./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:42:50,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:42:50,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 01:42:50,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:42:50,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:42:50,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:42:50,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:42:50,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:42:50,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:42:50,380 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:42:50,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:42:50,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:42:50,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:42:50,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:42:50,383 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:42:50,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:42:50,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:42:50,385 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:42:50,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:42:50,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:42:50,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:42:50,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:42:50,387 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 01:42:50,388 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 01:42:50,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:42:50,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:42:50,389 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:42:50,389 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:42:50,390 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:42:50,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:42:50,390 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:42:50,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:42:50,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:42:50,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:42:50,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:42:50,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:42:50,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:42:50,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:42:50,393 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:42:50,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:42:50,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:42:50,393 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:42:50,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:42:50,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:42:50,394 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_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2023-11-29 01:42:50,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:42:50,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:42:50,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:42:50,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:42:50,643 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:42:50,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-29 01:42:53,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:42:53,670 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:42:53,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-29 01:42:53,692 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data/d91e0f6e7/2f6ec1b178b84414bee67e74cc059710/FLAG5caa7021c [2023-11-29 01:42:53,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data/d91e0f6e7/2f6ec1b178b84414bee67e74cc059710 [2023-11-29 01:42:53,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:42:53,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:42:53,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:42:53,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:42:53,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:42:53,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:53" (1/1) ... [2023-11-29 01:42:53,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214fa052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:53, skipping insertion in model container [2023-11-29 01:42:53,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:53" (1/1) ... [2023-11-29 01:42:53,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:42:54,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:42:54,445 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 01:42:54,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@66690c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:54, skipping insertion in model container [2023-11-29 01:42:54,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:42:54,447 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 01:42:54,449 INFO L158 Benchmark]: Toolchain (without parser) took 738.25ms. Allocated memory is still 138.4MB. Free memory was 103.9MB in the beginning and 69.6MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 01:42:54,449 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:42:54,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.94ms. Allocated memory is still 138.4MB. Free memory was 103.5MB in the beginning and 69.6MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-29 01:42:54,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.94ms. Allocated memory is still 138.4MB. Free memory was 103.5MB in the beginning and 69.6MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:42:56,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:42:56,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 01:42:56,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:42:56,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:42:56,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:42:56,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:42:56,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:42:56,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:42:56,281 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:42:56,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:42:56,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:42:56,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:42:56,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:42:56,284 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:42:56,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:42:56,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:42:56,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:42:56,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:42:56,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:42:56,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:42:56,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:42:56,288 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 01:42:56,289 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 01:42:56,289 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:42:56,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:42:56,290 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:42:56,291 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:42:56,291 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:42:56,291 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:42:56,292 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:42:56,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:42:56,293 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:42:56,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:42:56,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:42:56,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:42:56,294 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:42:56,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:42:56,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:42:56,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:42:56,295 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:42:56,295 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:42:56,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:42:56,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:42:56,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:42:56,296 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:42:56,296 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:42:56,296 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_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2023-11-29 01:42:56,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:42:56,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:42:56,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:42:56,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:42:56,609 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:42:56,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-29 01:42:59,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:42:59,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:42:59,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-29 01:42:59,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data/a120f7aac/9b876ae146d841f7898e10c650db9904/FLAGbac5d916b [2023-11-29 01:42:59,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/data/a120f7aac/9b876ae146d841f7898e10c650db9904 [2023-11-29 01:42:59,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:42:59,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:42:59,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:42:59,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:42:59,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:42:59,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:59" (1/1) ... [2023-11-29 01:42:59,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5d02cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:59, skipping insertion in model container [2023-11-29 01:42:59,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:59" (1/1) ... [2023-11-29 01:42:59,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:43:00,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:43:00,432 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 01:43:00,463 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:43:00,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:43:00,622 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:43:00,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:43:00,778 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:43:00,786 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:43:00,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00 WrapperNode [2023-11-29 01:43:00,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:43:00,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:43:00,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:43:00,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:43:00,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:00,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:00,934 INFO L138 Inliner]: procedures = 180, calls = 783, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3025 [2023-11-29 01:43:00,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:43:00,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:43:00,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:43:00,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:43:00,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:00,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:00,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,040 INFO L175 MemorySlicer]: Split 261 memory accesses to 4 slices as follows [2, 220, 5, 34]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 50, 1, 4]. [2023-11-29 01:43:01,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:43:01,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:43:01,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:43:01,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:43:01,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (1/1) ... [2023-11-29 