./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0102-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:33:48,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:33:48,069 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 02:33:48,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:33:48,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:33:48,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:33:48,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:33:48,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:33:48,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:33:48,099 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:33:48,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:33:48,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:33:48,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:33:48,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:33:48,101 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:33:48,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:33:48,103 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:33:48,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:33:48,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:33:48,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:33:48,104 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 02:33:48,105 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 02:33:48,105 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 02:33:48,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:33:48,106 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:33:48,107 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:33:48,107 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:33:48,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:33:48,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:33:48,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:33:48,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:33:48,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:33:48,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:33:48,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:33:48,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:33:48,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:33:48,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:33:48,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:33:48,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:33:48,110 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:33:48,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:33:48,110 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_9332aa2f-ec5b-4f36-843f-606c59cf4904/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f [2023-11-29 02:33:48,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:33:48,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:33:48,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:33:48,327 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:33:48,327 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:33:48,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/memsafety/test-0102-1.i [2023-11-29 02:33:51,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:33:51,401 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:33:51,402 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/sv-benchmarks/c/memsafety/test-0102-1.i [2023-11-29 02:33:51,420 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data/a3f4cd7d9/b8374d35db914d55851d155f50007239/FLAGb2b038035 [2023-11-29 02:33:51,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data/a3f4cd7d9/b8374d35db914d55851d155f50007239 [2023-11-29 02:33:51,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:33:51,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:33:51,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:33:51,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:33:51,445 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:33:51,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:33:51" (1/1) ... [2023-11-29 02:33:51,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef0e54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:51, skipping insertion in model container [2023-11-29 02:33:51,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:33:51" (1/1) ... [2023-11-29 02:33:51,486 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:33:51,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:33:51,778 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 02:33:51,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@64fa5b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:51, skipping insertion in model container [2023-11-29 02:33:51,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:33:51,779 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 02:33:51,781 INFO L158 Benchmark]: Toolchain (without parser) took 342.33ms. Allocated memory is still 148.9MB. Free memory was 117.4MB in the beginning and 105.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:33:51,782 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:33:51,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.96ms. Allocated memory is still 148.9MB. Free memory was 116.7MB in the beginning and 105.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:33:51,784 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.96ms. Allocated memory is still 148.9MB. Free memory was 116.7MB in the beginning and 105.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 551]: 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_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0102-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:33:53,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:33:53,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-29 02:33:53,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:33:53,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:33:53,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:33:53,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:33:53,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:33:53,586 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:33:53,587 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:33:53,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:33:53,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:33:53,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:33:53,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:33:53,590 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:33:53,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:33:53,591 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:33:53,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:33:53,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:33:53,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:33:53,593 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 02:33:53,594 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 02:33:53,594 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 02:33:53,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:33:53,595 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:33:53,595 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:33:53,596 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:33:53,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:33:53,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:33:53,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:33:53,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:33:53,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:33:53,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:33:53,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:33:53,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:33:53,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:33:53,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:33:53,599 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:33:53,600 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:33:53,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:33:53,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:33:53,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:33:53,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:33:53,601 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:33:53,601 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_9332aa2f-ec5b-4f36-843f-606c59cf4904/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa260939b291574cde59d3c10d7828de68c26744f55119227115b01940792a6f [2023-11-29 02:33:53,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:33:53,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:33:53,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:33:53,917 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:33:53,917 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:33:53,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/memsafety/test-0102-1.i [2023-11-29 02:33:56,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:33:56,955 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:33:56,956 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/sv-benchmarks/c/memsafety/test-0102-1.i [2023-11-29 02:33:56,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data/2fce78fe1/6819a4a2375d45b8b2ed46130dc06904/FLAG354c33a38 [2023-11-29 02:33:56,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/data/2fce78fe1/6819a4a2375d45b8b2ed46130dc06904 [2023-11-29 02:33:56,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:33:56,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:33:56,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:33:56,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:33:56,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:33:56,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:33:56" (1/1) ... [2023-11-29 02:33:56,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d3e3cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:56, skipping insertion in model container [2023-11-29 02:33:56,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:33:56" (1/1) ... [2023-11-29 02:33:57,038 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:33:57,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:33:57,361 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 02:33:57,370 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:33:57,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:33:57,408 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:33:57,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:33:57,517 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:33:57,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57 WrapperNode [2023-11-29 02:33:57,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:33:57,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:33:57,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:33:57,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:33:57,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,568 INFO L138 Inliner]: procedures = 136, calls = 38, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 88 [2023-11-29 02:33:57,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:33:57,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:33:57,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:33:57,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:33:57,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,606 INFO L175 MemorySlicer]: Split 16 memory accesses to 2 slices as follows [2, 14]. 88 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 7 writes are split as follows [0, 7]. [2023-11-29 02:33:57,606 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:33:57,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:33:57,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:33:57,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:33:57,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (1/1) ... [2023-11-29 02:33:57,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:33:57,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:33:57,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:33:57,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:33:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-29 02:33:57,707 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-29 02:33:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 02:33:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:33:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure create_sub_list [2023-11-29 02:33:57,707 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sub_list [2023-11-29 02:33:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:33:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 02:33:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 02:33:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 02:33:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 02:33:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sub [2023-11-29 02:33:57,709 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sub [2023-11-29 02:33:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 02:33:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 02:33:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:33:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 02:33:57,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 02:33:57,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:33:57,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 02:33:57,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:33:57,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:33:57,844 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:33:57,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:33:58,220 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:33:58,263 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:33:58,264 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 02:33:58,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:33:58 BoogieIcfgContainer [2023-11-29 02:33:58,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:33:58,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:33:58,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:33:58,270 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:33:58,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:33:56" (1/3) ... [2023-11-29 02:33:58,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d07aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:33:58, skipping insertion in model container [2023-11-29 02:33:58,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:33:57" (2/3) ... [2023-11-29 02:33:58,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d07aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:33:58, skipping insertion in model container [2023-11-29 02:33:58,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:33:58" (3/3) ... [2023-11-29 02:33:58,273 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0102-1.i [2023-11-29 02:33:58,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:33:58,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-11-29 02:33:58,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:33:58,344 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;@110a4941, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:33:58,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-29 02:33:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 37 states have (on average 2.108108108108108) internal successors, (78), 68 states have internal predecessors, (78), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:33:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 02:33:58,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:58,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 02:33:58,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:33:58,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:58,361 INFO L85 PathProgramCache]: Analyzing trace with hash 5886764, now seen corresponding path program 1 times [2023-11-29 02:33:58,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:33:58,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281138423] [2023-11-29 02:33:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:58,374 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 02:33:58,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:33:58,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:58,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:58,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:33:58,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:33:58,490 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 02:33:58,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:33:58,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:33:58,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281138423] [2023-11-29 02:33:58,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281138423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:58,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:58,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:33:58,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791212385] [2023-11-29 02:33:58,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:58,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:33:58,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:33:58,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:33:58,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:33:58,540 INFO L87 Difference]: Start difference. First operand has 78 states, 37 states have (on average 2.108108108108108) internal successors, (78), 68 states have internal predecessors, (78), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 02:33:58,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:58,605 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2023-11-29 02:33:58,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:33:58,608 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-29 02:33:58,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:58,625 INFO L225 Difference]: With dead ends: 78 [2023-11-29 02:33:58,625 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 02:33:58,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 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 02:33:58,630 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:58,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:33:58,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 02:33:58,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 02:33:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 67 states have internal predecessors, (71), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:33:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2023-11-29 02:33:58,672 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 4 [2023-11-29 02:33:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:58,672 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2023-11-29 02:33:58,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 02:33:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2023-11-29 02:33:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:33:58,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:58,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:33:58,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:58,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:58,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:33:58,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1343268717, now seen corresponding path program 1 times [2023-11-29 02:33:58,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:33:58,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398419557] [2023-11-29 02:33:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:58,878 