./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.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_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme --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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:07,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:07,455 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-26 10:46:07,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:07,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:07,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:07,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:07,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:07,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:46:07,511 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:46:07,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:07,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:07,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:07,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:07,516 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:07,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:07,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:07,518 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:46:07,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:07,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:46:07,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:07,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:07,520 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 10:46:07,520 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 10:46:07,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:07,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:07,522 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:46:07,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:07,523 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:46:07,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:07,524 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:07,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:07,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:07,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:46:07,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:07,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:07,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:07,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:07,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:07,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:46:07,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:07,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:07,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:07,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:07,529 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_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2023-11-26 10:46:07,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:07,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:07,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:07,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:07,915 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:07,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-26 10:46:10,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:11,399 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:11,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-26 10:46:11,420 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data/ab62d04b0/5f977c88eb6f4312a04dde3e9b28cf7c/FLAGce9a44650 [2023-11-26 10:46:11,567 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data/ab62d04b0/5f977c88eb6f4312a04dde3e9b28cf7c [2023-11-26 10:46:11,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:11,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:11,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:11,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:11,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:11,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:11" (1/1) ... [2023-11-26 10:46:11,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c8e7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:11, skipping insertion in model container [2023-11-26 10:46:11,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:11" (1/1) ... [2023-11-26 10:46:11,693 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:12,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:12,433 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) [2023-11-26 10:46:12,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f6946f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:12, skipping insertion in model container [2023-11-26 10:46:12,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:12,435 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 10:46:12,440 INFO L158 Benchmark]: Toolchain (without parser) took 864.65ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 88.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:46:12,441 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 111.1MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:46:12,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 856.68ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 88.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:46:12,444 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 111.1MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 856.68ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 88.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme --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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:15,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:15,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-26 10:46:15,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:15,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:15,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:15,271 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:15,272 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:15,273 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:46:15,273 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:46:15,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:15,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:15,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:15,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:15,278 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:15,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:15,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:15,280 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:46:15,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:15,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:46:15,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:15,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:15,284 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 10:46:15,284 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 10:46:15,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:15,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:15,286 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:46:15,287 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:46:15,288 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:46:15,288 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:15,289 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:46:15,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:15,291 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:15,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:15,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:15,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:46:15,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:15,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:15,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:15,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:15,300 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:46:15,301 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:46:15,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:15,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:15,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:15,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:15,303 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:46:15,303 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_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2023-11-26 10:46:15,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:15,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:15,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:15,807 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:15,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:15,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-26 10:46:19,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:19,588 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:19,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2023-11-26 10:46:19,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data/fbc511bac/ebf7fcdc034b45d4ad18303ac00e3c04/FLAG03853723e [2023-11-26 10:46:19,652 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/data/fbc511bac/ebf7fcdc034b45d4ad18303ac00e3c04 [2023-11-26 10:46:19,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:19,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:19,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:19,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:19,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:19,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:19" (1/1) ... [2023-11-26 10:46:19,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4230c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:19, skipping insertion in model container [2023-11-26 10:46:19,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:19" (1/1) ... [2023-11-26 10:46:19,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:20,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:20,570 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 10:46:20,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:20,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:20,695 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:46:20,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:20,859 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:20,867 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:46:20,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20 WrapperNode [2023-11-26 10:46:20,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:20,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:20,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:46:20,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:46:20,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:20,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,007 INFO L138 Inliner]: procedures = 211, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 887 [2023-11-26 10:46:21,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:21,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:46:21,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:46:21,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:46:21,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,029 