01:43:01,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:43:01,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:01,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:43:01,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:43:01,249 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 01:43:01,250 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 01:43:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 01:43:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 01:43:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 01:43:01,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 01:43:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 01:43:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 01:43:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 01:43:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 01:43:01,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:43:01,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:43:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 01:43:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 01:43:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 01:43:01,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 01:43:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 01:43:01,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 01:43:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 01:43:01,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 01:43:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:43:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:43:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:43:01,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:43:01,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 01:43:01,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 01:43:01,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:43:01,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:43:01,467 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:43:01,470 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:43:11,193 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:43:11,253 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:43:11,254 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 01:43:11,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:43:11 BoogieIcfgContainer [2023-11-29 01:43:11,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:43:11,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:43:11,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:43:11,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:43:11,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:42:59" (1/3) ... [2023-11-29 01:43:11,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e344e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:43:11, skipping insertion in model container [2023-11-29 01:43:11,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:43:00" (2/3) ... [2023-11-29 01:43:11,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e344e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:43:11, skipping insertion in model container [2023-11-29 01:43:11,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:43:11" (3/3) ... [2023-11-29 01:43:11,264 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-2.i [2023-11-29 01:43:11,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:43:11,282 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 01:43:11,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:43:11,352 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;@73490349, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:43:11,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 01:43:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 1202 states, 691 states have (on average 1.9088277858176557) internal successors, (1319), 1195 states have internal predecessors, (1319), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-29 01:43:11,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 01:43:11,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:11,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:11,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:11,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:11,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1561346863, now seen corresponding path program 1 times [2023-11-29 01:43:11,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:11,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375346749] [2023-11-29 01:43:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:11,388 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:11,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:11,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:11,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 01:43:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:11,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:43:11,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:11,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:43:11,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:11,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:11,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375346749] [2023-11-29 01:43:11,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375346749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:11,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:11,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:43:11,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433220425] [2023-11-29 01:43:11,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:11,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:43:11,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:11,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:43:11,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:43:11,645 INFO L87 Difference]: Start difference. First operand has 1202 states, 691 states have (on average 1.9088277858176557) internal successors, (1319), 1195 states have internal predecessors, (1319), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:43:11,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:11,773 INFO L93 Difference]: Finished difference Result 1200 states and 2257 transitions. [2023-11-29 01:43:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:43:11,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 01:43:11,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:11,805 INFO L225 Difference]: With dead ends: 1200 [2023-11-29 01:43:11,805 INFO L226 Difference]: Without dead ends: 1199 [2023-11-29 01:43:11,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:43:11,810 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:11,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2252 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:43:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2023-11-29 01:43:12,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1199. [2023-11-29 01:43:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 690 states have (on average 1.808695652173913) internal successors, (1248), 1192 states have internal predecessors, (1248), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 01:43:12,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 2256 transitions. [2023-11-29 01:43:12,149 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 2256 transitions. Word has length 10 [2023-11-29 01:43:12,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:12,149 INFO L495 AbstractCegarLoop]: Abstraction has 1199 states and 2256 transitions. [2023-11-29 01:43:12,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:43:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 2256 transitions. [2023-11-29 01:43:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 01:43:12,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:12,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:12,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:43:12,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:12,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:12,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1219017809, now seen corresponding path program 1 times [2023-11-29 01:43:12,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:12,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450038079] [2023-11-29 01:43:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:12,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:12,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:12,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 01:43:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:12,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:43:12,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:12,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:43:12,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:12,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:12,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450038079] [2023-11-29 01:43:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450038079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:43:12,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425767829] [2023-11-29 01:43:12,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:12,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:43:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:12,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:43:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:43:12,599 INFO L87 Difference]: Start difference. First operand 1199 states and 2256 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:43:13,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:13,523 INFO L93 Difference]: Finished difference Result 2319 states and 4412 transitions. [2023-11-29 01:43:13,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:43:13,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 01:43:13,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:13,539 INFO L225 Difference]: With dead ends: 2319 [2023-11-29 01:43:13,539 INFO L226 Difference]: Without dead ends: 2319 [2023-11-29 01:43:13,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:43:13,540 INFO L413 NwaCegarLoop]: 2240 mSDtfsCounter, 1153 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 4459 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:13,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 4459 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:43:13,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2023-11-29 01:43:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2288. [2023-11-29 01:43:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2288 states, 1279 states have (on average 1.8483189992181392) internal successors, (2364), 2281 states have internal predecessors, (2364), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 01:43:13,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 4372 transitions. [2023-11-29 01:43:13,819 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 4372 transitions. Word has length 12 [2023-11-29 01:43:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:13,820 INFO L495 AbstractCegarLoop]: Abstraction has 2288 states and 4372 transitions. [2023-11-29 01:43:13,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:43:13,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 4372 transitions. [2023-11-29 01:43:13,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 01:43:13,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:13,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:13,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 