./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:05:32,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:05:32,331 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 05:05:32,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:05:32,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:05:32,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:05:32,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:05:32,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:05:32,364 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:05:32,365 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:05:32,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:05:32,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:05:32,366 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:05:32,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:05:32,368 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:05:32,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:05:32,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:05:32,369 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:05:32,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:05:32,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:05:32,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:05:32,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:05:32,372 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:05:32,372 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:05:32,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:05:32,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:05:32,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:05:32,373 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:05:32,374 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:05:32,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:05:32,374 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:05:32,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:05:32,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:05:32,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:05:32,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:05:32,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:05:32,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:05:32,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:05:32,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:05:32,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:05:32,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:05:32,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:05:32,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:05:32,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:05:32,378 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_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2023-11-29 05:05:32,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:05:32,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:05:32,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:05:32,629 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:05:32,630 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:05:32,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2023-11-29 05:05:35,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:05:35,791 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:05:35,792 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2023-11-29 05:05:35,812 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data/a454bfb6d/ef0a8be0a1f4409293e8bbc9579551f9/FLAG353f16d6a [2023-11-29 05:05:35,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data/a454bfb6d/ef0a8be0a1f4409293e8bbc9579551f9 [2023-11-29 05:05:35,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:05:35,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:05:35,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:05:35,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:05:35,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:05:35,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:05:35" (1/1) ... [2023-11-29 05:05:35,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742b960e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:35, skipping insertion in model container [2023-11-29 05:05:35,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:05:35" (1/1) ... [2023-11-29 05:05:35,911 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:05:36,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:05:36,448 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 05:05:36,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6daa4d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:36, skipping insertion in model container [2023-11-29 05:05:36,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:05:36,449 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 05:05:36,451 INFO L158 Benchmark]: Toolchain (without parser) took 617.48ms. Allocated memory is still 134.2MB. Free memory was 92.9MB in the beginning and 72.2MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 05:05:36,452 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:05:36,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 614.70ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 72.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 05:05:36,454 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 614.70ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 72.2MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 739]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:05:38,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:05:38,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 05:05:38,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:05:38,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:05:38,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:05:38,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:05:38,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:05:38,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:05:38,397 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:05:38,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:05:38,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:05:38,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:05:38,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:05:38,400 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:05:38,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:05:38,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:05:38,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:05:38,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:05:38,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:05:38,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:05:38,403 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:05:38,403 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 05:05:38,404 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 05:05:38,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:05:38,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:05:38,405 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:05:38,405 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:05:38,405 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:05:38,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:05:38,406 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:05:38,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:05:38,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:05:38,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:05:38,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:05:38,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:05:38,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:05:38,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:05:38,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:05:38,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:05:38,410 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:05:38,410 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:05:38,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:05:38,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:05:38,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:05:38,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:05:38,423 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:05:38,424 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_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2023-11-29 05:05:38,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:05:38,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:05:38,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:05:38,733 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:05:38,734 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:05:38,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2023-11-29 05:05:41,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:05:41,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:05:41,843 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2023-11-29 05:05:41,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data/e975b006e/6752cb85fa844fa8b389f284c02ea152/FLAG1d3f4b3b5 [2023-11-29 05:05:41,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/data/e975b006e/6752cb85fa844fa8b389f284c02ea152 [2023-11-29 05:05:41,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:05:41,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:05:41,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:05:41,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:05:41,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:05:41,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:05:41" (1/1) ... [2023-11-29 05:05:41,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345c5aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:41, skipping insertion in model container [2023-11-29 05:05:41,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:05:41" (1/1) ... [2023-11-29 05:05:41,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:05:42,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:05:42,455 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 05:05:42,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:05:42,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:05:42,564 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:05:42,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:05:42,660 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:05:42,666 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:05:42,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42 WrapperNode [2023-11-29 05:05:42,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:05:42,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:05:42,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:05:42,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:05:42,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,772 INFO L138 Inliner]: procedures = 180, calls = 333, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1174 [2023-11-29 05:05:42,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:05:42,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:05:42,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:05:42,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:05:42,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,880 INFO L175 MemorySlicer]: Split 307 memory accesses to 4 slices as follows [2, 266, 5, 34]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 58, 1, 4]. [2023-11-29 05:05:42,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:05:42,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:05:42,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:05:42,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:05:42,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (1/1) ... [2023-11-29 