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,098 INFO L175 MemorySlicer]: Split 213 memory accesses to 4 slices as follows [2, 172, 5, 34]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 42, 1, 4]. [2023-11-26 10:46:21,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:46:21,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:46:21,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:46:21,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:46:21,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (1/1) ... [2023-11-26 10:46:21,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:21,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:21,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:21,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:46:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-26 10:46:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-26 10:46:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-26 10:46:21,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-26 10:46:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-26 10:46:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-26 10:46:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 10:46:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 10:46:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 10:46:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 10:46:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 10:46:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 10:46:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 10:46:21,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 10:46:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 10:46:21,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 10:46:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 10:46:21,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 10:46:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:46:21,285 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-26 10:46:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 10:46:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 10:46:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 10:46:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 10:46:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:46:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 10:46:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 10:46:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 10:46:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 10:46:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:46:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 10:46:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 10:46:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 10:46:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 10:46:21,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 10:46:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:46:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:46:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 10:46:21,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 10:46:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 10:46:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 10:46:21,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:46:21,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:46:21,574 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:46:21,576 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:30,946 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:30,995 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:30,996 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-26 10:46:30,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:30 BoogieIcfgContainer [2023-11-26 10:46:30,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:31,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:46:31,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:46:31,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:46:31,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:19" (1/3) ... [2023-11-26 10:46:31,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6d21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:31, skipping insertion in model container [2023-11-26 10:46:31,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:20" (2/3) ... [2023-11-26 10:46:31,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6d21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:31, skipping insertion in model container [2023-11-26 10:46:31,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:30" (3/3) ... [2023-11-26 10:46:31,010 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-1.i [2023-11-26 10:46:31,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:46:31,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 10:46:31,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:46:31,102 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;@36f5c408, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:46:31,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 10:46:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 166 states have (on average 1.680722891566265) internal successors, (279), 175 states have internal predecessors, (279), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 10:46:31,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:46:31,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:31,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 10:46:31,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:31,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1909827479, now seen corresponding path program 1 times [2023-11-26 10:46:31,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:31,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190866020] [2023-11-26 10:46:31,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:31,143 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 [2023-11-26 10:46:31,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:31,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:31,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:31,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:46:31,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:31,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:31,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:31,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190866020] [2023-11-26 10:46:31,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190866020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:31,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:31,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:31,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158337123] [2023-11-26 10:46:31,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:31,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:46:31,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:31,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:46:31,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:46:31,453 INFO L87 Difference]: Start difference. First operand has 182 states, 166 states have (on average 1.680722891566265) internal successors, (279), 175 states have internal predecessors, (279), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-26 10:46:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:31,510 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2023-11-26 10:46:31,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:46:31,512 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-26 10:46:31,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:31,523 INFO L225 Difference]: With dead ends: 180 [2023-11-26 10:46:31,523 INFO L226 Difference]: Without dead ends: 179 [2023-11-26 10:46:31,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:46:31,529 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:31,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:46:31,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-26 10:46:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-26 10:46:31,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 165 states have (on average 1.3151515151515152) internal successors, (217), 172 states have internal predecessors, (217), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 10:46:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2023-11-26 10:46:31,580 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 6 [2023-11-26 10:46:31,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:31,580 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2023-11-26 10:46:31,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-26 10:46:31,581 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2023-11-26 10:46:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 10:46:31,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:31,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:31,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:31,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:31,785 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:31,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:31,786 INFO L85 PathProgramCache]: Analyzing trace with hash -91055009, now seen corresponding path program 1 times [2023-11-26 10:46:31,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:31,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274046207] [2023-11-26 10:46:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:31,787 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 [2023-11-26 10:46:31,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:31,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:31,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:32,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:46:32,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:32,102 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-26 10:46:32,103 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-26 10:46:32,104 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-26 10:46:32,114 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 [2023-11-26 10:46:32,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:46:32,203 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 [2023-11-26 10:46:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:32,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:32,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:32,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274046207] [2023-11-26 10:46:32,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274046207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:32,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:32,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:46:32,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797511696] [2023-11-26 10:46:32,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:32,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:46:32,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:32,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:46:32,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:46:32,228 INFO L87 Difference]: Start difference. First operand 179 states and 235 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:33,139 INFO L93 Difference]: Finished difference Result 343 states and 456 transitions. [2023-11-26 