01:43:14,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:14,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:14,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:14,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1220864851, now seen corresponding path program 1 times [2023-11-29 01:43:14,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:14,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683101720] [2023-11-29 01:43:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:14,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:14,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:14,025 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:14,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 01:43:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:14,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:43:14,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:14,265 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:43:14,265 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:43:14,274 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 33 treesize of output 31 [2023-11-29 01:43:14,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:43:14,337 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 62 treesize of output 22 [2023-11-29 01:43:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:43:14,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:14,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:14,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683101720] [2023-11-29 01:43:14,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683101720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:14,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:14,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:43:14,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799846889] [2023-11-29 01:43:14,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:14,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:43:14,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:14,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:43:14,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:43:14,369 INFO L87 Difference]: Start difference. First operand 2288 states and 4372 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:43:17,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:17,731 INFO L93 Difference]: Finished difference Result 4434 states and 8563 transitions. [2023-11-29 01:43:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:43:17,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 01:43:17,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:17,770 INFO L225 Difference]: With dead ends: 4434 [2023-11-29 01:43:17,770 INFO L226 Difference]: Without dead ends: 4434 [2023-11-29 01:43:17,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:43:17,771 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 1229 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 6661 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:17,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 6661 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 01:43:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2023-11-29 01:43:18,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 2287. [2023-11-29 01:43:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2287 states, 1278 states have (on average 1.8482003129890454) internal successors, (2362), 2280 states have internal predecessors, (2362), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 01:43:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2287 states to 2287 states and 4370 transitions. [2023-11-29 01:43:18,364 INFO L78 Accepts]: Start accepts. Automaton has 2287 states and 4370 transitions. Word has length 12 [2023-11-29 01:43:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:18,364 INFO L495 AbstractCegarLoop]: Abstraction has 2287 states and 4370 transitions. [2023-11-29 01:43:18,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:43:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2287 states and 4370 transitions. [2023-11-29 01:43:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 01:43:18,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:18,368 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:18,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 01:43:18,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:18,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:18,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:18,572 INFO L85 PathProgramCache]: Analyzing trace with hash -93991662, now seen corresponding path program 1 times [2023-11-29 01:43:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:18,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985556673] [2023-11-29 01:43:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:18,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:18,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:18,574 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:18,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 01:43:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:43:19,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:43:19,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:19,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:19,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985556673] [2023-11-29 01:43:19,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985556673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:19,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:19,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:43:19,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208114623] [2023-11-29 01:43:19,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:19,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:43:19,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:19,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:43:19,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:43:19,066 INFO L87 Difference]: Start difference. First operand 2287 states and 4370 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-29 01:43:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:19,274 INFO L93 Difference]: Finished difference Result 2295 states and 4362 transitions. [2023-11-29 01:43:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:43:19,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 81 [2023-11-29 01:43:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:19,295 INFO L225 Difference]: With dead ends: 2295 [2023-11-29 01:43:19,295 INFO L226 Difference]: Without dead ends: 2295 [2023-11-29 01:43:19,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:43:19,297 INFO L413 NwaCegarLoop]: 2223 mSDtfsCounter, 36 mSDsluCounter, 4422 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6645 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:19,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6645 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:43:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2023-11-29 01:43:19,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2293. [2023-11-29 01:43:19,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2293 states, 1284 states have (on average 1.8317757009345794) internal successors, (2352), 2286 states have internal predecessors, (2352), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 01:43:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 4360 transitions. [2023-11-29 01:43:19,642 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 4360 transitions. Word has length 81 [2023-11-29 01:43:19,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:19,642 INFO L495 AbstractCegarLoop]: Abstraction has 2293 states and 4360 transitions. [2023-11-29 01:43:19,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-29 01:43:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 4360 transitions. [2023-11-29 01:43:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 01:43:19,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:19,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:19,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-29 01:43:19,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:19,854 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:19,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:19,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1934027618, now seen corresponding path program 1 times [2023-11-29 01:43:19,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:19,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123243605] [2023-11-29 01:43:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:19,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:19,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:19,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:19,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 01:43:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:20,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:43:20,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:20,380 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:43:20,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:20,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:20,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123243605] [2023-11-29 01:43:20,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123243605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:20,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:20,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:43:20,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172055542] [2023-11-29 01:43:20,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:20,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:43:20,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:20,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:43:20,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:43:20,383 INFO L87 Difference]: Start difference. First operand 2293 states and 4360 transitions. Second operand has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 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) [2023-11-29 01:43:20,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:20,497 INFO L93 Difference]: Finished difference Result 2295 states and 4363 transitions. [2023-11-29 01:43:20,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:43:20,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 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 81 [2023-11-29 01:43:20,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:20,514 INFO L225 Difference]: With dead ends: 2295 [2023-11-29 01:43:20,514 INFO L226 Difference]: Without dead ends: 2295 [2023-11-29 01:43:20,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:43:20,515 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 1 mSDsluCounter, 4474 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6713 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:20,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6713 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:43:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2023-11-29 01:43:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2295. [2023-11-29 01:43:20,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1285 states have (on average 1.8319066147859921) internal successors, (2354), 2288 states have internal predecessors, (2354), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:43:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 4363 transitions. [2023-11-29 01:43:20,877 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 4363 transitions. Word has length 81 [2023-11-29 01:43:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:20,878 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 4363 transitions. [2023-11-29 01:43:20,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 4 states have