05:05:42,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:05:42,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:05:43,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:05:43,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:05:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 05:05:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 05:05:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 05:05:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 05:05:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:05:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:05:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 05:05:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 05:05:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:05:43,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:05:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 05:05:43,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 05:05:43,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 05:05:43,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 05:05:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 05:05:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 05:05:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 05:05:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:05:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 05:05:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 05:05:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:05:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:05:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:05:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:05:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 05:05:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:05:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:05:43,287 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:05:43,289 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:05:52,295 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:05:52,339 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:05:52,339 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-29 05:05:52,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:05:52 BoogieIcfgContainer [2023-11-29 05:05:52,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:05:52,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:05:52,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:05:52,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:05:52,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:05:41" (1/3) ... [2023-11-29 05:05:52,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff4a5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:05:52, skipping insertion in model container [2023-11-29 05:05:52,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:05:42" (2/3) ... [2023-11-29 05:05:52,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff4a5b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:05:52, skipping insertion in model container [2023-11-29 05:05:52,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:05:52" (3/3) ... [2023-11-29 05:05:52,348 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-2.i [2023-11-29 05:05:52,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:05:52,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:05:52,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:05:52,417 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;@4953b056, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:05:52,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:05:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 218 states have (on average 1.6743119266055047) internal successors, (365), 221 states have internal predecessors, (365), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:05:52,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 05:05:52,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:52,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 05:05:52,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:05:52,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:52,433 INFO L85 PathProgramCache]: Analyzing trace with hash 969816, now seen corresponding path program 1 times [2023-11-29 05:05:52,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:05:52,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939753201] [2023-11-29 05:05:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:52,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:05:52,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:05:52,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:05:52,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:05:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:52,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:05:52,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:05:52,736 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_21| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_21|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_21| (_ bv0 1))))) is different from true [2023-11-29 05:05:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:05:52,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:05:52,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:05:52,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939753201] [2023-11-29 05:05:52,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939753201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:52,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:52,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:05:52,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851424211] [2023-11-29 05:05:52,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:52,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:05:52,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:05:52,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:05:52,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 05:05:52,776 INFO L87 Difference]: Start difference. First operand has 228 states, 218 states have (on average 1.6743119266055047) internal successors, (365), 221 states have internal predecessors, (365), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.0) 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) [2023-11-29 05:05:57,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:05:57,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:57,317 INFO L93 Difference]: Finished difference Result 350 states and 462 transitions. [2023-11-29 05:05:57,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:05:57,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2023-11-29 05:05:57,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:57,329 INFO L225 Difference]: With dead ends: 350 [2023-11-29 05:05:57,329 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 05:05:57,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 05:05:57,334 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 156 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 463 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:57,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 554 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 1 Unknown, 463 Unchecked, 4.5s Time] [2023-11-29 05:05:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 05:05:57,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 226. [2023-11-29 05:05:57,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 217 states have (on average 1.3087557603686637) internal successors, (284), 219 states have internal predecessors, (284), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:05:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 294 transitions. [2023-11-29 05:05:57,386 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 294 transitions. Word has length 3 [2023-11-29 05:05:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:57,387 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 294 transitions. [2023-11-29 05:05:57,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2023-11-29 05:05:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 294 transitions. [2023-11-29 05:05:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 05:05:57,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:57,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:57,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:05:57,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:05:57,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:05:57,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:57,590 INFO L85 PathProgramCache]: Analyzing trace with hash -861775582, now seen corresponding path program 1 times [2023-11-29 05:05:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:05:57,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999748562] [2023-11-29 05:05:57,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:57,591 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 [2023-11-29 05:05:57,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:05:57,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:05:57,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:05:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:57,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:05:57,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:05:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:05:57,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:05:57,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:05:57,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999748562] [2023-11-29 05:05:57,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999748562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:57,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:57,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:05:57,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426393939] [2023-11-29 05:05:57,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:57,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:05:57,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:05:57,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:05:57,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:05:57,879 INFO L87 Difference]: Start difference. First operand 226 states and 294 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:02,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:06:05,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:05,451 INFO L93 Difference]: Finished difference Result 372 states and 485 transitions. [2023-11-29 05:06:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:05,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 05:06:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:05,456 INFO L225 Difference]: With dead ends: 372 [2023-11-29 05:06:05,456 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 05:06:05,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:05,457 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 194 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:05,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 748 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2023-11-29 05:06:05,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 05:06:05,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 341. [2023-11-29 05:06:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 331 states have (on average 1.3081570996978853) internal successors, (433), 334 states have internal predecessors, (433), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:06:05,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 445 transitions. [2023-11-29 05:06:05,475 