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 02:33:58,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:33:58,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:58,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:58,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:33:58,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:33:59,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:33:59,069 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 02:33:59,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:33:59,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:33:59,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398419557] [2023-11-29 02:33:59,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398419557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:59,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:59,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:33:59,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040783296] [2023-11-29 02:33:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:59,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:33:59,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:33:59,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:33:59,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:33:59,073 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 02:33:59,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:33:59,419 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2023-11-29 02:33:59,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:33:59,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2023-11-29 02:33:59,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:33:59,422 INFO L225 Difference]: With dead ends: 75 [2023-11-29 02:33:59,422 INFO L226 Difference]: Without dead ends: 75 [2023-11-29 02:33:59,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:33:59,424 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 25 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:33:59,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 159 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:33:59,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-29 02:33:59,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-29 02:33:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 37 states have (on average 1.864864864864865) internal successors, (69), 65 states have internal predecessors, (69), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:33:59,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2023-11-29 02:33:59,438 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 6 [2023-11-29 02:33:59,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:33:59,438 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2023-11-29 02:33:59,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 02:33:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2023-11-29 02:33:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:33:59,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:33:59,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:33:59,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:59,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:59,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:33:59,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:33:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1343268718, now seen corresponding path program 1 times [2023-11-29 02:33:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:33:59,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33790895] [2023-11-29 02:33:59,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:33:59,644 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 02:33:59,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:33:59,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:59,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:33:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:33:59,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:33:59,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:33:59,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:33:59,841 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 02:33:59,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:33:59,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:33:59,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33790895] [2023-11-29 02:33:59,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33790895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:33:59,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:33:59,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:33:59,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673257508] [2023-11-29 02:33:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:33:59,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:33:59,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:33:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:33:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:33:59,845 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 02:34:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:00,233 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2023-11-29 02:34:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:34:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2023-11-29 02:34:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:00,239 INFO L225 Difference]: With dead ends: 79 [2023-11-29 02:34:00,240 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 02:34:00,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:34:00,241 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 5 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:00,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 212 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:34:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 02:34:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2023-11-29 02:34:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 40 states have (on average 1.8) internal successors, (72), 67 states have internal predecessors, (72), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:34:00,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2023-11-29 02:34:00,254 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 6 [2023-11-29 02:34:00,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:00,255 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2023-11-29 02:34:00,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 02:34:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2023-11-29 02:34:00,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 02:34:00,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:00,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:00,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting create_sub_listErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:00,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:00,460 INFO L85 PathProgramCache]: Analyzing trace with hash -10941867, now seen corresponding path program 1 times [2023-11-29 02:34:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:00,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251118274] [2023-11-29 02:34:00,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:00,461 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 02:34:00,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:00,462 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:00,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:34:00,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:00,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:00,562 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 02:34:00,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:00,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:00,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251118274] [2023-11-29 02:34:00,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251118274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:00,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:00,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:34:00,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149373526] [2023-11-29 02:34:00,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:00,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:34:00,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:00,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:34:00,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:34:00,566 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 02:34:00,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:00,701 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2023-11-29 02:34:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:34:00,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 02:34:00,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:00,703 INFO L225 Difference]: With dead ends: 77 [2023-11-29 02:34:00,703 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 02:34:00,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 02:34:00,705 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 2 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:00,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 112 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:34:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 02:34:00,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 02:34:00,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 40 states have (on average 1.775) internal successors, (71), 66 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:34:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2023-11-29 02:34:00,715 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 10 [2023-11-29 02:34:00,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:00,715 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2023-11-29 02:34:00,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 02:34:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2023-11-29 02:34:00,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 02:34:00,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:00,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:00,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting create_sub_listErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:00,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:00,920 INFO L85 PathProgramCache]: Analyzing trace with hash -10941866, now seen corresponding path program 1 times [2023-11-29 02:34:00,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:00,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142066935] [2023-11-29 02:34:00,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:00,920 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 02:34:00,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:00,921 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:00,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:34:00,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:01,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:34:01,028 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 02:34:01,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:01,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:01,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142066935] [2023-11-29 02:34:01,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142066935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:01,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:01,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:34:01,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000714416] [2023-11-29 02:34:01,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:01,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:34:01,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:01,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:34:01,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:34:01,031 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 02:34:01,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:01,191 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2023-11-29 02:34:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:34:01,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 02:34:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:01,196 INFO L225 Difference]: With dead ends: 76 [2023-11-29 02:34:01,196 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 02:34:01,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 02:34:01,198 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:01,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:34:01,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 02:34:01,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-29 02:34:01,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 40 states have (on average 1.75) internal successors, (70), 65 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:34:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2023-11-29 02:34:01,206 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 10 [2023-11-29 02:34:01,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:01,207 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2023-11-29 02:34:01,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 02:34:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2023-11-29 02:34:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 02:34:01,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:01,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:01,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:01,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:01,410 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting list_add_tailErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:01,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:01,411 INFO L85 PathProgramCache]: Analyzing trace with hash 448465278, now seen corresponding path program 1 times [2023-11-29 02:34:01,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:01,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137282956] [2023-11-29 02:34:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:01,411 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 02:34:01,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:01,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:01,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:01,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:34:01,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:01,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:01,599 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 02:34:01,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-29 02:34:01,709 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 02:34:01,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:01,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:01,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137282956] [2023-11-29 02:34:01,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137282956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:01,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:01,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:34:01,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128453234] [2023-11-29 02:34:01,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:01,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:34:01,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:01,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:34:01,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:34:01,712 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:02,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:02,283 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2023-11-29 02:34:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:34:02,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-29 02:34:02,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:02,285 INFO L225 Difference]: With dead ends: 92 [2023-11-29 02:34:02,285 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 02:34:02,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:34:02,286 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 60 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:02,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 235 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:34:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 02:34:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 83. [2023-11-29 02:34:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 46 states have (on average 1.8478260869565217) internal successors, (85), 71 states have internal predecessors, (85), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:34:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 97 transitions. [2023-11-29 02:34:02,293 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 97 transitions. Word has length 13 [2023-11-29 02:34:02,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:02,293 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 97 transitions. [2023-11-29 02:34:02,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 97 transitions. [2023-11-29 02:34:02,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 02:34:02,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:02,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:02,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:02,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:02,498 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting list_add_tailErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:02,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:02,498 INFO L85 PathProgramCache]: Analyzing trace with hash 448465279, now seen corresponding path program 1 times [2023-11-29 02:34:02,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:02,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431922531] [2023-11-29 02:34:02,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:02,499 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 02:34:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:02,500 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:02,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:02,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:34:02,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:02,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:02,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:34:02,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:34:02,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:34:02,793 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:34:02,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:34:02,882 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 02:34:02,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:02,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:02,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431922531] [2023-11-29 02:34:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431922531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:02,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:02,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:34:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212226151] [2023-11-29 02:34:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:02,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:34:02,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:02,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:34:02,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:34:02,885 INFO L87 Difference]: Start difference. First operand 83 states and 97 