internal predecessors, (77), 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) [2023-11-29 01:43:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 4363 transitions. [2023-11-29 01:43:20,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 01:43:20,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:20,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:20,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 01:43:21,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:21,084 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:21,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:21,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1078608302, now seen corresponding path program 1 times [2023-11-29 01:43:21,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:21,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808449613] [2023-11-29 01:43:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:21,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:21,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:21,086 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:21,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 01:43:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:21,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:43:21,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:21,704 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:43:21,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:43:21,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:21,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808449613] [2023-11-29 01:43:21,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808449613] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:21,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:21,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:43:21,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153457582] [2023-11-29 01:43:21,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:21,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:43:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:21,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:43:21,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:43:21,795 INFO L87 Difference]: Start difference. First operand 2295 states and 4363 transitions. Second operand has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 8 states have internal predecessors, (85), 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) [2023-11-29 01:43:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:22,072 INFO L93 Difference]: Finished difference Result 2304 states and 4377 transitions. [2023-11-29 01:43:22,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:43:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 8 states have internal predecessors, (85), 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 83 [2023-11-29 01:43:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:22,088 INFO L225 Difference]: With dead ends: 2304 [2023-11-29 01:43:22,088 INFO L226 Difference]: Without dead ends: 2304 [2023-11-29 01:43:22,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:43:22,089 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 6 mSDsluCounter, 6708 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8947 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:22,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8947 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:43:22,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2023-11-29 01:43:22,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2303. [2023-11-29 01:43:22,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 1292 states have (on average 1.8320433436532508) internal successors, (2367), 2295 states have internal predecessors, (2367), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:43:22,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 4376 transitions. [2023-11-29 01:43:22,497 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 4376 transitions. Word has length 83 [2023-11-29 01:43:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:22,497 INFO L495 AbstractCegarLoop]: Abstraction has 2303 states and 4376 transitions. [2023-11-29 01:43:22,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 8 states have internal predecessors, (85), 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) [2023-11-29 01:43:22,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 4376 transitions. [2023-11-29 01:43:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 01:43:22,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:22,500 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] [2023-11-29 01:43:22,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 01:43:22,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:22,702 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:22,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:22,703 INFO L85 PathProgramCache]: Analyzing trace with hash -542867778, now seen corresponding path program 2 times [2023-11-29 01:43:22,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:22,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990705489] [2023-11-29 01:43:22,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:43:22,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:22,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:22,705 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:22,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 01:43:23,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:43:23,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:43:23,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:43:23,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:23,099 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 01:43:23,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:23,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:23,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990705489] [2023-11-29 01:43:23,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990705489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:23,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:23,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:43:23,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8749034] [2023-11-29 01:43:23,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:23,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:43:23,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:23,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:43:23,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:43:23,102 INFO L87 Difference]: Start difference. First operand 2303 states and 4376 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-29 01:43:27,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:31,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:37,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:37,554 INFO L93 Difference]: Finished difference Result 3438 states and 6552 transitions. [2023-11-29 01:43:37,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:43:37,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 87 [2023-11-29 01:43:37,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:37,578 INFO L225 Difference]: With dead ends: 3438 [2023-11-29 01:43:37,578 INFO L226 Difference]: Without dead ends: 3438 [2023-11-29 01:43:37,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:43:37,579 INFO L413 NwaCegarLoop]: 2312 mSDtfsCounter, 3545 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 895 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4048 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 895 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:37,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4048 Valid, 4520 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [895 Valid, 617 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2023-11-29 01:43:37,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2023-11-29 01:43:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3410. [2023-11-29 01:43:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 1898 states have (on average 1.8461538461538463) internal successors, (3504), 3401 states have internal predecessors, (3504), 1506 states have call successors, (1506), 4 states have call predecessors, (1506), 4 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2023-11-29 01:43:38,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 6516 transitions. [2023-11-29 01:43:38,210 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 6516 transitions. Word has length 87 [2023-11-29 01:43:38,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:38,210 INFO L495 AbstractCegarLoop]: Abstraction has 3410 states and 6516 transitions. [2023-11-29 01:43:38,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-29 01:43:38,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 6516 transitions. [2023-11-29 01:43:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 01:43:38,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:38,212 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] [2023-11-29 01:43:38,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 01:43:38,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:38,413 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:38,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:38,416 INFO L85 PathProgramCache]: Analyzing trace with hash 291287068, now seen corresponding path program 1 times [2023-11-29 01:43:38,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:38,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235222580] [2023-11-29 01:43:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:38,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:38,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:38,418 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:38,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 01:43:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:38,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:43:38,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:43:38,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:39,205 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 01:43:39,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:39,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235222580] [2023-11-29 01:43:39,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235222580] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:39,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:39,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 01:43:39,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141274375] [2023-11-29 01:43:39,206 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:39,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:43:39,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:39,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:43:39,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:43:39,207 INFO L87 Difference]: Start difference. First operand 3410 states and 6516 transitions. Second operand has 14 states, 12 states have (on average 8.333333333333334) internal successors, (100), 14 states have internal predecessors, (100), 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) [2023-11-29 01:43:40,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:40,006 INFO L93 Difference]: Finished difference Result 3425 states and 6542 transitions. [2023-11-29 01:43:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:43:40,007 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.333333333333334) internal successors, (100), 14 states have internal predecessors, (100), 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 96 [2023-11-29 01:43:40,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:40,033 INFO L225 Difference]: With dead ends: 3425 [2023-11-29 01:43:40,033 INFO L226 Difference]: Without dead ends: 3423 [2023-11-29 01:43:40,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:43:40,035 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 12 mSDsluCounter, 11183 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13422 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:40,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 13422 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:43:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3423 states. [2023-11-29 01:43:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3423 to 3419. [2023-11-29 01:43:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 1907 states have (on average 1.8437336130047195) internal successors, (3516), 3410 states have internal predecessors, (3516), 1506 states have call successors, (1506), 4 states have call predecessors, (1506), 4 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2023-11-29 01:43:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 6528 transitions. [2023-11-29 01:43:40,769 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 6528 transitions. Word has length 96 [2023-11-29 01:43:40,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:40,769 INFO L495 AbstractCegarLoop]: Abstraction has 3419 states and 6528 transitions. [2023-11-29 01:43:40,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.333333333333334) internal successors, (100), 14 states have internal predecessors, (100), 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) [2023-11-29 01:43:40,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 6528 transitions. [2023-11-29 01:43:40,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 01:43:40,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:40,772 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] [2023-11-29 01:43:40,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 01:43:40,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:40,972 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:40,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:40,973 INFO L85 PathProgramCache]: Analyzing trace with hash -2103141975, now seen corresponding path program 2 times [2023-11-29 01:43:40,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:40,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183042462] [2023-11-29 01:43:40,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:43:40,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:40,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:40,975 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:40,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 01:43:41,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:43:41,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:43:41,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:43:41,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:41,315 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:43:41,315 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:43:41,316 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:43:41,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 01:43:41,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:43:41,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 01:43:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2023-11-29 01:43:41,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:41,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:41,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183042462] [2023-11-29 01:43:41,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183042462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:41,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:41,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:43:41,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781851110] [2023-11-29 01:43:41,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:41,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:43:41,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:41,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:43:41,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:43:41,392 INFO L87 Difference]: Start difference. First operand 3419 states and 6528 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2023-11-29 01:43:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:44,163 INFO L93 Difference]: Finished difference Result 6597 states and 12760 transitions. [2023-11-29 01:43:44,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:43:44,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 105 [2023-11-29 01:43:44,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:44,187 INFO L225 Difference]: With dead ends: 6597 [2023-11-29 01:43:44,187 INFO L226 Difference]: Without dead ends: 6597 [2023-11-29 01:43:44,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:43:44,188 INFO L413 NwaCegarLoop]: 2694 mSDtfsCounter, 1176 mSDsluCounter, 4410 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 7104 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:44,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 7104 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 01:43:44,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6597 states. [2023-11-29 01:43:45,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6597 to 3423. [2023-11-29 01:43:45,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3423 states, 1911 states have (on average 1.8419675562532705) internal successors, (3520), 3414 states have internal predecessors, (3520), 1506 states have call successors, (1506), 4 states have call predecessors, (1506), 4 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2023-11-29 01:43:45,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 6532 transitions. [2023-11-29 01:43:45,223 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 6532 transitions. Word has length 105 [2023-11-29 01:43:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:45,223 INFO L495 AbstractCegarLoop]: Abstraction has 3423 states and 6532 transitions. [2023-11-29 01:43:45,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2023-11-29 01:43:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 6532 transitions. [2023-11-29 01:43:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 01:43:45,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:45,225 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:45,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 01:43:45,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:45,426 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:45,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:45,427 INFO L85 PathProgramCache]: Analyzing trace with hash -513109109, now seen corresponding path program 1 times [2023-11-29 01:43:45,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:45,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786944555] [2023-11-29 01:43:45,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:45,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:45,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:45,429 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:45,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 01:43:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:45,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:43:45,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 01:43:46,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:46,791 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:43:46,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:46,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786944555] [2023-11-29 01:43:46,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786944555] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:46,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:46,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 01:43:46,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453153343] [2023-11-29 01:43:46,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:46,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 01:43:46,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:46,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 01:43:46,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:43:46,794 INFO L87 Difference]: Start difference. First operand 3423 states and 6532 transitions. Second operand has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:43:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:49,312 INFO L93 Difference]: Finished difference Result 3453 states and 6588 transitions. [2023-11-29 01:43:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 01:43:49,313 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 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 139 [2023-11-29 01:43:49,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:49,325 INFO L225 Difference]: With dead ends: 3453 [2023-11-29 01:43:49,325 INFO L226 Difference]: Without dead ends: 3451 [2023-11-29 01:43:49,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 01:43:49,327 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 25 mSDsluCounter, 24598 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 26837 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:49,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 26837 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:43:49,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2023-11-29 01:43:49,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 3441. [2023-11-29 01:43:49,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 1929 states have (on average 1.8372213582166925) internal successors, (3544), 3432 states have internal predecessors, (3544), 1506 states have call successors, (1506), 4 states have call predecessors, (1506), 4 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2023-11-29 01:43:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 6556 transitions. [2023-11-29 01:43:49,941 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 6556 transitions. Word has length 139 [2023-11-29 01:43:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:49,941 INFO L495 AbstractCegarLoop]: Abstraction has 3441 states and 6556 transitions. [2023-11-29 01:43:49,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:43:49,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 6556 transitions. [2023-11-29 01:43:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 01:43:49,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:49,943 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:49,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-29 01:43:50,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:50,143 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:50,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:50,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1763905045, now seen corresponding path program 2 times [2023-11-29 01:43:50,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:50,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51402908] [2023-11-29 01:43:50,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:43:50,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:50,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:50,146 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:50,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 01:43:50,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:43:50,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:43:50,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:43:50,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2023-11-29 01:43:50,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:43:50,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:50,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51402908] [2023-11-29 