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 445 transitions. Word has length 14 [2023-11-29 05:06:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:05,476 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 445 transitions. [2023-11-29 05:06:05,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 445 transitions. [2023-11-29 05:06:05,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 05:06:05,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:05,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:05,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:05,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:05,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:05,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:05,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1194522455, now seen corresponding path program 1 times [2023-11-29 05:06:05,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:05,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846973689] [2023-11-29 05:06:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:05,680 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 [2023-11-29 05:06:05,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:05,716 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:05,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:05,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:06:05,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:06,118 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_22| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_22|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_22| (_ bv0 1))))) is different from true [2023-11-29 05:06:06,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:06,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:06,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:06,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846973689] [2023-11-29 05:06:06,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846973689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:06,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:06,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:06:06,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407921008] [2023-11-29 05:06:06,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:06,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:06:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:06,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:06:06,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 05:06:06,122 INFO L87 Difference]: Start difference. First operand 341 states and 445 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-29 05:06:10,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:06:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:10,677 INFO L93 Difference]: Finished difference Result 434 states and 564 transitions. [2023-11-29 05:06:10,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:06:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2023-11-29 05:06:10,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:10,679 INFO L225 Difference]: With dead ends: 434 [2023-11-29 05:06:10,680 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 05:06:10,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-29 05:06:10,681 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 86 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 396 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:10,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 553 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 1 Unknown, 396 Unchecked, 4.5s Time] [2023-11-29 05:06:10,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 05:06:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 386. [2023-11-29 05:06:10,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 375 states have (on average 1.3066666666666666) internal successors, (490), 378 states have internal predecessors, (490), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 05:06:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 504 transitions. [2023-11-29 05:06:10,696 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 504 transitions. Word has length 15 [2023-11-29 05:06:10,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:10,696 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 504 transitions. [2023-11-29 05:06:10,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-29 05:06:10,697 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 504 transitions. [2023-11-29 05:06:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 05:06:10,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:10,699 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] [2023-11-29 05:06:10,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 05:06:10,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:10,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:10,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:10,901 INFO L85 PathProgramCache]: Analyzing trace with hash 683156946, now seen corresponding path program 1 times [2023-11-29 05:06:10,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:10,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331940429] [2023-11-29 05:06:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:10,901 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 [2023-11-29 05:06:10,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:10,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:10,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:11,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:06:11,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:11,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:11,127 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:11,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:11,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331940429] [2023-11-29 05:06:11,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331940429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:11,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:11,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:06:11,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530890974] [2023-11-29 05:06:11,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:11,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:06:11,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:11,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:06:11,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:06:11,130 INFO L87 Difference]: Start difference. First operand 386 states and 504 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:11,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:11,285 INFO L93 Difference]: Finished difference Result 398 states and 492 transitions. [2023-11-29 05:06:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:06:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-11-29 05:06:11,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:11,288 INFO L225 Difference]: With dead ends: 398 [2023-11-29 05:06:11,288 INFO L226 Difference]: Without dead ends: 398 [2023-11-29 05:06:11,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:11,289 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 46 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:11,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 755 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:06:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-29 05:06:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 395. [2023-11-29 05:06:11,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 384 states have (on average 1.2369791666666667) internal successors, (475), 387 states have internal predecessors, (475), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 05:06:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 489 transitions. [2023-11-29 05:06:11,306 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 489 transitions. Word has length 50 [2023-11-29 05:06:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:11,306 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 489 transitions. [2023-11-29 05:06:11,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 489 transitions. [2023-11-29 05:06:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 05:06:11,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:11,309 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] [2023-11-29 05:06:11,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Ended with exit code 0 [2023-11-29 05:06:11,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:11,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:11,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:11,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1432565186, now seen corresponding path program 1 times [2023-11-29 05:06:11,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:11,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225349398] [2023-11-29 05:06:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:11,515 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 [2023-11-29 05:06:11,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:11,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:11,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:11,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:06:11,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:11,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:11,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:11,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225349398] [2023-11-29 05:06:11,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225349398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:11,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:11,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:06:11,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180629183] [2023-11-29 05:06:11,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:11,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:06:11,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:11,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:06:11,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:06:11,766 INFO L87 Difference]: Start difference. First operand 395 states and 489 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:11,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:11,902 INFO L93 Difference]: Finished difference Result 377 states and 459 transitions. [2023-11-29 05:06:11,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:06:11,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-11-29 05:06:11,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:11,906 INFO L225 Difference]: With dead ends: 377 [2023-11-29 05:06:11,906 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 05:06:11,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:11,908 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 15 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:11,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 757 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:06:11,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 05:06:11,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2023-11-29 05:06:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 366 states have (on average 1.215846994535519) internal successors, (445), 369 states have internal predecessors, (445), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 05:06:11,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 459 transitions. [2023-11-29 05:06:11,922 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 459 transitions. Word has length 50 [2023-11-29 