10:46:33,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:46:33,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-26 10:46:33,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:33,144 INFO L225 Difference]: With dead ends: 343 [2023-11-26 10:46:33,144 INFO L226 Difference]: Without dead ends: 343 [2023-11-26 10:46:33,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:33,146 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 201 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:33,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 684 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 10:46:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-26 10:46:33,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 181. [2023-11-26 10:46:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 167 states have (on average 1.311377245508982) internal successors, (219), 174 states have internal predecessors, (219), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 10:46:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 237 transitions. [2023-11-26 10:46:33,168 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 237 transitions. Word has length 8 [2023-11-26 10:46:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:33,169 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 237 transitions. [2023-11-26 10:46:33,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 237 transitions. [2023-11-26 10:46:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 10:46:33,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:33,172 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:46:33,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:33,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:33,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:33,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1135081233, now seen corresponding path program 1 times [2023-11-26 10:46:33,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:33,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326795058] [2023-11-26 10:46:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:33,379 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 [2023-11-26 10:46:33,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:33,380 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:33,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:33,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:33,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:33,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:33,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326795058] [2023-11-26 10:46:33,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326795058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:33,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:33,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:46:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188509637] [2023-11-26 10:46:33,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:33,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:46:33,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:33,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:46:33,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:46:33,929 INFO L87 Difference]: Start difference. First operand 181 states and 237 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-26 10:46:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:34,093 INFO L93 Difference]: Finished difference Result 185 states and 233 transitions. [2023-11-26 10:46:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:46:34,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2023-11-26 10:46:34,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:34,095 INFO L225 Difference]: With dead ends: 185 [2023-11-26 10:46:34,096 INFO L226 Difference]: Without dead ends: 185 [2023-11-26 10:46:34,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:34,097 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:34,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 585 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-26 10:46:34,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2023-11-26 10:46:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 170 states have (on average 1.2588235294117647) internal successors, (214), 177 states have internal predecessors, (214), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 10:46:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 232 transitions. [2023-11-26 10:46:34,111 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 232 transitions. Word has length 64 [2023-11-26 10:46:34,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:34,111 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 232 transitions. [2023-11-26 10:46:34,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-26 10:46:34,112 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 232 transitions. [2023-11-26 10:46:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 10:46:34,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:34,115 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-26 10:46:34,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:34,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:34,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:34,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:34,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1088686587, now seen corresponding path program 1 times [2023-11-26 10:46:34,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:34,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259312676] [2023-11-26 10:46:34,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:34,324 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 [2023-11-26 10:46:34,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:34,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:34,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:34,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:34,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:35,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:35,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:35,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259312676] [2023-11-26 10:46:35,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259312676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:35,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:35,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:35,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415590171] [2023-11-26 10:46:35,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:35,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:35,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:35,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:35,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:35,150 INFO L87 Difference]: Start difference. First operand 184 states and 232 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-11-26 10:46:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:35,901 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2023-11-26 10:46:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2023-11-26 10:46:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:35,904 INFO L225 Difference]: With dead ends: 285 [2023-11-26 10:46:35,904 INFO L226 Difference]: Without dead ends: 285 [2023-11-26 10:46:35,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:35,906 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 81 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:35,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 474 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:46:35,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-26 10:46:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 281. [2023-11-26 10:46:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 262 states have (on average 1.2557251908396947) internal successors, (329), 274 states have internal predecessors, (329), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 10:46:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 357 transitions. [2023-11-26 10:46:35,923 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 357 transitions. Word has length 64 [2023-11-26 10:46:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:35,924 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 357 transitions. [2023-11-26 10:46:35,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-11-26 10:46:35,924 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 357 transitions. [2023-11-26 10:46:35,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 10:46:35,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:35,928 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] [2023-11-26 10:46:35,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:36,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:36,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:36,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:36,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1102114320, now seen corresponding path program 1 times [2023-11-26 10:46:36,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:36,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033325656] [2023-11-26 10:46:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:36,144 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 [2023-11-26 10:46:36,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:36,145 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:36,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:36,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:36,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:36,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:36,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033325656] [2023-11-26 10:46:36,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033325656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:36,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:36,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:46:36,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739492493] [2023-11-26 10:46:36,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:36,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:46:36,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:36,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:46:36,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:46:36,782 INFO L87 Difference]: Start difference. First operand 281 states and 357 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:36,881 INFO L93 Difference]: Finished difference Result 283 states and 360 transitions. [2023-11-26 10:46:36,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:46:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-26 10:46:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:36,885 INFO L225 Difference]: With dead ends: 283 [2023-11-26 10:46:36,885 INFO L226 Difference]: Without dead ends: 283 [2023-11-26 10:46:36,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:36,887 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:36,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 653 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:36,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-26 10:46:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-11-26 10:46:36,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 263 states have (on average 