01:43:50,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51402908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:50,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:50,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:43:50,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176311803] [2023-11-29 01:43:50,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:50,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:43:50,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:50,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:43:50,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:43:50,504 INFO L87 Difference]: Start difference. First operand 3441 states and 6556 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:43:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:50,633 INFO L93 Difference]: Finished difference Result 3453 states and 6544 transitions. [2023-11-29 01:43:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:43:50,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 157 [2023-11-29 01:43:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:50,646 INFO L225 Difference]: With dead ends: 3453 [2023-11-29 01:43:50,646 INFO L226 Difference]: Without dead ends: 3453 [2023-11-29 01:43:50,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:43:50,647 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 36 mSDsluCounter, 4400 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6612 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:50,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6612 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:43:50,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2023-11-29 01:43:51,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3450. [2023-11-29 01:43:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3450 states, 1938 states have (on average 1.8209494324045408) internal successors, (3529), 3441 states have internal predecessors, (3529), 1506 states have call successors, (1506), 4 states have call predecessors, (1506), 4 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2023-11-29 01:43:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3450 states to 3450 states and 6541 transitions. [2023-11-29 01:43:51,207 INFO L78 Accepts]: Start accepts. Automaton has 3450 states and 6541 transitions. Word has length 157 [2023-11-29 01:43:51,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:51,208 INFO L495 AbstractCegarLoop]: Abstraction has 3450 states and 6541 transitions. [2023-11-29 01:43:51,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:43:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3450 states and 6541 transitions. [2023-11-29 01:43:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 01:43:51,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:51,210 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:43:51,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-29 01:43:51,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:51,411 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:43:51,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1631838431, now seen corresponding path program 1 times [2023-11-29 01:43:51,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:43:51,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768084027] [2023-11-29 01:43:51,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:51,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:43:51,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:43:51,413 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:43:51,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 01:43:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:52,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:43:52,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 01:43:52,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 01:43:54,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:43:54,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768084027] [2023-11-29 01:43:54,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768084027] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:54,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:43:54,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 01:43:54,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957597627] [2023-11-29 01:43:54,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:54,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 01:43:54,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:43:54,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 01:43:54,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 01:43:54,473 INFO L87 Difference]: Start difference. First operand 3450 states and 6541 transitions. Second operand has 50 states, 48 states have (on average 3.5208333333333335) internal successors, (169), 50 states have internal predecessors, (169), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:44:04,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:04,652 INFO L93 Difference]: Finished difference Result 3508 states and 6653 transitions. [2023-11-29 01:44:04,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 01:44:04,653 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.5208333333333335) internal successors, (169), 50 states have internal predecessors, (169), 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 157 [2023-11-29 01:44:04,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:04,664 INFO L225 Difference]: With dead ends: 3508 [2023-11-29 01:44:04,664 INFO L226 Difference]: Without dead ends: 3506 [2023-11-29 01:44:04,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 01:44:04,670 INFO L413 NwaCegarLoop]: 2228 mSDtfsCounter, 48 mSDsluCounter, 53400 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 55628 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:04,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 55628 Invalid, 2540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 2504 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 01:44:04,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2023-11-29 01:44:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 3484. [2023-11-29 01:44:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 1972 states have (on average 1.8128803245436105) internal successors, (3575), 3475 states have internal predecessors, (3575), 1506 states have call successors, (1506), 4 states have call predecessors, (1506), 4 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2023-11-29 01:44:05,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 6587 transitions. [2023-11-29 01:44:05,193 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 6587 transitions. Word has length 157 [2023-11-29 01:44:05,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:05,193 INFO L495 AbstractCegarLoop]: Abstraction has 3484 states and 6587 transitions. [2023-11-29 01:44:05,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.5208333333333335) internal successors, (169), 50 states have internal predecessors, (169), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:44:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 6587 transitions. [2023-11-29 01:44:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 01:44:05,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:05,196 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:05,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 01:44:05,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:44:05,397 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:44:05,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:05,397 INFO L85 PathProgramCache]: Analyzing trace with hash 482874815, now seen corresponding path program 2 times [2023-11-29 01:44:05,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:44:05,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990022886] [2023-11-29 01:44:05,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:44:05,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:44:05,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:44:05,400 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:44:05,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 01:44:06,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:44:06,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:44:06,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:44:06,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 01:44:07,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 01:44:09,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:44:09,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990022886] [2023-11-29 01:44:09,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990022886] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:44:09,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:44:09,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 01:44:09,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140095081] [2023-11-29 01:44:09,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:09,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 01:44:09,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:44:09,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 01:44:09,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 01:44:09,504 INFO L87 Difference]: Start difference. First operand 3484 states and 6587 transitions. Second operand has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:44:19,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:19,704 INFO L93 Difference]: Finished difference Result 3533 states and 6685 transitions. [2023-11-29 01:44:19,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 01:44:19,705 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 191 [2023-11-29 01:44:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:19,717 INFO L225 Difference]: With dead ends: 3533 [2023-11-29 01:44:19,717 INFO L226 Difference]: Without dead ends: 3533 [2023-11-29 01:44:19,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3565 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 01:44:19,722 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 55 mSDsluCounter, 53378 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 55605 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:19,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 55605 Invalid, 2067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 01:44:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2023-11-29 01:44:20,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3509. [2023-11-29 01:44:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 1997 states have (on average 1.815222834251377) internal successors, (3625), 3500 states have internal predecessors, (3625), 1506 states have call successors, (1506), 4 states have call predecessors, (1506), 4 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2023-11-29 01:44:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 6637 transitions. [2023-11-29 01:44:20,245 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 6637 transitions. Word has length 191 [2023-11-29 01:44:20,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:20,245 INFO L495 AbstractCegarLoop]: Abstraction has 3509 states and 6637 transitions. [2023-11-29 01:44:20,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:44:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 6637 transitions. [2023-11-29 01:44:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 01:44:20,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:20,247 INFO L195 NwaCegarLoop]: trace histogram [92, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:20,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 01:44:20,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:44:20,448 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:44:20,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:20,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1865804782, now seen corresponding path program 3 times [2023-11-29 01:44:20,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:44:20,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626938814] [2023-11-29 01:44:20,450 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:44:20,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:44:20,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:44:20,451 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:44:20,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 01:44:21,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:44:21,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:44:21,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:44:21,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:21,597 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:44:21,597 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:44:21,599 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 33 treesize of output 31 [2023-11-29 01:44:24,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:44:24,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 181 treesize of output 83 [2023-11-29 01:44:24,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:44:24,229 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 114 treesize of output 70 [2023-11-29 01:44:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4373 trivial. 