05:06:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:11,923 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 459 transitions. [2023-11-29 05:06:11,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 459 transitions. [2023-11-29 05:06:11,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 05:06:11,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:11,926 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] [2023-11-29 05:06:11,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:12,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:12,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:12,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1294386758, now seen corresponding path program 1 times [2023-11-29 05:06:12,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:12,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283820569] [2023-11-29 05:06:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:12,132 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 [2023-11-29 05:06:12,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:12,133 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:12,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:12,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:06:12,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:12,434 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:06:12,434 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:06:12,435 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:06:12,441 INFO L378 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 [2023-11-29 05:06:12,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:06:12,531 INFO L378 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 [2023-11-29 05:06:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:12,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:12,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:12,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283820569] [2023-11-29 05:06:12,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283820569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:12,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:12,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:06:12,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912996524] [2023-11-29 05:06:12,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:12,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:06:12,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:12,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:06:12,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:12,611 INFO L87 Difference]: Start difference. First operand 377 states and 459 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:13,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:13,409 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2023-11-29 05:06:13,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:13,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-11-29 05:06:13,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:13,413 INFO L225 Difference]: With dead ends: 384 [2023-11-29 05:06:13,413 INFO L226 Difference]: Without dead ends: 381 [2023-11-29 05:06:13,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:06:13,414 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 108 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:13,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1049 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:06:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-29 05:06:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 334. [2023-11-29 05:06:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 324 states have (on average 1.2376543209876543) internal successors, (401), 327 states have internal predecessors, (401), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:06:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 413 transitions. [2023-11-29 05:06:13,427 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 413 transitions. Word has length 50 [2023-11-29 05:06:13,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:13,427 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 413 transitions. [2023-11-29 05:06:13,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 413 transitions. [2023-11-29 05:06:13,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 05:06:13,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:13,430 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:13,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:13,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:13,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:13,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash 141247163, now seen corresponding path program 1 times [2023-11-29 05:06:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:13,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060098671] [2023-11-29 05:06:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:13,637 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 [2023-11-29 05:06:13,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:13,638 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:13,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:14,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:06:14,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:06:14,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:14,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:14,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060098671] [2023-11-29 05:06:14,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060098671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:14,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:14,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:06:14,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475439460] [2023-11-29 05:06:14,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:14,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:06:14,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:14,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:06:14,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:14,178 INFO L87 Difference]: Start difference. First operand 334 states and 413 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:14,313 INFO L93 Difference]: Finished difference Result 342 states and 405 transitions. [2023-11-29 05:06:14,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:06:14,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-11-29 05:06:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:14,315 INFO L225 Difference]: With dead ends: 342 [2023-11-29 05:06:14,315 INFO L226 Difference]: Without dead ends: 342 [2023-11-29 05:06:14,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:14,316 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 19 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:14,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 946 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:06:14,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-29 05:06:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 340. [2023-11-29 05:06:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 330 states have (on average 1.1848484848484848) internal successors, (391), 333 states have internal predecessors, (391), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:06:14,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 403 transitions. [2023-11-29 05:06:14,326 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 403 transitions. Word has length 83 [2023-11-29 05:06:14,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:14,326 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 403 transitions. [2023-11-29 05:06:14,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:14,326 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 403 transitions. [2023-11-29 05:06:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 05:06:14,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:14,328 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:14,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 05:06:14,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:14,532 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:14,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:14,532 INFO L85 PathProgramCache]: Analyzing trace with hash 341753709, now seen corresponding path program 1 times [2023-11-29 05:06:14,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:14,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555022697] [2023-11-29 05:06:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:14,533 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 [2023-11-29 05:06:14,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:14,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:14,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:14,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:06:14,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:06:15,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:15,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:15,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555022697] [2023-11-29 05:06:15,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555022697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:15,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:15,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:06:15,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665375411] [2023-11-29 05:06:15,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:15,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:06:15,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:15,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:06:15,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:15,079 INFO L87 Difference]: Start difference. First operand 340 states and 403 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:15,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:15,192 INFO L93 Difference]: Finished difference Result 328 states and 383 transitions. [2023-11-29 05:06:15,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:06:15,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-11-29 05:06:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:15,195 INFO L225 Difference]: With dead ends: 328 [2023-11-29 05:06:15,196 INFO L226 Difference]: Without dead ends: 328 [2023-11-29 05:06:15,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:15,197 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 11 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:15,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 712 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:06:15,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-29 05:06:15,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2023-11-29 05:06:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 318 states have (on average 1.1666666666666667) internal successors, (371), 321 states have internal predecessors, (371), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 05:06:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 383 transitions. [2023-11-29 05:06:15,208 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 383 transitions. Word has length 83 [2023-11-29 05:06:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:15,209 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 383 transitions. [2023-11-29 05:06:15,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 383 transitions. [2023-11-29 05:06:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 05:06:15,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:15,210 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:15,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 