,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1408 transitions. [2023-11-12 02:04:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 02:04:08,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:04:08,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:04:08,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:09,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:04:09,139 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:04:09,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:04:09,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1514336476, now seen corresponding path program 1 times [2023-11-12 02:04:09,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:04:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436305693] [2023-11-12 02:04:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:04:09,141 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 [2023-11-12 02:04:09,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:04:09,142 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:04:09,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:04:09,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:04:09,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:04:09,574 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 [2023-11-12 02:04:09,584 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-12 02:04:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:04:10,289 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 [2023-11-12 02:04:10,306 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 02:04:10,307 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 [2023-11-12 02:04:10,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:04:10,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:04:10,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:04:10,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436305693] [2023-11-12 02:04:10,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436305693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:04:10,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:04:10,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:04:10,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170077364] [2023-11-12 02:04:10,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:04:10,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:04:10,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:04:10,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:04:10,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:04:10,323 INFO L87 Difference]: Start difference. First operand 1165 states and 1408 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:14,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:04:14,136 INFO L93 Difference]: Finished difference Result 1584 states and 1953 transitions. [2023-11-12 02:04:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:04:14,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-11-12 02:04:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:04:14,145 INFO L225 Difference]: With dead ends: 1584 [2023-11-12 02:04:14,145 INFO L226 Difference]: Without dead ends: 1584 [2023-11-12 02:04:14,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:04:14,146 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1224 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:04:14,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 575 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-12 02:04:14,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2023-11-12 02:04:14,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1095. [2023-11-12 02:04:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 721 states have (on average 1.7836338418862692) internal successors, (1286), 1088 states have internal predecessors, (1286), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:04:14,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1304 transitions. [2023-11-12 02:04:14,170 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1304 transitions. Word has length 61 [2023-11-12 02:04:14,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:04:14,171 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1304 transitions. [2023-11-12 02:04:14,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:04:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1304 transitions. [2023-11-12 02:04:14,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:04:14,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:04:14,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:04:14,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:04:14,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:04:14,388 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 530 more)] === [2023-11-12 02:04:14,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:04:14,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1287372127, now seen corresponding path program 1 times [2023-11-12 02:04:14,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:04:14,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872420525] [2023-11-12 02:04:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:04:14,389 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 [2023-11-12 02:04:14,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:04:14,391 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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) [2023-11-12 02:04:14,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bf799c-15b4-494d-bace-5065e6dfc9c5/bin/uautomizer-verify-uTZkv6EMXl/mathsat -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 [2023-11-12 02:04:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:04:14,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:04:14,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:04:14,764 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 [2023-11-12 02:04:14,786 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 [2023-11-12 02:04:14,822 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-12 02:04:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:04:14,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:04:14,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:04:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872420525] [2023-11-12 02:04:14,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872420525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:04:14,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:04:14,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:04:14,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715421903] [2023-11-12 02:04:14,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:04:14,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:04:14,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:04:14,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:04:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:04:14,838 INFO L87 Difference]: Start difference. First operand 1095 states and 1304 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)