0 not checked. [2023-11-29 01:44:24,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4373 trivial. 0 not checked. [2023-11-29 01:44:25,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:44:25,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626938814] [2023-11-29 01:44:25,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626938814] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:44:25,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:44:25,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-29 01:44:25,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172641597] [2023-11-29 01:44:25,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:25,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:44:25,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:44:25,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:44:25,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:44:25,386 INFO L87 Difference]: Start difference. First operand 3509 states and 6637 transitions. Second operand has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:44:29,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:34,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:38,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:42,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:46,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:51,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:55,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:44:59,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:04,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:08,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:12,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:16,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:21,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:25,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:43,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:45:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:56,054 INFO L93 Difference]: Finished difference Result 10409 states and 19760 transitions. [2023-11-29 01:45:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:45:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 216 [2023-11-29 01:45:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:56,071 INFO L225 Difference]: With dead ends: 10409 [2023-11-29 01:45:56,071 INFO L226 Difference]: Without dead ends: 10409 [2023-11-29 01:45:56,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 417 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:45:56,071 INFO L413 NwaCegarLoop]: 1813 mSDtfsCounter, 4811 mSDsluCounter, 13931 mSDsCounter, 0 mSdLazyCounter, 6235 mSolverCounterSat, 2012 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5318 SdHoareTripleChecker+Valid, 15744 SdHoareTripleChecker+Invalid, 8262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2012 IncrementalHoareTripleChecker+Valid, 6235 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:56,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5318 Valid, 15744 Invalid, 8262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2012 Valid, 6235 Invalid, 15 Unknown, 0 Unchecked, 89.7s Time] [2023-11-29 01:45:56,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2023-11-29 01:45:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 3843. [2023-11-29 01:45:57,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2319 states have (on average 1.742561448900388) internal successors, (4041), 3823 states have internal predecessors, (4041), 1515 states have call successors, (1515), 6 states have call predecessors, (1515), 7 states have return successors, (1518), 16 states have call predecessors, (1518), 1513 states have call successors, (1518) [2023-11-29 01:45:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 7074 transitions. [2023-11-29 01:45:57,498 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 7074 transitions. Word has length 216 [2023-11-29 01:45:57,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:57,498 INFO L495 AbstractCegarLoop]: Abstraction has 3843 states and 7074 transitions. [2023-11-29 01:45:57,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:45:57,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 7074 transitions. [2023-11-29 01:45:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-11-29 01:45:57,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:57,504 INFO L195 NwaCegarLoop]: trace histogram [92, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-29 01:45:57,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 01:45:57,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:45:57,705 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:45:57,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:57,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1585538282, now seen corresponding path program 1 times [2023-11-29 01:45:57,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:45:57,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424350765] [2023-11-29 01:45:57,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:57,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:45:57,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:45:57,709 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:45:57,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 01:46:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:00,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 2372 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 01:46:00,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:46:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4711 backedges. 2322 proven. 1176 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:46:02,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:46:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4711 backedges. 2322 proven. 1176 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:46:10,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:46:10,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424350765] [2023-11-29 01:46:10,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424350765] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:46:10,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:46:10,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 01:46:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606390877] [2023-11-29 01:46:10,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:46:10,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 01:46:10,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:46:10,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 01:46:10,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 01:46:10,227 INFO L87 Difference]: Start difference. First operand 3843 states and 7074 transitions. Second operand has 102 states, 100 states have (on average 2.49) internal successors, (249), 102 states have internal predecessors, (249), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:46:59,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:46:59,701 INFO L93 Difference]: Finished difference Result 4057 states and 7549 transitions. [2023-11-29 01:46:59,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 01:46:59,702 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.49) internal successors, (249), 102 states have internal predecessors, (249), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 376 [2023-11-29 01:46:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:46:59,712 INFO L225 Difference]: With dead ends: 4057 [2023-11-29 01:46:59,712 INFO L226 Difference]: Without dead ends: 4057 [2023-11-29 01:46:59,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 43.4s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 01:46:59,722 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 115 mSDsluCounter, 108978 mSDsCounter, 0 mSdLazyCounter, 7996 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 111205 SdHoareTripleChecker+Invalid, 8090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 7996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:46:59,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 111205 Invalid, 8090 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [94 Valid, 7996 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-11-29 01:46:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2023-11-29 01:47:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 3951. [2023-11-29 01:47:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3951 states, 2427 states have (on average 1.7531932426864443) internal successors, (4255), 3931 states have internal predecessors, (4255), 1515 states have call successors, (1515), 6 states have call predecessors, (1515), 7 states have return successors, (1518), 16 states have call predecessors, (1518), 1513 states have call successors, (1518) [2023-11-29 01:47:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 7288 transitions. [2023-11-29 01:47:00,244 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 7288 transitions. Word has length 376 [2023-11-29 01:47:00,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:47:00,245 INFO L495 AbstractCegarLoop]: Abstraction has 3951 states and 7288 transitions. [2023-11-29 01:47:00,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.49) internal successors, (249), 102 states have internal predecessors, (249), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:47:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 7288 transitions. [2023-11-29 01:47:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-11-29 01:47:00,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:47:00,248 INFO L195 NwaCegarLoop]: trace histogram [142, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-29 01:47:00,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 01:47:00,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:47:00,449 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:47:00,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:47:00,450 INFO L85 PathProgramCache]: Analyzing trace with hash -382143562, now seen corresponding path program 2 times [2023-11-29 01:47:00,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:47:00,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164997362] [2023-11-29 