05:06:15,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:15,411 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:15,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:15,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2072605327, now seen corresponding path program 1 times [2023-11-29 05:06:15,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:15,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691772774] [2023-11-29 05:06:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:15,412 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 [2023-11-29 05:06:15,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:15,413 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:15,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:15,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:06:15,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:15,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:15,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:15,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:15,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691772774] [2023-11-29 05:06:15,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691772774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:15,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:15,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:06:15,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695733245] [2023-11-29 05:06:15,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:15,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:06:15,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:15,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:06:15,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:06:15,876 INFO L87 Difference]: Start difference. First operand 328 states and 383 transitions. Second operand has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:06:15,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:15,948 INFO L93 Difference]: Finished difference Result 330 states and 386 transitions. [2023-11-29 05:06:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:06:15,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2023-11-29 05:06:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:15,953 INFO L225 Difference]: With dead ends: 330 [2023-11-29 05:06:15,953 INFO L226 Difference]: Without dead ends: 330 [2023-11-29 05:06:15,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:15,954 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:15,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 770 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:06:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-29 05:06:15,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2023-11-29 05:06:15,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 319 states have (on average 1.1692789968652038) internal successors, (373), 323 states have internal predecessors, (373), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:06:15,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 386 transitions. [2023-11-29 05:06:15,967 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 386 transitions. Word has length 83 [2023-11-29 05:06:15,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:15,967 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 386 transitions. [2023-11-29 05:06:15,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 05:06:15,968 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 386 transitions. [2023-11-29 05:06:15,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 05:06:15,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:15,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:15,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Ended with exit code 0 [2023-11-29 05:06:16,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:16,176 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:16,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:16,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2073295583, now seen corresponding path program 1 times [2023-11-29 05:06:16,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:16,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581176527] [2023-11-29 05:06:16,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:16,177 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 [2023-11-29 05:06:16,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:16,178 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:16,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:16,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:06:16,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 05:06:16,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:06:16,789 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 05:06:16,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:16,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581176527] [2023-11-29 05:06:16,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581176527] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:06:16,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:06:16,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 05:06:16,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039824013] [2023-11-29 05:06:16,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:06:16,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:06:16,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:16,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:06:16,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:06:16,791 INFO L87 Difference]: Start difference. First operand 330 states and 386 transitions. Second operand has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:17,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:17,036 INFO L93 Difference]: Finished difference Result 339 states and 400 transitions. [2023-11-29 05:06:17,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:06:17,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 85 [2023-11-29 05:06:17,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:17,039 INFO L225 Difference]: With dead ends: 339 [2023-11-29 05:06:17,039 INFO L226 Difference]: Without dead ends: 339 [2023-11-29 05:06:17,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:06:17,040 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 6 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:17,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1531 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:06:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-11-29 05:06:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 338. [2023-11-29 05:06:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 326 states have (on average 1.1840490797546013) internal successors, (386), 330 states have internal predecessors, (386), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:06:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 399 transitions. [2023-11-29 05:06:17,049 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 399 transitions. Word has length 85 [2023-11-29 05:06:17,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:17,050 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 399 transitions. [2023-11-29 05:06:17,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:17,050 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 399 transitions. [2023-11-29 05:06:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 05:06:17,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:17,051 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:17,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Ended with exit code 0 [2023-11-29 05:06:17,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:17,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:17,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:17,252 INFO L85 PathProgramCache]: Analyzing trace with hash 699693361, now seen corresponding path program 2 times [2023-11-29 05:06:17,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:17,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511098374] [2023-11-29 05:06:17,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:06:17,253 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 [2023-11-29 05:06:17,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:17,254 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:17,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:17,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:06:17,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:06:17,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:06:17,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 05:06:17,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:06:18,164 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 05:06:18,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:18,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511098374] [2023-11-29 05:06:18,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511098374] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:06:18,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:06:18,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 05:06:18,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801366331] [2023-11-29 05:06:18,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:06:18,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:06:18,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:18,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:06:18,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:06:18,167 INFO L87 Difference]: Start difference. First operand 338 states and 399 transitions. Second operand has 14 states, 12 states have (on average 7.666666666666667) internal successors, (92), 14 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:18,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:18,912 INFO L93 Difference]: Finished difference Result 353 states and 421 transitions. [2023-11-29 05:06:18,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:06:18,913 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.666666666666667) internal successors, (92), 14 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 89 [2023-11-29 05:06:18,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:18,916 INFO L225 Difference]: With dead ends: 353 [2023-11-29 05:06:18,916 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 05:06:18,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 05:06:18,917 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 12 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:18,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1535 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:06:18,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 05:06:18,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 347. [2023-11-29 05:06:18,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 335 states have (on average 1.1880597014925374) internal successors, (398), 339 states have internal predecessors, (398), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:06:18,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 411 transitions. [2023-11-29 05:06:18,928 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 411 transitions. Word has length 89 [2023-11-29 05:06:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:18,928 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 411 transitions. [2023-11-29 05:06:18,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.666666666666667) internal successors, (92), 14 states have internal predecessors, (92), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 411 transitions. [2023-11-29 