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:03,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:03,568 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2023-11-29 02:34:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:34:03,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-29 02:34:03,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:03,570 INFO L225 Difference]: With dead ends: 106 [2023-11-29 02:34:03,570 INFO L226 Difference]: Without dead ends: 106 [2023-11-29 02:34:03,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:34:03,571 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 42 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:03,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 267 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:34:03,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-29 02:34:03,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 98. [2023-11-29 02:34:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 58 states have (on average 1.8275862068965518) internal successors, (106), 84 states have internal predecessors, (106), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:34:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2023-11-29 02:34:03,579 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 13 [2023-11-29 02:34:03,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:03,580 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2023-11-29 02:34:03,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2023-11-29 02:34:03,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 02:34:03,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:03,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:03,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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)] Forceful destruction successful, exit code 0 [2023-11-29 02:34:03,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:03,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting list_add_tailErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:03,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1017524743, now seen corresponding path program 1 times [2023-11-29 02:34:03,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:03,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121516528] [2023-11-29 02:34:03,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:03,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:34:03,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:03,786 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:03,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:03,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:34:03,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:03,883 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 02:34:03,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:03,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:03,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121516528] [2023-11-29 02:34:03,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121516528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:03,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:03,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:34:03,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743173306] [2023-11-29 02:34:03,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:03,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:34:03,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:03,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:34:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:34:03,885 INFO L87 Difference]: Start difference. First operand 98 states and 120 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:03,983 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2023-11-29 02:34:03,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:34:03,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 02:34:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:03,984 INFO L225 Difference]: With dead ends: 97 [2023-11-29 02:34:03,984 INFO L226 Difference]: Without dead ends: 97 [2023-11-29 02:34:03,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 02:34:03,985 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 10 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:03,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 105 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:34:03,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-29 02:34:03,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-29 02:34:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.7758620689655173) internal successors, (103), 83 states have internal predecessors, (103), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:34:03,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2023-11-29 02:34:03,992 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 117 transitions. Word has length 14 [2023-11-29 02:34:03,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:03,992 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 117 transitions. [2023-11-29 02:34:03,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:03,992 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 117 transitions. [2023-11-29 02:34:03,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 02:34:03,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:03,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:03,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:04,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:04,193 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting list_add_tailErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:04,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:04,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1017524744, now seen corresponding path program 1 times [2023-11-29 02:34:04,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:04,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011677992] [2023-11-29 02:34:04,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:04,195 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 02:34:04,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:04,195 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:04,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:04,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:34:04,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:04,369 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 02:34:04,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:04,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011677992] [2023-11-29 02:34:04,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011677992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:04,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:04,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:34:04,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625812646] [2023-11-29 02:34:04,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:04,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:34:04,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:04,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:34:04,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:34:04,371 INFO L87 Difference]: Start difference. First operand 97 states and 117 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:04,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:04,746 INFO L93 Difference]: Finished difference Result 103 states and 116 transitions. [2023-11-29 02:34:04,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:34:04,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 02:34:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:04,748 INFO L225 Difference]: With dead ends: 103 [2023-11-29 02:34:04,748 INFO L226 Difference]: Without dead ends: 103 [2023-11-29 02:34:04,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:34:04,749 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 49 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:04,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 438 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:34:04,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-29 02:34:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2023-11-29 02:34:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.7586206896551724) internal successors, (102), 83 states have internal predecessors, (102), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:34:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 116 transitions. [2023-11-29 02:34:04,755 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 116 transitions. Word has length 14 [2023-11-29 02:34:04,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:04,755 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 116 transitions. [2023-11-29 02:34:04,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:04,756 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 116 transitions. [2023-11-29 02:34:04,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 02:34:04,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:04,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:04,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:04,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:04,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting list_add_tailErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:04,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1478496001, now seen corresponding path program 1 times [2023-11-29 02:34:04,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:04,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331386219] [2023-11-29 02:34:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:04,958 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 02:34:04,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:04,959 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:04,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:05,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:34:05,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:05,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:05,115 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 02:34:05,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:05,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:05,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331386219] [2023-11-29 02:34:05,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331386219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:05,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:05,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:34:05,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180176238] [2023-11-29 02:34:05,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:05,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:34:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:34:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:34:05,117 INFO L87 Difference]: Start difference. First operand 97 states and 116 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:05,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:05,433 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2023-11-29 02:34:05,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:34:05,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-29 02:34:05,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:05,435 INFO L225 Difference]: With dead ends: 102 [2023-11-29 02:34:05,435 INFO L226 Difference]: Without dead ends: 102 [2023-11-29 02:34:05,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:34:05,436 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:05,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 222 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:34:05,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-29 02:34:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 96. [2023-11-29 02:34:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 82 states have internal predecessors, (97), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:34:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2023-11-29 02:34:05,442 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 15 [2023-11-29 02:34:05,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:05,442 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2023-11-29 02:34:05,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:05,442 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2023-11-29 02:34:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 02:34:05,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:05,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:05,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 02:34:05,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:05,647 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting list_add_tailErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:05,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1478496002, now seen corresponding path program 1 times [2023-11-29 02:34:05,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:05,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286867078] [2023-11-29 02:34:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:05,648 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 02:34:05,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:05,649 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:05,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:05,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:34:05,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:05,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:34:05,867 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 02:34:05,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:05,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:05,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286867078] [2023-11-29 02:34:05,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286867078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:05,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:05,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:34:05,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774409607] [2023-11-29 02:34:05,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:05,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:34:05,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:05,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:34:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:34:05,869 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:06,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:06,214 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2023-11-29 02:34:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:34:06,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-29 02:34:06,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:06,216 INFO L225 Difference]: With dead ends: 100 [2023-11-29 02:34:06,216 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 02:34:06,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:34:06,217 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 24 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:06,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 236 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:34:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 02:34:06,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2023-11-29 02:34:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.603448275862069) internal successors, (93), 82 states have internal predecessors, (93), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:34:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions. [2023-11-29 02:34:06,222 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 107 transitions. Word has length 15 [2023-11-29 02:34:06,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:06,222 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 107 transitions. [2023-11-29 02:34:06,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:06,222 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 107 transitions. [2023-11-29 02:34:06,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 02:34:06,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:06,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:06,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 02:34:06,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:06,423 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting list_add_tailErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:06,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:06,424 INFO L85 PathProgramCache]: Analyzing trace with hash -799516636, now seen corresponding path program 1 times [2023-11-29 02:34:06,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:06,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260710955] [2023-11-29 02:34:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:06,424 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 02:34:06,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:06,425 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:06,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:06,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:34:06,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:06,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:06,655 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 13 treesize of output 9 [2023-11-29 02:34:06,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 02:34:06,747 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:34:06,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:34:06,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-11-29 02:34:06,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:34:06,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2023-11-29 02:34:06,960 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 02:34:06,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:06,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:06,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260710955] [2023-11-29 02:34:06,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260710955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:06,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:06,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:34:06,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009017728] [2023-11-29 02:34:06,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:06,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:34:06,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:06,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:34:06,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:34:06,962 INFO L87 Difference]: Start difference. First operand 96 states and 107 transitions. Second operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:07,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:07,898 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2023-11-29 02:34:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:34:07,899 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-29 02:34:07,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:07,901 INFO L225 Difference]: With dead ends: 119 [2023-11-29 02:34:07,901 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 02:34:07,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:34:07,902 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 33 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:07,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 354 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:34:07,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 