1.258555133079848) internal successors, (331), 276 states have internal predecessors, (331), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 10:46:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2023-11-26 10:46:36,900 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 77 [2023-11-26 10:46:36,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:36,901 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2023-11-26 10:46:36,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:46:36,901 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2023-11-26 10:46:36,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-26 10:46:36,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:36,905 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] [2023-11-26 10:46:36,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:37,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:37,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:37,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:37,114 INFO L85 PathProgramCache]: Analyzing trace with hash -986881550, now seen corresponding path program 1 times [2023-11-26 10:46:37,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:37,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610291253] [2023-11-26 10:46:37,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:37,117 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 [2023-11-26 10:46:37,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:37,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:37,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:37,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:46:37,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:46:37,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 10:46:37,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:37,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610291253] [2023-11-26 10:46:37,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610291253] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:37,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:46:37,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-26 10:46:37,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563668892] [2023-11-26 10:46:37,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:37,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:46:37,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:46:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:46:37,982 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:46:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:38,251 INFO L93 Difference]: Finished difference Result 292 states and 374 transitions. [2023-11-26 10:46:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:46:38,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2023-11-26 10:46:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:38,255 INFO L225 Difference]: With dead ends: 292 [2023-11-26 10:46:38,255 INFO L226 Difference]: Without dead ends: 292 [2023-11-26 10:46:38,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:46:38,256 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:38,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 653 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:46:38,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-26 10:46:38,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 291. [2023-11-26 10:46:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 270 states have (on average 1.2740740740740741) internal successors, (344), 283 states have internal predecessors, (344), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 10:46:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 373 transitions. [2023-11-26 10:46:38,268 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 373 transitions. Word has length 79 [2023-11-26 10:46:38,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:38,269 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 373 transitions. [2023-11-26 10:46:38,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 10:46:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 373 transitions. [2023-11-26 10:46:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-26 10:46:38,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:38,271 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] [2023-11-26 10:46:38,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:38,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:38,480 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:38,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:38,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1294736112, now seen corresponding path program 2 times [2023-11-26 10:46:38,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:38,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356419084] [2023-11-26 10:46:38,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:46:38,482 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 [2023-11-26 10:46:38,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:38,484 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:38,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:38,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:46:38,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:46:38,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:46:38,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:38,926 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-26 10:46:38,927 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-26 10:46:38,931 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-26 10:46:38,936 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 [2023-11-26 10:46:39,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:46:39,012 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 [2023-11-26 10:46:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-26 10:46:39,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:39,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356419084] [2023-11-26 10:46:39,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356419084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:39,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:39,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:46:39,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667155033] [2023-11-26 10:46:39,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:39,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:46:39,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:39,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:46:39,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:46:39,038 INFO L87 Difference]: Start difference. First operand 291 states and 373 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:46:39,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:39,838 INFO L93 Difference]: Finished difference Result 427 states and 564 transitions. [2023-11-26 10:46:39,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:46:39,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-11-26 10:46:39,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:39,843 INFO L225 Difference]: With dead ends: 427 [2023-11-26 10:46:39,843 INFO L226 Difference]: Without dead ends: 427 [2023-11-26 10:46:39,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:39,844 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 186 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:39,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 655 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 10:46:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-26 10:46:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 293. [2023-11-26 10:46:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 272 states have (on average 1.2720588235294117) internal successors, (346), 285 states have internal predecessors, (346), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 10:46:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 375 transitions. [2023-11-26 10:46:39,858 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 375 transitions. Word has length 83 [2023-11-26 10:46:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:39,859 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 375 transitions. [2023-11-26 10:46:39,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 10:46:39,859 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 375 transitions. [2023-11-26 10:46:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-26 10:46:39,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:39,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:39,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:40,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:40,066 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:40,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:40,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1261222842, now seen corresponding path program 1 times [2023-11-26 10:46:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486011784] [2023-11-26 10:46:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:40,067 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 [2023-11-26 10:46:40,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:40,073 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:40,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:40,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 10:46:40,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 10:46:40,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:46:41,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:41,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486011784] [2023-11-26 10:46:41,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486011784] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:41,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:46:41,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-26 10:46:41,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505927748] [2023-11-26 10:46:41,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:41,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 10:46:41,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:41,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 10:46:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:46:41,205 INFO L87 Difference]: Start difference. First operand 293 states and 375 transitions. Second operand has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2023-11-26 10:46:42,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:42,257 INFO L93 Difference]: Finished difference Result 308 states and 397 transitions. [2023-11-26 10:46:42,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 10:46:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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 122 [2023-11-26 10:46:42,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:42,261 INFO L225 Difference]: With dead ends: 308 [2023-11-26 10:46:42,261 INFO L226 Difference]: Without dead ends: 306 [2023-11-26 10:46:42,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-26 10:46:42,262 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 12 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:42,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1945 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 10:46:42,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-11-26 