05:06:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 05:06:18,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:18,930 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:18,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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)] Ended with exit code 0 [2023-11-29 05:06:19,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:19,131 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:19,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:19,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1064254107, now seen corresponding path program 3 times [2023-11-29 05:06:19,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:19,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859848760] [2023-11-29 05:06:19,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:06:19,132 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 [2023-11-29 05:06:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:19,133 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:19,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:19,605 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:06:19,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:06:19,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:06:19,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:20,050 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:06:20,051 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:06:20,052 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 05:06:20,057 INFO L378 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 [2023-11-29 05:06:20,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:06:20,167 INFO L378 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 [2023-11-29 05:06:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-29 05:06:20,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:20,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:20,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859848760] [2023-11-29 05:06:20,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859848760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:20,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:20,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:06:20,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59007489] [2023-11-29 05:06:20,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:20,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:06:20,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:20,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:06:20,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:06:20,209 INFO L87 Difference]: Start difference. First operand 347 states and 411 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:20,567 INFO L93 Difference]: Finished difference Result 458 states and 549 transitions. [2023-11-29 05:06:20,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:06:20,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2023-11-29 05:06:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:20,570 INFO L225 Difference]: With dead ends: 458 [2023-11-29 05:06:20,571 INFO L226 Difference]: Without dead ends: 458 [2023-11-29 05:06:20,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:06:20,571 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 374 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:20,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 732 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:06:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-29 05:06:20,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 349. [2023-11-29 05:06:20,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 337 states have (on average 1.1869436201780414) internal successors, (400), 341 states have internal predecessors, (400), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:06:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 413 transitions. [2023-11-29 05:06:20,581 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 413 transitions. Word has length 98 [2023-11-29 05:06:20,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:20,581 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 413 transitions. [2023-11-29 05:06:20,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 413 transitions. [2023-11-29 05:06:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 05:06:20,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:20,584 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:20,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 05:06:20,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:20,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:20,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash 355082047, now seen corresponding path program 1 times [2023-11-29 05:06:20,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:20,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818773884] [2023-11-29 05:06:20,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:20,786 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 [2023-11-29 05:06:20,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:20,787 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:20,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:21,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:06:21,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:06:21,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:06:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 05:06:22,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:22,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818773884] [2023-11-29 05:06:22,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818773884] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:06:22,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:06:22,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 05:06:22,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242082013] [2023-11-29 05:06:22,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:06:22,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 05:06:22,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:22,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 05:06:22,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:06:22,281 INFO L87 Difference]: Start difference. First operand 349 states and 413 transitions. Second operand has 26 states, 24 states have (on average 5.833333333333333) internal successors, (140), 26 states have internal predecessors, (140), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:25,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:25,091 INFO L93 Difference]: Finished difference Result 379 states and 459 transitions. [2023-11-29 05:06:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 05:06:25,096 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.833333333333333) internal successors, (140), 26 states have internal predecessors, (140), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 134 [2023-11-29 05:06:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:25,099 INFO L225 Difference]: With dead ends: 379 [2023-11-29 05:06:25,099 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 05:06:25,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 05:06:25,102 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 24 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:25,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3065 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:06:25,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 05:06:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 367. [2023-11-29 05:06:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 355 states have (on average 1.1943661971830986) internal successors, (424), 359 states have internal predecessors, (424), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:06:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 437 transitions. [2023-11-29 05:06:25,132 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 437 transitions. Word has length 134 [2023-11-29 05:06:25,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:25,133 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 437 transitions. [2023-11-29 05:06:25,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.833333333333333) internal successors, (140), 26 states have internal predecessors, (140), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 437 transitions. [2023-11-29 05:06:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 05:06:25,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:25,135 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:25,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 05:06:25,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:25,336 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:25,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:25,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1810496513, now seen corresponding path program 2 times [2023-11-29 05:06:25,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:25,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794650255] [2023-11-29 05:06:25,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:06:25,337 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 [2023-11-29 05:06:25,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:25,338 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:25,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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 [2023-11-29 05:06:25,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:06:25,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:06:26,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:06:26,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 05:06:26,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:06:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 05:06:28,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:28,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794650255] [2023-11-29 05:06:28,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794650255] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:06:28,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:06:28,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 05:06:28,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470250017] [2023-11-29 05:06:28,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:06:28,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 05:06:28,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:28,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 05:06:28,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 05:06:28,553 INFO L87 Difference]: Start difference. First operand 367 states and 437 transitions. Second operand has 50 states, 48 states have (on average 3.4166666666666665) internal successors, (164), 50 states have internal predecessors, (164), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:39,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:39,070 INFO L93 Difference]: Finished difference Result 425 states and 527 transitions. [2023-11-29 05:06:39,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 05:06:39,071 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.4166666666666665) internal successors, (164), 50 states have internal predecessors, (164), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 152 [2023-11-29 05:06:39,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:39,074 INFO L225 Difference]: With dead ends: 425 [2023-11-29 05:06:39,074 INFO L226 Difference]: Without dead ends: 423 [2023-11-29 05:06:39,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 05:06:39,079 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 