02:34:07,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2023-11-29 02:34:07,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 76 states have (on average 1.513157894736842) internal successors, (115), 100 states have internal predecessors, (115), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:34:07,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 133 transitions. [2023-11-29 02:34:07,908 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 133 transitions. Word has length 17 [2023-11-29 02:34:07,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:07,909 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 133 transitions. [2023-11-29 02:34:07,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 133 transitions. [2023-11-29 02:34:07,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 02:34:07,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:07,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:07,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:08,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:08,110 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting list_add_tailErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:08,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash -799516635, now seen corresponding path program 1 times [2023-11-29 02:34:08,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:08,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311034069] [2023-11-29 02:34:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:08,111 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 02:34:08,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:08,112 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:08,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:08,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-29 02:34:08,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:08,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:08,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:34:08,438 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 11 treesize of output 7 [2023-11-29 02:34:08,449 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 11 treesize of output 7 [2023-11-29 02:34:08,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:34:08,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:34:08,608 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:34:08,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:34:08,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:34:08,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:34:08,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:34:08,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 02:34:08,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:34:08,947 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 02:34:08,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:34:08,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:08,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311034069] [2023-11-29 02:34:08,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311034069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:34:08,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:34:08,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:34:08,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770681833] [2023-11-29 02:34:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:34:08,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:34:08,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:08,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:34:08,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:34:08,949 INFO L87 Difference]: Start difference. First operand 116 states and 133 transitions. Second operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:10,113 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2023-11-29 02:34:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:34:10,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-29 02:34:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:10,115 INFO L225 Difference]: With dead ends: 116 [2023-11-29 02:34:10,115 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 02:34:10,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:34:10,116 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 23 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:10,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 366 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:34:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 02:34:10,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-29 02:34:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 76 states have (on average 1.5) internal successors, (114), 100 states have internal predecessors, (114), 9 states have call successors, (9), 8 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 02:34:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 132 transitions. [2023-11-29 02:34:10,123 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 132 transitions. Word has length 17 [2023-11-29 02:34:10,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:10,123 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 132 transitions. [2023-11-29 02:34:10,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:34:10,123 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 132 transitions. [2023-11-29 02:34:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 02:34:10,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:10,124 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:10,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:10,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:10,325 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:10,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:10,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1100203245, now seen corresponding path program 1 times [2023-11-29 02:34:10,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:10,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173947386] [2023-11-29 02:34:10,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:10,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:34:10,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:10,327 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:10,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:10,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:34:10,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:10,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:34:10,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:10,627 WARN L876 $PredicateComparison]: unable to prove that (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |create_sub_list_insert_sub_~sub~0#1.base| (select |c_#length| |create_sub_list_insert_sub_~sub~0#1.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |create_sub_list_insert_sub_~sub~0#1.base|)))) is different from true [2023-11-29 02:34:10,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:34:10,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:34:10,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:34:10,728 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:34:10,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:34:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:10,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:34:15,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173947386] [2023-11-29 02:34:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173947386] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:34:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2121194026] [2023-11-29 02:34:15,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:15,132 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:34:15,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:34:15,133 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:34:15,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-29 02:34:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:15,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 02:34:15,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:15,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:15,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:34:15,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:34:15,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:34:15,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:34:15,985 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:34:15,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:34:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:15,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:34:16,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2121194026] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:34:16,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:34:16,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12] total 13 [2023-11-29 02:34:16,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169252396] [2023-11-29 02:34:16,531 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:34:16,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:34:16,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:16,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:34:16,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=264, Unknown=2, NotChecked=32, Total=342 [2023-11-29 02:34:16,533 INFO L87 Difference]: Start difference. First operand 116 states and 132 transitions. Second operand has 14 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:34:18,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:18,083 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2023-11-29 02:34:18,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:34:18,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2023-11-29 02:34:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:18,085 INFO L225 Difference]: With dead ends: 143 [2023-11-29 02:34:18,085 INFO L226 Difference]: Without dead ends: 143 [2023-11-29 02:34:18,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=80, Invalid=474, Unknown=2, NotChecked=44, Total=600 [2023-11-29 02:34:18,086 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 67 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:18,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 225 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 554 Invalid, 0 Unknown, 102 Unchecked, 1.2s Time] [2023-11-29 02:34:18,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-29 02:34:18,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 124. [2023-11-29 02:34:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 82 states have (on average 1.475609756097561) internal successors, (121), 105 states have internal predecessors, (121), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 02:34:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2023-11-29 02:34:18,091 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 25 [2023-11-29 02:34:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:18,091 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2023-11-29 02:34:18,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:34:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2023-11-29 02:34:18,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 02:34:18,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:18,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:18,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:18,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-29 02:34:18,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 02:34:18,493 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting list_add_tailErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:18,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:18,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1756385434, now seen corresponding path program 1 times [2023-11-29 02:34:18,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:18,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518746220] [2023-11-29 02:34:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:18,494 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 02:34:18,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:18,495 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:18,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:18,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 76 conjunts are in the unsatisfiable core [2023-11-29 02:34:18,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:18,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:18,965 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 11 treesize of output 7 [2023-11-29 02:34:18,976 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 11 treesize of output 7 [2023-11-29 02:34:19,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:34:19,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:34:19,091 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 02:34:19,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 02:34:19,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:34:19,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:34:19,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 02:34:19,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:34:20,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:34:20,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 73 [2023-11-29 02:34:20,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:34:20,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-29 02:34:20,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-29 02:34:20,440 INFO L349 Elim1Store]: treesize reduction 156, result has 25.4 percent of original size [2023-11-29 02:34:20,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 46 treesize of output 76 [2023-11-29 02:34:20,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2023-11-29 02:34:21,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2023-11-29 02:34:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:21,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:34:26,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:34:26,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518746220] [2023-11-29 02:34:26,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518746220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:34:26,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [15037823] [2023-11-29 02:34:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:26,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:34:26,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:34:26,973 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:34:26,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-29 02:34:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:27,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 78 conjunts are in the unsatisfiable core [2023-11-29 02:34:27,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:27,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:27,713 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 11 treesize of output 7 [2023-11-29 02:34:27,720 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 11 treesize of output 7 [2023-11-29 02:34:27,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:34:27,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:34:27,815 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 02:34:27,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 02:34:27,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:34:27,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:34:27,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 02:34:27,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:34:28,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 73 [2023-11-29 02:34:28,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:34:28,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-29 02:34:28,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-29 02:34:28,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:34:28,810 INFO L349 Elim1Store]: treesize reduction 156, result has 25.4 percent of original size [2023-11-29 02:34:28,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 46 treesize of output 76 [2023-11-29 02:34:28,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2023-11-29 02:34:29,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2023-11-29 02:34:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:29,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:34:34,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [15037823] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:34:34,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:34:34,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2023-11-29 02:34:34,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507941967] [2023-11-29 02:34:34,534 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:34:34,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 02:34:34,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:34:34,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 02:34:34,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=662, Unknown=16, NotChecked=0, Total=756 [2023-11-29 02:34:34,536 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 02:34:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:34:39,783 INFO L93 Difference]: Finished difference Result 136 states and 154 transitions. [2023-11-29 02:34:39,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 02:34:39,784 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-29 02:34:39,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:34:39,785 INFO L225 Difference]: With dead ends: 136 [2023-11-29 02:34:39,785 INFO L226 Difference]: Without dead ends: 136 [2023-11-29 02:34:39,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=198, Invalid=1503, Unknown=21, NotChecked=0, Total=1722 [2023-11-29 02:34:39,786 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 33 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:34:39,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 481 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 748 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 02:34:39,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-29 02:34:39,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2023-11-29 02:34:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 115 states have internal predecessors, (131), 11 states have call successors, (11), 10 states have call predecessors, (11), 8 states have return successors, (12), 9 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 02:34:39,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 154 transitions. [2023-11-29 02:34:39,793 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 154 transitions. Word has length 30 [2023-11-29 02:34:39,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:34:39,793 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 154 transitions. [2023-11-29 02:34:39,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 02:34:39,793 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 154 transitions. [2023-11-29 02:34:39,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 02:34:39,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:34:39,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:34:39,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-11-29 02:34:39,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:40,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:40,195 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting list_add_tailErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:34:40,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:34:40,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1756385433, now