01:47:00,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:47:00,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:47:00,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:47:00,452 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:47:00,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 01:47:03,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:47:03,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:47:03,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 2922 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-29 01:47:03,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:47:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:47:11,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:47:42,893 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:47:42,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:47:42,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164997362] [2023-11-29 01:47:42,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164997362] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:47:42,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:47:42,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 01:47:42,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938196351] [2023-11-29 01:47:42,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:47:42,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 01:47:42,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:47:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 01:47:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 01:47:42,904 INFO L87 Difference]: Start difference. First operand 3951 states and 7288 transitions. Second operand has 202 states, 200 states have (on average 1.745) internal successors, (349), 202 states have internal predecessors, (349), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:53:00,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:53:00,509 INFO L93 Difference]: Finished difference Result 4357 states and 8199 transitions. [2023-11-29 01:53:00,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-29 01:53:00,510 INFO L78 Accepts]: Start accepts. Automaton has has 202 states, 200 states have (on average 1.745) internal successors, (349), 202 states have internal predecessors, (349), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 426 [2023-11-29 01:53:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:53:00,518 INFO L225 Difference]: With dead ends: 4357 [2023-11-29 01:53:00,518 INFO L226 Difference]: Without dead ends: 4357 [2023-11-29 01:53:00,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 397 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29008 ImplicationChecksByTransitivity, 277.7s TimeCoverageRelationStatistics Valid=50195, Invalid=108607, Unknown=0, NotChecked=0, Total=158802 [2023-11-29 01:53:00,537 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 215 mSDsluCounter, 220177 mSDsCounter, 0 mSdLazyCounter, 30897 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 222404 SdHoareTripleChecker+Invalid, 31022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 30897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:53:00,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 222404 Invalid, 31022 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [125 Valid, 30897 Invalid, 0 Unknown, 0 Unchecked, 69.5s Time] [2023-11-29 01:53:00,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2023-11-29 01:53:01,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 4151. [2023-11-29 01:53:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4151 states, 2627 states have (on average 1.7719832508564903) internal successors, (4655), 4131 states have internal predecessors, (4655), 1515 states have call successors, (1515), 6 states have call predecessors, (1515), 7 states have return successors, (1518), 16 states have call predecessors, (1518), 1513 states have call successors, (1518) [2023-11-29 01:53:01,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4151 states to 4151 states and 7688 transitions. [2023-11-29 01:53:01,168 INFO L78 Accepts]: Start accepts. Automaton has 4151 states and 7688 transitions. Word has length 426 [2023-11-29 01:53:01,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:53:01,168 INFO L495 AbstractCegarLoop]: Abstraction has 4151 states and 7688 transitions. [2023-11-29 01:53:01,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 200 states have (on average 1.745) internal successors, (349), 202 states have internal predecessors, (349), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:53:01,168 INFO L276 IsEmpty]: Start isEmpty. Operand 4151 states and 7688 transitions. [2023-11-29 01:53:01,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2023-11-29 01:53:01,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:53:01,173 INFO L195 NwaCegarLoop]: trace histogram [242, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-29 01:53:01,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-29 01:53:01,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:53:01,373 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:53:01,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:53:01,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1130196214, now seen corresponding path program 3 times [2023-11-29 01:53:01,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:53:01,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137203292] [2023-11-29 01:53:01,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:53:01,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:53:01,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:53:01,377 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:53:01,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 01:53:02,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:53:02,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:53:02,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:53:02,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:53:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 29926 trivial. 0 not checked. [2023-11-29 01:53:02,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:53:02,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:53:02,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137203292] [2023-11-29 01:53:02,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137203292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:53:02,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:53:02,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:53:02,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736217911] [2023-11-29 01:53:02,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:53:02,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:53:02,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:53:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:53:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:53:02,881 INFO L87 Difference]: Start difference. First operand 4151 states and 7688 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:53:03,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:53:03,893 INFO L93 Difference]: Finished difference Result 3333 states and 5907 transitions. [2023-11-29 01:53:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:53:03,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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 526 [2023-11-29 01:53:03,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:53:03,901 INFO L225 Difference]: With dead ends: 3333 [2023-11-29 01:53:03,901 INFO L226 Difference]: Without dead ends: 3333 [2023-11-29 01:53:03,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:53:03,902 INFO L413 NwaCegarLoop]: 2280 mSDtfsCounter, 1146 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:53:03,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 2958 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:53:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2023-11-29 01:53:04,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2194. [2023-11-29 01:53:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 1668 states have (on average 1.6211031175059951) internal successors, (2704), 2172 states have internal predecessors, (2704), 517 states have call successors, (517), 6 states have call predecessors, (517), 7 states have return successors, (522), 16 states have call predecessors, (522), 515 states have call successors, (522) [2023-11-29 01:53:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 3743 transitions. [2023-11-29 01:53:04,245 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 3743 transitions. Word has length 526 [2023-11-29 01:53:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:53:04,246 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 3743 transitions. [2023-11-29 01:53:04,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:53:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 3743 transitions. [2023-11-29 01:53:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-29 01:53:04,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:53:04,252 INFO L195 NwaCegarLoop]: trace histogram [242, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-29 01:53:04,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 01:53:04,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:53:04,453 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:53:04,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:53:04,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1530606912, now seen corresponding path program 1 times [2023-11-29 01:53:04,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:53:04,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785068582] [2023-11-29 01:53:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:53:04,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:53:04,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:53:04,457 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:53:04,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9549bede-f4c1-4145-b55b-5907ffafde4c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-29 01:53:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:53:09,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 201 conjunts are in the unsatisfiable core [2023-11-29 01:53:09,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:53:44,238 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:53:44,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:54:15,663 WARN L293 SmtUtils]: Spent 31.38s on a formula simplification. DAG size of input: 602 DAG size of output: 601 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 01:56:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:56:32,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:56:32,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785068582] [2023-11-29 01:56:32,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785068582] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:56:32,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:56:32,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [202, 202] total 402 [2023-11-29 01:56:32,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16314742] [2023-11-29 01:56:32,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:56:32,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2023-11-29 01:56:32,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:56:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2023-11-29 01:56:32,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40710, Invalid=120492, Unknown=0, NotChecked=0, Total=161202 [2023-11-29 01:56:32,871 INFO L87 Difference]: Start difference. First operand 2194 states and 3743 transitions. Second operand has 402 states, 400 states have (on average 1.3925) internal successors, (557), 402 states have internal predecessors, (557), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)