48 mSDsluCounter, 6121 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6379 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:39,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6379 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 05:06:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-11-29 05:06:39,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 401. [2023-11-29 05:06:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 389 states have (on average 1.2082262210796915) internal successors, (470), 393 states have internal predecessors, (470), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-29 05:06:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 483 transitions. [2023-11-29 05:06:39,090 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 483 transitions. Word has length 152 [2023-11-29 05:06:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:39,091 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 483 transitions. [2023-11-29 05:06:39,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.4166666666666665) internal successors, (164), 50 states have internal predecessors, (164), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 05:06:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 483 transitions. [2023-11-29 05:06:39,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 05:06:39,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:39,093 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:39,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 05:06:39,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:39,294 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:39,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:39,294 INFO L85 PathProgramCache]: Analyzing trace with hash -885336897, now seen corresponding path program 3 times [2023-11-29 05:06:39,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:39,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814876755] [2023-11-29 05:06:39,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:06:39,295 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 [2023-11-29 05:06:39,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:39,296 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:39,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 05:06:39,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:06:39,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:06:39,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:06:39,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-29 05:06:40,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:06:40,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:40,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814876755] [2023-11-29 05:06:40,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814876755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:40,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:40,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:06:40,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990330668] [2023-11-29 05:06:40,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:40,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:06:40,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:40,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:06:40,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:06:40,199 INFO L87 Difference]: Start difference. First operand 401 states and 483 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:44,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:06:48,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:06:51,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 05:06:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:51,853 INFO L93 Difference]: Finished difference Result 563 states and 685 transitions. [2023-11-29 05:06:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:06:51,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 186 [2023-11-29 05:06:51,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:51,858 INFO L225 Difference]: With dead ends: 563 [2023-11-29 05:06:51,858 INFO L226 Difference]: Without dead ends: 563 [2023-11-29 05:06:51,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:06:51,859 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 504 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:51,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 550 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 141 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2023-11-29 05:06:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-29 05:06:51,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 491. [2023-11-29 05:06:51,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 477 states have (on average 1.2033542976939204) internal successors, (574), 482 states have internal predecessors, (574), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 05:06:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 591 transitions. [2023-11-29 05:06:51,867 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 591 transitions. Word has length 186 [2023-11-29 05:06:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:51,868 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 591 transitions. [2023-11-29 05:06:51,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:06:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 591 transitions. [2023-11-29 05:06:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 05:06:51,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:51,871 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:51,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 05:06:52,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:06:52,072 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:06:52,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 652709897, now seen corresponding path program 1 times [2023-11-29 05:06:52,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:06:52,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351819374] [2023-11-29 05:06:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:52,073 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 [2023-11-29 05:06:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:06:52,074 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:06:52,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 05:06:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:53,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 05:06:53,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:06:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:06:54,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:06:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:06:56,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:06:56,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351819374] [2023-11-29 05:06:56,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351819374] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:06:56,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:06:56,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 05:06:56,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253295463] [2023-11-29 05:06:56,174 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:06:56,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 05:06:56,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:06:56,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 05:06:56,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 05:06:56,177 INFO L87 Difference]: Start difference. First operand 491 states and 591 transitions. Second operand has 52 states, 50 states have (on average 3.42) internal successors, (171), 52 states have internal predecessors, (171), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:07:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:06,289 INFO L93 Difference]: Finished difference Result 540 states and 665 transitions. [2023-11-29 05:07:06,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 05:07:06,290 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.42) internal successors, (171), 52 states have internal predecessors, (171), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 194 [2023-11-29 05:07:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:06,293 INFO L225 Difference]: With dead ends: 540 [2023-11-29 05:07:06,293 INFO L226 Difference]: Without dead ends: 540 [2023-11-29 05:07:06,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3563 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 05:07:06,297 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 55 mSDsluCounter, 6098 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 6355 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:06,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 6355 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 05:07:06,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-29 05:07:06,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 516. [2023-11-29 05:07:06,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 502 states have (on average 1.2430278884462151) internal successors, (624), 507 states have internal predecessors, (624), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 05:07:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 641 transitions. [2023-11-29 05:07:06,307 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 641 transitions. Word has length 194 [2023-11-29 05:07:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:06,307 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 641 transitions. [2023-11-29 05:07:06,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.42) internal successors, (171), 52 states have internal predecessors, (171), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:07:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 641 transitions. [2023-11-29 05:07:06,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 05:07:06,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:06,309 INFO L195 NwaCegarLoop]: trace histogram [92, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:06,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-29 05:07:06,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:07:06,509 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:07:06,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:06,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1437688287, now seen corresponding path program 2 times [2023-11-29 05:07:06,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:07:06,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183808583] [2023-11-29 05:07:06,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:07:06,511 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 [2023-11-29 05:07:06,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:07:06,512 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:07:06,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 05:07:08,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:07:08,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:07:08,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 1559 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 05:07:08,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:07:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:07:10,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:07:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:07:18,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:07:18,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183808583] [2023-11-29 05:07:18,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183808583] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:07:18,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:07:18,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 