10:46:42,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 302. [2023-11-26 10:46:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 281 states have (on average 1.2740213523131672) internal successors, (358), 294 states have internal predecessors, (358), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 10:46:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 387 transitions. [2023-11-26 10:46:42,274 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 387 transitions. Word has length 122 [2023-11-26 10:46:42,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:42,275 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 387 transitions. [2023-11-26 10:46:42,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 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) [2023-11-26 10:46:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 387 transitions. [2023-11-26 10:46:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-26 10:46:42,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:42,277 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] [2023-11-26 10:46:42,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:42,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:42,489 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:42,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:42,489 INFO L85 PathProgramCache]: Analyzing trace with hash 661505761, now seen corresponding path program 2 times [2023-11-26 10:46:42,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914393759] [2023-11-26 10:46:42,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:46:42,491 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 [2023-11-26 10:46:42,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:42,492 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:42,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:42,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:46:42,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:46:42,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:46:42,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-26 10:46:42,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:46:42,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:42,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914393759] [2023-11-26 10:46:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914393759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:42,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:42,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 10:46:42,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305727054] [2023-11-26 10:46:42,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:42,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:46:42,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:42,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:46:42,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:46:42,973 INFO L87 Difference]: Start difference. First operand 302 states and 387 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2023-11-26 10:46:43,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:43,118 INFO L93 Difference]: Finished difference Result 310 states and 379 transitions. [2023-11-26 10:46:43,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:46:43,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 131 [2023-11-26 10:46:43,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:43,137 INFO L225 Difference]: With dead ends: 310 [2023-11-26 10:46:43,138 INFO L226 Difference]: Without dead ends: 310 [2023-11-26 10:46:43,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:46:43,141 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 36 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:43,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 552 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:46:43,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-26 10:46:43,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 308. [2023-11-26 10:46:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 287 states have (on average 1.2125435540069687) internal successors, (348), 300 states have internal predecessors, (348), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 10:46:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 377 transitions. [2023-11-26 10:46:43,158 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 377 transitions. Word has length 131 [2023-11-26 10:46:43,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:43,158 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 377 transitions. [2023-11-26 10:46:43,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2023-11-26 10:46:43,159 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 377 transitions. [2023-11-26 10:46:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-26 10:46:43,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:43,164 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] [2023-11-26 10:46:43,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:43,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:43,368 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:43,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:43,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1759308245, now seen corresponding path program 1 times [2023-11-26 10:46:43,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:43,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232679407] [2023-11-26 10:46:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:43,370 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 [2023-11-26 10:46:43,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:43,371 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:43,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:44,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:46:44,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-26 10:46:44,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:45,166 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 10:46:45,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:45,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232679407] [2023-11-26 10:46:45,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232679407] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:45,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:46:45,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-26 10:46:45,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629119217] [2023-11-26 10:46:45,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:45,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-26 10:46:45,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:45,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-26 10:46:45,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-26 10:46:45,170 INFO L87 Difference]: Start difference. First operand 308 states and 377 transitions. Second operand has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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) [2023-11-26 10:46:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:46:48,871 INFO L93 Difference]: Finished difference Result 338 states and 423 transitions. [2023-11-26 10:46:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-26 10:46:48,876 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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 131 [2023-11-26 10:46:48,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:46:48,880 INFO L225 Difference]: With dead ends: 338 [2023-11-26 10:46:48,881 INFO L226 Difference]: Without dead ends: 336 [2023-11-26 10:46:48,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-26 10:46:48,885 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 24 mSDsluCounter, 3073 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:46:48,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3281 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-26 10:46:48,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-26 10:46:48,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 326. [2023-11-26 10:46:48,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.219672131147541) internal successors, (372), 318 states have internal predecessors, (372), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-26 10:46:48,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 401 transitions. [2023-11-26 10:46:48,899 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 401 transitions. Word has length 131 [2023-11-26 10:46:48,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:46:48,900 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 401 transitions. [2023-11-26 10:46:48,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 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) [2023-11-26 10:46:48,901 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 401 transitions. [2023-11-26 10:46:48,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-26 10:46:48,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:46:48,903 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] [2023-11-26 10:46:48,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:49,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 10:46:49,111 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 10:46:49,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1348464523, now seen corresponding path program 2 times [2023-11-26 10:46:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:46:49,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179108700] [2023-11-26 10:46:49,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:46:49,113 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 [2023-11-26 10:46:49,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:46:49,114 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 10:46:49,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_587bca81-daed-4de7-9b94-d6fa0ed46c59/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 10:46:50,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 10:46:50,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:46:50,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-26 10:46:50,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:46:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-26 10:46:50,875 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:46:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-26 10:46:53,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:46:53,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179108700] [2023-11-26 10:46:53,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179108700] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:46:53,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:46:53,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-26 10:46:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172935580] [2023-11-26 10:46:53,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:46:53,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-26 10:46:53,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:46:53,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-26 10:46:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-26 10:46:53,764 INFO L87 Difference]: Start difference. First operand 326 states and 401 transitions. Second operand has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 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)