seen corresponding path program 1 times [2023-11-29 02:34:40,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:34:40,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450493122] [2023-11-29 02:34:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:34:40,196 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 02:34:40,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:34:40,197 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:40,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:34:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:34:40,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 94 conjunts are in the unsatisfiable core [2023-11-29 02:34:40,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:34:40,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:34:40,670 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 11 treesize of output 7 [2023-11-29 02:34:40,677 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 11 treesize of output 7 [2023-11-29 02:34:40,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:34:40,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:34:40,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:34:40,826 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:34:40,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:34:40,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:34:40,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:34:41,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 02:34:41,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:34:42,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 116 [2023-11-29 02:34:42,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:34:42,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-29 02:34:42,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-29 02:34:42,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 62 [2023-11-29 02:34:42,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:34:42,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 19 [2023-11-29 02:34:42,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-29 02:34:42,713 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2023-11-29 02:34:42,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 26 [2023-11-29 02:34:42,758 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:34:42,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:34:42,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-29 02:34:42,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:34:43,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2023-11-29 02:34:43,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:34:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:34:43,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:34:44,594 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~head#1.offset|))) (and (forall ((v_ArrVal_857 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_858 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_857) |c_create_sub_list_insert_sub_~head#1.base|) .cse0) (_ bv4 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_858) |c_create_sub_list_insert_sub_~head#1.base|) .cse0)))) (forall ((v_ArrVal_857 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_857) |c_create_sub_list_insert_sub_~head#1.base|) .cse0))) (bvule .cse1 (bvadd .cse1 (_ bv4 32))))))) is different from false [2023-11-29 02:34:51,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:34:51,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 295 treesize of output 319 [2023-11-29 02:35:11,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:35:11,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450493122] [2023-11-29 02:35:11,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450493122] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:35:11,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [960934927] [2023-11-29 02:35:11,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:35:11,913 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:35:11,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:35:11,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:35:11,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-29 02:35:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:35:12,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 97 conjunts are in the unsatisfiable core [2023-11-29 02:35:12,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:35:12,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:35:13,063 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 11 treesize of output 7 [2023-11-29 02:35:13,084 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 11 treesize of output 7 [2023-11-29 02:35:13,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:35:13,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:35:13,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:35:13,397 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 02:35:13,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 02:35:14,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:35:14,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:35:14,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 02:35:14,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:35:22,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 134 [2023-11-29 02:35:23,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 62 [2023-11-29 02:35:23,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 58 [2023-11-29 02:35:23,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:35:23,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-29 02:35:23,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-29 02:35:24,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:35:24,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:35:24,119 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-29 02:35:24,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 21 [2023-11-29 02:35:24,344 INFO L349 Elim1Store]: treesize reduction 72, result has 22.6 percent of original size [2023-11-29 02:35:24,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 38 treesize of output 44 [2023-11-29 02:35:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:35:25,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2023-11-29 02:35:25,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2023-11-29 02:35:25,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2023-11-29 02:35:25,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2023-11-29 02:35:25,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:35:25,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:35:25,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:35:26,193 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~head#1.offset|))) (and (forall ((v_ArrVal_990 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_990) |c_create_sub_list_insert_sub_~head#1.base|) .cse1))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_ArrVal_990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_989 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_990) |c_create_sub_list_insert_sub_~head#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_989) |c_create_sub_list_insert_sub_~head#1.base|) .cse1)))))) is different from false [2023-11-29 02:35:39,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [960934927] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:35:39,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:35:39,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2023-11-29 02:35:39,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737759120] [2023-11-29 02:35:39,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:35:39,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 02:35:39,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:35:39,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 02:35:39,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1203, Unknown=28, NotChecked=142, Total=1482 [2023-11-29 02:35:39,510 INFO L87 Difference]: Start difference. First operand 135 states and 154 transitions. Second operand has 29 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:36:32,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:36:32,662 INFO L93 Difference]: Finished difference Result 136 states and 153 transitions. [2023-11-29 02:36:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:36:32,663 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2023-11-29 02:36:32,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:36:32,664 INFO L225 Difference]: With dead ends: 136 [2023-11-29 02:36:32,665 INFO L226 Difference]: Without dead ends: 136 [2023-11-29 02:36:32,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 73.9s TimeCoverageRelationStatistics Valid=249, Invalid=2587, Unknown=34, NotChecked=210, Total=3080 [2023-11-29 02:36:32,666 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 36 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 18 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:36:32,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 624 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1089 Invalid, 5 Unknown, 0 Unchecked, 19.4s Time] [2023-11-29 02:36:32,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-29 02:36:32,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-11-29 02:36:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 116 states have internal predecessors, (130), 11 states have call successors, (11), 10 states have call predecessors, (11), 9 states have return successors, (12), 9 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 02:36:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 153 transitions. [2023-11-29 02:36:32,672 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 153 transitions. Word has length 30 [2023-11-29 02:36:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:36:32,672 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 153 transitions. [2023-11-29 02:36:32,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:36:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 153 transitions. [2023-11-29 02:36:32,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 02:36:32,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:36:32,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:36:32,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-29 02:36:32,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-11-29 02:36:33,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 02:36:33,074 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting list_add_tailErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:36:33,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:36:33,075 INFO L85 PathProgramCache]: Analyzing trace with hash 178425632, now seen corresponding path program 1 times [2023-11-29 02:36:33,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:36:33,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994926307] [2023-11-29 02:36:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:36:33,075 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 02:36:33,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:36:33,076 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:36:33,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (21)] Waiting until timeout for monitored process [2023-11-29 02:36:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:36:33,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:36:33,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:36:35,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:36:35,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:36:35,476 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:36:35,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:36:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:36:36,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:36:40,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2023-11-29 02:36:42,969 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:36:42,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2023-11-29 02:36:43,218 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:36:43,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2023-11-29 02:36:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:36:43,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:36:43,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994926307] [2023-11-29 02:36:43,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994926307] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:36:43,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:36:43,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2023-11-29 02:36:43,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315665534] [2023-11-29 02:36:43,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:36:43,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:36:43,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:36:43,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:36:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:36:43,390 INFO L87 Difference]: Start difference. First operand 136 states and 153 transitions. Second operand has 23 states, 20 states have (on average 1.8) internal successors, (36), 17 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:36:50,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:36:54,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:36:58,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:37:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:37:11,220 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2023-11-29 02:37:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:37:11,221 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 1.8) internal successors, (36), 17 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2023-11-29 02:37:11,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:37:11,222 INFO L225 Difference]: With dead ends: 140 [2023-11-29 02:37:11,223 INFO L226 Difference]: Without dead ends: 140 [2023-11-29 02:37:11,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=168, Invalid=1022, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 02:37:11,224 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 132 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:37:11,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 668 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 824 Invalid, 2 Unknown, 0 Unchecked, 22.3s Time] [2023-11-29 02:37:11,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-29 02:37:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2023-11-29 02:37:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 90 states have (on average 1.4) internal successors, (126), 114 states have internal predecessors, (126), 11 states have call successors, (11), 10 states have call predecessors, (11), 9 states have return successors, (12), 9 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 02:37:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2023-11-29 02:37:11,230 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 32 [2023-11-29 02:37:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:37:11,231 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2023-11-29 02:37:11,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 1.8) internal successors, (36), 17 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:37:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2023-11-29 02:37:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 02:37:11,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:37:11,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:37:11,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (21)] Ended with exit code 0 [2023-11-29 02:37:11,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:37:11,433 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting list_add_tailErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:37:11,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:37:11,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1236230279, now seen corresponding path program 1 times [2023-11-29 02:37:11,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:37:11,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116918208] [2023-11-29 02:37:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:37:11,434 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 02:37:11,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:37:11,435 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:37:11,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (22)] Waiting until timeout for monitored process [2023-11-29 02:37:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:37:11,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:37:11,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:37:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:37:12,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:37:12,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:37:12,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116918208] [2023-11-29 02:37:12,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116918208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:37:12,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:37:12,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:37:12,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570362042] [2023-11-29 02:37:12,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:37:12,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:37:12,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:37:12,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:37:12,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:37:12,636 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:37:15,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:37:15,351 INFO L93 Difference]: Finished difference Result 136 states and 147 transitions. [2023-11-29 02:37:15,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:37:15,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-29 02:37:15,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:37:15,353 INFO L225 Difference]: With dead ends: 136 [2023-11-29 02:37:15,353 INFO L226 Difference]: Without dead ends: 136 [2023-11-29 02:37:15,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:37:15,354 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 39 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:37:15,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 513 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:37:15,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-29 02:37:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2023-11-29 02:37:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 114 states have internal predecessors, (124), 11 states have call successors, (11), 10 states have call predecessors, (11), 9 states have return successors, (12), 9 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 02:37:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2023-11-29 02:37:15,360 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 33 [2023-11-29 02:37:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:37:15,360 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2023-11-29 02:37:15,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:37:15,360 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2023-11-29 02:37:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 02:37:15,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:37:15,361 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:37:15,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (22)] Ended with exit code 0 [2023-11-29 02:37:15,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:37:15,562 