05:07:18,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389999264] [2023-11-29 05:07:18,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:07:18,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 05:07:18,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:07:18,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 05:07:18,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 05:07:18,872 INFO L87 Difference]: Start difference. First operand 516 states and 641 transitions. Second operand has 102 states, 100 states have (on average 2.21) internal successors, (221), 102 states have internal predecessors, (221), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:08:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:13,393 INFO L93 Difference]: Finished difference Result 623 states and 801 transitions. [2023-11-29 05:08:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 05:08:13,395 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.21) internal successors, (221), 102 states have internal predecessors, (221), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 219 [2023-11-29 05:08:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:13,398 INFO L225 Difference]: With dead ends: 623 [2023-11-29 05:08:13,398 INFO L226 Difference]: Without dead ends: 623 [2023-11-29 05:08:13,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 48.6s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 05:08:13,404 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 115 mSDsluCounter, 12703 mSDsCounter, 0 mSdLazyCounter, 8053 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 12960 SdHoareTripleChecker+Invalid, 8147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 8053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:13,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 12960 Invalid, 8147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 8053 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2023-11-29 05:08:13,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-11-29 05:08:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 570. [2023-11-29 05:08:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 556 states have (on average 1.314748201438849) internal successors, (731), 561 states have internal predecessors, (731), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 05:08:13,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 748 transitions. [2023-11-29 05:08:13,423 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 748 transitions. Word has length 219 [2023-11-29 05:08:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:13,424 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 748 transitions. [2023-11-29 05:08:13,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.21) internal successors, (221), 102 states have internal predecessors, (221), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:08:13,424 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 748 transitions. [2023-11-29 05:08:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 05:08:13,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:08:13,427 INFO L195 NwaCegarLoop]: trace histogram [142, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:08:13,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 05:08:13,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:08:13,632 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:08:13,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:08:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash 934190367, now seen corresponding path program 3 times [2023-11-29 05:08:13,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:08:13,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297237620] [2023-11-29 05:08:13,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:08:13,633 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 [2023-11-29 05:08:13,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:08:13,634 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:08:13,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 05:09:11,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2023-11-29 05:09:11,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:09:11,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 2109 conjuncts, 102 conjunts are in the unsatisfiable core [2023-11-29 05:09:11,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:09:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 4458 proven. 4851 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:09:20,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:10:06,678 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 4458 proven. 4851 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:10:06,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:10:06,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297237620] [2023-11-29 05:10:06,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297237620] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:10:06,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:10:06,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 05:10:06,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232585501] [2023-11-29 05:10:06,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:10:06,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 05:10:06,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:10:06,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 05:10:06,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 05:10:06,689 INFO L87 Difference]: Start difference. First operand 570 states and 748 transitions. Second operand has 202 states, 200 states have (on average 1.605) internal successors, (321), 202 states have internal predecessors, (321), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:16:06,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:16:06,506 INFO L93 Difference]: Finished difference Result 773 states and 1050 transitions. [2023-11-29 05:16:06,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-29 05:16:06,508 INFO L78 Accepts]: Start accepts. Automaton has has 202 states, 200 states have (on average 1.605) internal successors, (321), 202 states have internal predecessors, (321), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 269 [2023-11-29 05:16:06,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:16:06,512 INFO L225 Difference]: With dead ends: 773 [2023-11-29 05:16:06,512 INFO L226 Difference]: Without dead ends: 772 [2023-11-29 05:16:06,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 398 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29302 ImplicationChecksByTransitivity, 336.4s TimeCoverageRelationStatistics Valid=50398, Invalid=109202, Unknown=0, NotChecked=0, Total=159600 [2023-11-29 05:16:06,523 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 157 mSDsluCounter, 25810 mSDsCounter, 0 mSdLazyCounter, 31318 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 26066 SdHoareTripleChecker+Invalid, 31507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 31318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:16:06,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 26066 Invalid, 31507 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [189 Valid, 31318 Invalid, 0 Unknown, 0 Unchecked, 69.5s Time] [2023-11-29 05:16:06,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2023-11-29 05:16:06,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 670. [2023-11-29 05:16:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 656 states have (on average 1.4176829268292683) internal successors, (930), 661 states have internal predecessors, (930), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 05:16:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 947 transitions. [2023-11-29 05:16:06,548 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 947 transitions. Word has length 269 [2023-11-29 05:16:06,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:16:06,548 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 947 transitions. [2023-11-29 05:16:06,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 200 states have (on average 1.605) internal successors, (321), 202 states have internal predecessors, (321), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:16:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 947 transitions. [2023-11-29 05:16:06,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-29 05:16:06,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:16:06,551 INFO L195 NwaCegarLoop]: trace histogram [242, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:16:06,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-29 05:16:06,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:16:06,752 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 05:16:06,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:16:06,752 INFO L85 PathProgramCache]: Analyzing trace with hash 264577951, now seen corresponding path program 4 times [2023-11-29 05:16:06,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:16:06,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881172722] [2023-11-29 05:16:06,754 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:16:06,754 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 [2023-11-29 05:16:06,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:16:06,755 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -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) [2023-11-29 05:16:06,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cabcf8e-3c74-4b39-bb76-47e8bdd768ee/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 05:16:09,702 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:16:09,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:16:09,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 3209 conjuncts, 201 conjunts are in the unsatisfiable core [2023-11-29 05:16:09,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:16:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 29650 backedges. 8958 proven. 19701 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:16:42,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:17:10,743 WARN L293 SmtUtils]: Spent 28.33s on a formula simplification. DAG size of input: 602 DAG size of output: 601 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 05:19:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 29650 backedges. 8958 proven. 19701 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 05:19:06,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:19:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881172722] [2023-11-29 05:19:06,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881172722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:19:06,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:19:06,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [202, 202] total 402 [2023-11-29 05:19:06,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763009711] [2023-11-29 05:19:06,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:19:06,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2023-11-29 05:19:06,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:19:06,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2023-11-29 05:19:06,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40710, Invalid=120492, Unknown=0, NotChecked=0, Total=161202 [2023-11-29 05:19:06,874 INFO L87 Difference]: Start difference. First operand 670 states and 947 transitions. Second operand has 402 states, 400 states have (on average 1.3025) internal successors, (521), 402 states have internal predecessors, (521), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)