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting list_add_tailErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:37:15,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:37:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash -808311482, now seen corresponding path program 1 times [2023-11-29 02:37:15,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:37:15,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615741484] [2023-11-29 02:37:15,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:37:15,563 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 02:37:15,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:37:15,564 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:37:15,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (23)] Waiting until timeout for monitored process [2023-11-29 02:37:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:37:15,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 02:37:15,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:37:17,526 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 11 treesize of output 7 [2023-11-29 02:37:17,590 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 11 treesize of output 7 [2023-11-29 02:37:17,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:37:18,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:37:18,550 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:37:18,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:37:19,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:37:19,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:37:20,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 02:37:20,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:37:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:37:21,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:37:21,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:37:21,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 50 [2023-11-29 02:37:23,888 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~head#1.offset|))) (and (forall ((v_ArrVal_1291 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_1291) |c_create_sub_list_insert_sub_~head#1.base|) .cse0) (_ bv4 32)) (bvadd (_ bv8 32) |c_create_sub_list_insert_sub_~head#1.offset|))) (forall ((v_ArrVal_1292 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_create_sub_list_insert_sub_~head#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_1292) |c_create_sub_list_insert_sub_~head#1.base|) .cse0))) (forall ((v_ArrVal_1291 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_1291) |c_create_sub_list_insert_sub_~head#1.base|) .cse0))) (bvule .cse1 (bvadd .cse1 (_ bv4 32))))))) is different from false [2023-11-29 02:37:24,191 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) |c_create_sub_list_~sub#1.offset|))) (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_48| (_ BitVec 32))) (or (forall ((v_ArrVal_1291 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |v_create_sub_list_insert_sub_~sub~0#1.base_48| v_ArrVal_1291) |c_create_sub_list_~sub#1.base|) .cse1))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (not (= (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_48|) (_ bv0 1))))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_48| (_ BitVec 32))) (or (forall ((v_ArrVal_1292 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |v_create_sub_list_insert_sub_~sub~0#1.base_48| v_ArrVal_1292) |c_create_sub_list_~sub#1.base|) .cse1) |c_create_sub_list_~sub#1.base|)) (not (= (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_48|) (_ bv0 1))))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_48| (_ BitVec 32))) (or (forall ((v_ArrVal_1291 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$#1.offset| |v_create_sub_list_insert_sub_~sub~0#1.base_48| v_ArrVal_1291) |c_create_sub_list_~sub#1.base|) .cse1)) (bvadd (_ bv8 32) |c_create_sub_list_~sub#1.offset|))) (not (= (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_48|) (_ bv0 1))))))) is different from false [2023-11-29 02:37:25,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:37:25,699 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 42 [2023-11-29 02:37:25,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2023-11-29 02:37:25,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 02:37:25,888 INFO L349 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2023-11-29 02:37:25,888 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 1 [2023-11-29 02:37:26,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:37:26,004 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2023-11-29 02:37:26,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:37:26,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 02:37:29,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:37:29,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 62 [2023-11-29 02:37:30,513 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:37:30,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2023-11-29 02:37:30,751 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:37:30,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2023-11-29 02:37:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-11-29 02:37:30,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:37:30,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615741484] [2023-11-29 02:37:30,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615741484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:37:30,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:37:30,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 28 [2023-11-29 02:37:30,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497834684] [2023-11-29 02:37:30,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:37:30,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 02:37:30,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:37:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 02:37:30,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=628, Unknown=6, NotChecked=102, Total=812 [2023-11-29 02:37:30,949 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 29 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:37:36,810 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 [1] [2023-11-29 02:37:40,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:37:43,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:37:48,964 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 [1] [2023-11-29 02:38:25,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:38:25,390 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2023-11-29 02:38:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 02:38:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 36 [2023-11-29 02:38:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:38:25,393 INFO L225 Difference]: With dead ends: 134 [2023-11-29 02:38:25,393 INFO L226 Difference]: Without dead ends: 134 [2023-11-29 02:38:25,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=271, Invalid=1801, Unknown=6, NotChecked=178, Total=2256 [2023-11-29 02:38:25,395 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 91 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 34 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 150 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:38:25,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 945 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 923 Invalid, 11 Unknown, 150 Unchecked, 31.7s Time] [2023-11-29 02:38:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-29 02:38:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-11-29 02:38:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 114 states have internal predecessors, (123), 11 states have call successors, (11), 10 states have call predecessors, (11), 9 states have return successors, (12), 9 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 02:38:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 146 transitions. [2023-11-29 02:38:25,402 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 146 transitions. Word has length 36 [2023-11-29 02:38:25,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:38:25,402 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 146 transitions. [2023-11-29 02:38:25,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:38:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 146 transitions. [2023-11-29 02:38:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 02:38:25,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:38:25,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:38:25,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (23)] Ended with exit code 0 [2023-11-29 02:38:25,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:38:25,604 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:38:25,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:38:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1662469585, now seen corresponding path program 1 times [2023-11-29 02:38:25,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:38:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445837092] [2023-11-29 02:38:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:38:25,605 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 02:38:25,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:38:25,605 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:38:25,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (24)] Waiting until timeout for monitored process [2023-11-29 02:38:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:38:25,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 02:38:25,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:38:25,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:38:25,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:38:26,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:38:27,866 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:38:27,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:38:28,054 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:38:28,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:38:28,146 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((|v_create_sub_list_insert_sub_~sub~0#1.base_55| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_55| |c_create_sub_list_#in~sub#1.base|)) (= |c_#length| (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_55| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_55|))) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_55|)))) (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_55| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_55| |create_sub_list_insert_sub_~sub~0#1.base|)) (not (= |c_create_sub_list_#in~sub#1.base| |create_sub_list_insert_sub_~sub~0#1.base|)) (= |c_#length| (store (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_55| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_55|)) |create_sub_list_insert_sub_~sub~0#1.base| (select |c_#length| |create_sub_list_insert_sub_~sub~0#1.base|))) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_55|))))) is different from true [2023-11-29 02:38:28,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-29 02:38:29,573 INFO L349 Elim1Store]: treesize reduction 71, result has 15.5 percent of original size [2023-11-29 02:38:29,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 79 [2023-11-29 02:38:29,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:38:29,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 63 [2023-11-29 02:38:32,940 INFO L349 Elim1Store]: treesize reduction 72, result has 6.5 percent of original size [2023-11-29 02:38:32,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 19 [2023-11-29 02:38:33,159 INFO L349 Elim1Store]: treesize reduction 87, result has 1.1 percent of original size [2023-11-29 02:38:33,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 38 treesize of output 1 [2023-11-29 02:38:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 5 not checked. [2023-11-29 02:38:33,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:38:36,153 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:38:36,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2023-11-29 02:38:41,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:38:41,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445837092] [2023-11-29 02:38:41,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445837092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:38:41,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [861472769] [2023-11-29 02:38:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:38:41,983 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:38:41,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:38:41,984 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:38:41,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-29 02:38:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:38:42,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-29 02:38:42,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:38:42,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:38:42,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:38:44,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:38:45,722 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:38:45,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:38:45,986 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:38:45,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:38:47,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:38:51,107 INFO L349 Elim1Store]: treesize reduction 71, result has 15.5 percent of original size [2023-11-29 02:38:51,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 79 [2023-11-29 02:38:51,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:38:51,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 63 [2023-11-29 02:38:53,305 INFO L349 Elim1Store]: treesize reduction 47, result has 2.1 percent of original size [2023-11-29 02:38:53,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 11 [2023-11-29 02:38:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:38:53,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:38:55,832 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:38:55,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2023-11-29 02:39:04,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [861472769] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:39:04,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:39:04,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 20 [2023-11-29 02:39:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223176974] [2023-11-29 02:39:04,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:39:04,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 02:39:04,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:39:04,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 02:39:04,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=536, Unknown=5, NotChecked=46, Total=650 [2023-11-29 02:39:04,564 INFO L87 Difference]: Start difference. First operand 134 states and 146 transitions. Second operand has 21 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:39:12,265 WARN L876 $PredicateComparison]: unable to prove that (and (bvule (bvadd (_ bv8 32) |c_create_sub_list_#in~sub#1.offset|) (select |c_#length| |c_create_sub_list_#in~sub#1.base|)) (or (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_66| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) (not (= |c_create_sub_list_insert_sub_~head#1.base| |create_sub_list_insert_sub_~sub~0#1.base|)) (= (store (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_66| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) |create_sub_list_insert_sub_~sub~0#1.base| (select |c_#length| |create_sub_list_insert_sub_~sub~0#1.base|)) |c_#length|) (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_66| |create_sub_list_insert_sub_~sub~0#1.base|)))) (exists ((|v_create_sub_list_insert_sub_~sub~0#1.base_66| (_ BitVec 32))) (and (not (= |c_create_sub_list_insert_sub_~head#1.base| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) (= (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_66| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) |c_#length|)))) (or (exists ((|v_create_sub_list_insert_sub_~sub~0#1.base_55| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_55| |c_create_sub_list_#in~sub#1.base|)) (= |c_#length| (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_55| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_55|))) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_55|)))) (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_55| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_55| |create_sub_list_insert_sub_~sub~0#1.base|)) (not (= |c_create_sub_list_#in~sub#1.base| |create_sub_list_insert_sub_~sub~0#1.base|)) (= |c_#length| (store (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_55| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_55|)) |create_sub_list_insert_sub_~sub~0#1.base| (select |c_#length| |create_sub_list_insert_sub_~sub~0#1.base|))) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_55|))))) (= |c_create_sub_list_insert_sub_~head#1.base| |c_create_sub_list_#in~sub#1.base|) (= |c_create_sub_list_insert_sub_~head#1.offset| |c_create_sub_list_#in~sub#1.offset|) (or (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_66| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) (= (store (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_66| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) |create_sub_list_insert_sub_~sub~0#1.base| (select |c_#length| |create_sub_list_insert_sub_~sub~0#1.base|)) |c_#length|) (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_66| |create_sub_list_insert_sub_~sub~0#1.base|)) (not (= |c_create_sub_list_#in~sub#1.base| |create_sub_list_insert_sub_~sub~0#1.base|)))) (exists ((|v_create_sub_list_insert_sub_~sub~0#1.base_66| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_66| |c_create_sub_list_#in~sub#1.base|)) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) (= (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_66| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) |c_#length|))))) is different from true [2023-11-29 02:39:14,370 WARN L876 $PredicateComparison]: unable to prove that (and (bvule (bvadd (_ bv8 32) |c_create_sub_list_#in~sub#1.offset|) (select |c_#length| |c_create_sub_list_#in~sub#1.base|)) (or (exists ((|v_create_sub_list_insert_sub_~sub~0#1.base_55| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_55| |c_create_sub_list_#in~sub#1.base|)) (= |c_#length| (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_55| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_55|))) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_55|)))) (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_55| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_55| |create_sub_list_insert_sub_~sub~0#1.base|)) (not (= |c_create_sub_list_#in~sub#1.base| |create_sub_list_insert_sub_~sub~0#1.base|)) (= |c_#length| (store (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_55| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_55|)) |create_sub_list_insert_sub_~sub~0#1.base| (select |c_#length| |create_sub_list_insert_sub_~sub~0#1.base|))) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_55|))))) (or (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_66| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) (= (store (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_66| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) |create_sub_list_insert_sub_~sub~0#1.base| (select |c_#length| |create_sub_list_insert_sub_~sub~0#1.base|)) |c_#length|) (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_66| |create_sub_list_insert_sub_~sub~0#1.base|)) (not (= |c_create_sub_list_#in~sub#1.base| |create_sub_list_insert_sub_~sub~0#1.base|)))) (exists ((|v_create_sub_list_insert_sub_~sub~0#1.base_66| (_ BitVec 32))) (and (not (= |v_create_sub_list_insert_sub_~sub~0#1.base_66| |c_create_sub_list_#in~sub#1.base|)) (= (_ bv0 1) (select |c_old(#valid)| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) (= (store |c_old(#length)| |v_create_sub_list_insert_sub_~sub~0#1.base_66| (select |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_66|)) |c_#length|))))) is different from true [2023-11-29 02:39:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:21,123 INFO L93 Difference]: Finished difference Result 169 states and 193 transitions. [2023-11-29 02:39:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:39:21,126 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 38 [2023-11-29 02:39:21,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:21,128 INFO L225 Difference]: With dead ends: 169 [2023-11-29 02:39:21,128 INFO L226 Difference]: Without dead ends: 169 [2023-11-29 02:39:21,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=125, Invalid=936, Unknown=7, NotChecked=192, Total=1260 [2023-11-29 02:39:21,129 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 87 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 282 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:21,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 307 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 858 Invalid, 3 Unknown, 282 Unchecked, 11.5s Time] [2023-11-29 02:39:21,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-29 02:39:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 136. [2023-11-29 02:39:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 115 states have internal predecessors, (126), 11 states have call successors, (11), 10 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 02:39:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2023-11-29 02:39:21,136 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 38 [2023-11-29 02:39:21,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:21,136 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2023-11-29 02:39:21,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:39:21,137 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2023-11-29 02:39:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 02:39:21,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:21,138 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:39:21,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (24)] Ended with exit code 0 [2023-11-29 02:39:21,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-11-29 02:39:21,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 02:39:21,539 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting list_add_tailErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:39:21,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1581000435, now seen corresponding path program 1 times [2023-11-29 02:39:21,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:39:21,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467840739] [2023-11-29 02:39:21,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:21,540 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 02:39:21,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:39:21,541 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:39:21,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (26)] Waiting until timeout for monitored process [2023-11-29 02:39:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:21,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:39:21,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:21,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:39:22,325 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-29 02:39:22,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 02:39:22,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-29 02:39:23,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:39:24,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:24,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2023-11-29 02:39:24,551 WARN L876 $PredicateComparison]: unable to prove that (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |create_sub_list_insert_sub_~sub~0#1.base| (_ bv1 1)))) is different from true [2023-11-29 02:39:24,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:39:24,941 WARN L876 $PredicateComparison]: unable to prove that (and (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32))) (= (_ bv0 1) (bvadd (select |c_#valid| |create_sub_list_insert_sub_~sub~0#1.base|) (_ bv1 1)))) (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |create_sub_list_insert_sub_~sub~0#1.base| (_ bv1 1))))) is different from true [2023-11-29 02:39:25,199 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 02:39:25,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-29 02:39:26,025 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2023-11-29 02:39:26,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:39:28,034 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:39:28,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467840739] [2023-11-29 02:39:28,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467840739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:39:28,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [178311746] [2023-11-29 02:39:28,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:28,035 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:39:28,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:39:28,036 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:39:28,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-29 02:39:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:29,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:39:29,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:29,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 02:39:30,001 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 02:39:30,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-29 02:39:30,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:30,614 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2023-11-29 02:39:30,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 29 [2023-11-29 02:39:31,261 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-29 02:39:31,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2023-11-29 02:39:32,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:39:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:33,020 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2023-11-29 02:39:33,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 38 [2023-11-29 02:39:33,281 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-29 02:39:33,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 20 [2023-11-29 02:39:33,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:39:34,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:34,808 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2023-11-29 02:39:34,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 38 [2023-11-29 02:39:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:39:36,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:39:37,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [178311746] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:39:37,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:39:37,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2023-11-29 02:39:37,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774645621] [2023-11-29 02:39:37,340 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:39:37,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 02:39:37,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:39:37,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 02:39:37,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=424, Unknown=3, NotChecked=86, Total=600 [2023-11-29 02:39:37,342 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 15 states have internal predecessors, (44), 6 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:39:46,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:46,108 INFO L93 Difference]: Finished difference Result 193 states and 219 transitions. [2023-11-29 02:39:46,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:39:46,109 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 15 states have internal predecessors, (44), 6 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2023-11-29 02:39:46,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:46,110 INFO L225 Difference]: With dead ends: 193 [2023-11-29 02:39:46,110 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 02:39:46,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 70 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=175, Invalid=760, Unknown=3, NotChecked=118, Total=1056 [2023-11-29 02:39:46,111 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 335 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 85 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 289 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:46,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 224 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 477 Invalid, 4 Unknown, 289 Unchecked, 6.4s Time] [2023-11-29 02:39:46,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 02:39:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 156. [2023-11-29 02:39:46,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 106 states have (on average 1.4056603773584906) internal successors, (149), 130 states have internal predecessors, (149), 14 states have call successors, (14), 11 states have call predecessors, (14), 12 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2023-11-29 02:39:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2023-11-29 02:39:46,117 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 44 [2023-11-29 02:39:46,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:46,118 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2023-11-29 02:39:46,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 15 states have internal predecessors, (44), 6 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:39:46,118 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2023-11-29 02:39:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 02:39:46,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:46,119 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:39:46,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-11-29 02:39:46,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (26)] Ended with exit code 0 [2023-11-29 02:39:46,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:39:46,519 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting list_add_tailErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:39:46,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:46,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1581000434, now seen corresponding path program 1 times [2023-11-29 02:39:46,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:39:46,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316386816] [2023-11-29 02:39:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:46,520 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 02:39:46,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:39:46,521 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:39:46,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (28)] Waiting until timeout for monitored process [2023-11-29 02:39:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:46,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 02:39:46,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:46,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:39:47,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:39:47,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:47,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:39:47,364 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:39:47,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:39:47,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-29 02:39:48,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:39:49,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:49,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:39:49,677 WARN L876 $PredicateComparison]: unable to prove that (exists ((|create_sub_list_insert_sub_~sub~0#1.base| (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |create_sub_list_insert_sub_~sub~0#1.base| (_ bv12 32)))) is different from true [2023-11-29 02:39:49,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:39:50,681 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-11-29 02:39:50,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2023-11-29 02:39:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-11-29 02:39:52,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:39:54,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:39:54,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316386816] [2023-11-29 02:39:54,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316386816] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:39:54,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [137654621] [2023-11-29 02:39:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:54,460 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:39:54,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:39:54,461 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:39:54,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-29 02:39:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:56,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:39:56,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:56,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:39:56,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:39:56,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:56,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:39:57,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-29 02:39:58,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:39:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:39:58,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:39:59,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-29 02:39:59,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-29 02:40:00,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:40:00,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 02:40:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:40:01,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:40:02,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [137654621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:40:02,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:40:02,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 18 [2023-11-29 02:40:02,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447325352] [2023-11-29 02:40:02,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:40:02,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 02:40:02,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:40:02,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 02:40:02,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=474, Unknown=6, NotChecked=44, Total=600 [2023-11-29 02:40:02,517 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 15 states have internal predecessors, (44), 6 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:40:09,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:40:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:40:19,600 INFO L93 Difference]: Finished difference Result 167 states and 191 transitions. [2023-11-29 02:40:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:40:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 15 states have internal predecessors, (44), 6 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2023-11-29 02:40:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:40:19,603 INFO L225 Difference]: With dead ends: 167 [2023-11-29 02:40:19,603 INFO L226 Difference]: Without dead ends: 167 [2023-11-29 02:40:19,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 67 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=181, Invalid=936, Unknown=9, NotChecked=64, Total=1190 [2023-11-29 02:40:19,604 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 227 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 62 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 119 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:40:19,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 268 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 793 Invalid, 45 Unknown, 119 Unchecked, 13.6s Time] [2023-11-29 02:40:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-29 02:40:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 156. [2023-11-29 02:40:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 106 states have (on average 1.3962264150943395) internal successors, (148), 130 states have internal predecessors, (148), 14 states have call successors, (14), 11 states have call predecessors, (14), 12 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2023-11-29 02:40:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2023-11-29 02:40:19,611 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 44 [2023-11-29 02:40:19,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:40:19,612 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2023-11-29 02:40:19,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.588235294117647) internal successors, (44), 15 states have internal predecessors, (44), 6 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:40:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2023-11-29 02:40:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 02:40:19,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:40:19,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:40:19,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-11-29 02:40:19,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (28)] Ended with exit code 0 [2023-11-29 02:40:20,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:40:20,013 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting list_add_tailErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:40:20,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:40:20,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1268010140, now seen corresponding path program 2 times [2023-11-29 02:40:20,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:40:20,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817840164] [2023-11-29 02:40:20,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:40:20,014 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 02:40:20,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:40:20,015 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:40:20,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (30)] Waiting until timeout for monitored process [2023-11-29 02:40:20,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:40:20,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:40:20,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 98 conjunts are in the unsatisfiable core [2023-11-29 02:40:20,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:40:20,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:40:21,222 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 11 treesize of output 7 [2023-11-29 02:40:21,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:40:21,647 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:40:21,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:40:22,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:40:23,042 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 13 treesize of output 9 [2023-11-29 02:40:23,562 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:40:23,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-29 02:40:23,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:40:24,283 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:40:24,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2023-11-29 02:40:26,426 INFO L349 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2023-11-29 02:40:26,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 46 [2023-11-29 02:40:26,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:40:27,824 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 02:40:27,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 02:40:28,844 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-29 02:40:28,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 28 [2023-11-29 02:40:28,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 02:40:29,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2023-11-29 02:40:33,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2023-11-29 02:40:33,799 INFO L349 Elim1Store]: treesize reduction 44, result has 10.2 percent of original size [2023-11-29 02:40:33,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 26 [2023-11-29 02:40:35,328 INFO L349 Elim1Store]: treesize reduction 124, result has 21.0 percent of original size [2023-11-29 02:40:35,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 60 [2023-11-29 02:40:35,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:40:36,589 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:40:36,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 25 [2023-11-29 02:40:36,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 02:40:39,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2023-11-29 02:40:39,871 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-29 02:40:39,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2023-11-29 02:40:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:40:41,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:40:48,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-11-29 02:40:53,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:40:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817840164] [2023-11-29 02:40:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817840164] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:40:53,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [755381622] [2023-11-29 02:40:53,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:40:53,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:40:53,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:40:53,660 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:40:53,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-29 02:40:54,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:40:54,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819644520] [2023-11-29 02:40:54,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:40:54,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:40:54,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:40:54,317 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:40:54,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 02:40:54,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 1 [2023-11-29 02:40:55,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:40:55,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:40:55,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 112 conjunts are in the unsatisfiable core [2023-11-29 02:40:55,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:40:55,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:40:57,634 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 11 treesize of output 7 [2023-11-29 02:40:57,679 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 11 treesize of output 7 [2023-11-29 02:40:58,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:40:58,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:40:58,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-29 02:40:59,633 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:40:59,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:41:00,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:41:00,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:41:06,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 62 [2023-11-29 02:41:06,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:41:06,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-29 02:41:06,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-29 02:41:07,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:41:08,345 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 02:41:08,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 02:41:09,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2023-11-29 02:41:09,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2023-11-29 02:41:16,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2023-11-29 02:41:16,582 INFO L349 Elim1Store]: treesize reduction 66, result has 7.0 percent of original size [2023-11-29 02:41:16,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 46 [2023-11-29 02:41:18,878 INFO L349 Elim1Store]: treesize reduction 156, result has 25.4 percent of original size [2023-11-29 02:41:18,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 46 treesize of output 76 [2023-11-29 02:41:20,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 33 [2023-11-29 02:41:24,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-11-29 02:41:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:41:25,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:41:27,849 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2424 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2424) |c_create_sub_list_insert_sub_~head#1.base|) (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~head#1.offset|))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 02:41:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819644520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:41:32,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:41:32,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27] total 51 [2023-11-29 02:41:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930113042] [2023-11-29 02:41:32,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:41:32,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 02:41:32,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:41:32,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 02:41:32,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=3789, Unknown=28, NotChecked=124, Total=4160 [2023-11-29 02:41:32,176 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand has 52 states, 45 states have (on average 1.511111111111111) internal successors, (68), 45 states have internal predecessors, (68), 8 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:41:38,969 WARN L539 Checker$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 02:41:49,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 02:42:04,939 WARN L539 Checker$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 02:42:14,633 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 02:42:46,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:42:46,570 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2023-11-29 02:42:46,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 02:42:46,571 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 45 states have (on average 1.511111111111111) internal successors, (68), 45 states have internal predecessors, (68), 8 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2023-11-29 02:42:46,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:42:46,572 INFO L225 Difference]: With dead ends: 157 [2023-11-29 02:42:46,572 INFO L226 Difference]: Without dead ends: 157 [2023-11-29 02:42:46,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2355 ImplicationChecksByTransitivity, 69.6s TimeCoverageRelationStatistics Valid=596, Invalid=7936, Unknown=28, NotChecked=182, Total=8742 [2023-11-29 02:42:46,576 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 141 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 53 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:42:46,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 764 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2579 Invalid, 6 Unknown, 0 Unchecked, 52.6s Time] [2023-11-29 02:42:46,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-29 02:42:46,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2023-11-29 02:42:46,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 106 states have (on average 1.3867924528301887) internal successors, (147), 130 states have internal predecessors, (147), 14 states have call successors, (14), 11 states have call predecessors, (14), 12 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2023-11-29 02:42:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 182 transitions. [2023-11-29 02:42:46,582 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 182 transitions. Word has length 43 [2023-11-29 02:42:46,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:42:46,582 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 182 transitions. [2023-11-29 02:42:46,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 45 states have (on average 1.511111111111111) internal successors, (68), 45 states have internal predecessors, (68), 8 states have call successors, (8), 7 states have call predecessors, (8), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:42:46,582 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 182 transitions. [2023-11-29 02:42:46,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 02:42:46,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:42:46,583 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:42:46,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 02:42:46,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (30)] Ended with exit code 0 [2023-11-29 02:42:46,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:42:46,984 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting list_add_tailErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:42:46,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:42:46,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1268010139, now seen corresponding path program 2 times [2023-11-29 02:42:46,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:42:46,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132293466] [2023-11-29 02:42:46,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:42:46,984 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 02:42:46,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:42:46,985 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:42:46,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (33)] Waiting until timeout for monitored process [2023-11-29 02:42:47,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:42:47,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:42:47,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 128 conjunts are in the unsatisfiable core [2023-11-29 02:42:47,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:42:47,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:42:48,144 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 11 treesize of output 7 [2023-11-29 02:42:48,224 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 11 treesize of output 7 [2023-11-29 02:42:48,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:42:48,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:42:48,962 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:42:48,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:42:49,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:42:49,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:42:52,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:42:52,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 62 [2023-11-29 02:42:52,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:42:52,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-29 02:42:52,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-29 02:42:52,993 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:42:52,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:42:53,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:42:53,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2023-11-29 02:42:53,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2023-11-29 02:42:55,599 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 13 treesize of output 9 [2023-11-29 02:42:56,396 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:42:56,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-29 02:42:56,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:42:57,343 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:42:57,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2023-11-29 02:42:58,233 INFO L349 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-11-29 02:42:58,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 27 [2023-11-29 02:42:58,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:42:58,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2023-11-29 02:42:59,140 INFO L349 Elim1Store]: treesize reduction 66, result has 7.0 percent of original size [2023-11-29 02:42:59,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 44 [2023-11-29 02:43:00,309 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2023-11-29 02:43:00,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 26 [2023-11-29 02:43:01,512 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:43:01,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2023-11-29 02:43:01,721 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:43:01,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 29 [2023-11-29 02:43:01,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2023-11-29 02:43:05,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 79 [2023-11-29 02:43:05,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 75 [2023-11-29 02:43:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:43:07,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:43:16,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:43:16,207 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 75 [2023-11-29 02:43:16,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:43:16,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 468 treesize of output 467 [2023-11-29 02:43:16,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 450 treesize of output 434 [2023-11-29 02:43:16,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 434 treesize of output 426 [2023-11-29 02:43:16,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 210 [2023-11-29 02:43:23,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-29 02:43:24,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 02:43:25,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 02:43:26,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 02:43:27,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 02:43:27,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:43:27,654 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 60 [2023-11-29 02:43:27,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:43:27,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 207 [2023-11-29 02:43:27,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 90 [2023-11-29 02:43:27,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 150 [2023-11-29 02:43:27,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 134 [2023-11-29 02:43:29,781 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse13 (= |c_create_sub_list_insert_sub_~sub~0#1.base| |c_create_sub_list_~sub#1.base|)) (.cse46 (select |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~head#1.base|)) (.cse47 (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~head#1.offset|))) (let ((.cse0 (bvadd (_ bv8 32) |c_create_sub_list_~sub#1.offset|)) (.cse4 (store |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~head#1.base| (store .cse46 .cse47 |c_create_sub_list_insert_sub_~sub~0#1.base|))) (.cse5 (select .cse46 .cse47)) (.cse6 (bvadd (_ bv4 32) |c_create_sub_list_~sub#1.offset|)) (.cse20 (not .cse13))) (let ((.cse31 (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse43 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse43 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) (select .cse43 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|)))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse44 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse44 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse45 (select .cse44 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (forall ((v_arrayElimCell_309 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse45)) (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) .cse45)))))))) .cse20)) (.cse12 (= .cse5 |c_create_sub_list_~sub#1.base|))) (let ((.cse21 (and (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse32 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse32 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_308 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse33 (select .cse32 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (forall ((v_arrayElimCell_309 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse33)) (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) .cse33) (bvule (bvadd v_arrayElimCell_308 (_ bv4 32)) .cse33))))))) .cse31 (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse34 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse34 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_308 (_ BitVec 32))) (let ((.cse35 (select .cse34 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) .cse35) (bvule (bvadd v_arrayElimCell_308 (_ bv4 32)) .cse35)))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|))))) .cse12) (or .cse13 (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse37 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_310 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_308 (_ BitVec 32))) (let ((.cse36 (select .cse37 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) .cse36) (bvule (bvadd v_arrayElimCell_308 (_ bv4 32)) .cse36)))) (not (bvule .cse0 (select .cse37 |c_create_sub_list_~sub#1.base|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|)))) (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse38 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse38 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_308 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse39 (select .cse38 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (forall ((v_arrayElimCell_309 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse39)) (bvule (bvadd v_arrayElimCell_308 (_ bv4 32)) .cse39))))))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse40 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_308 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_308 (_ bv4 32)) (select .cse40 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (not (bvule .cse0 (select .cse40 |c_create_sub_list_~sub#1.base|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|))))) .cse12) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse41 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse41 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_308 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_309 (_ BitVec 32))) (let ((.cse42 (select .cse41 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse42) (forall ((v_arrayElimCell_310 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) .cse42)) (bvule (bvadd v_arrayElimCell_308 (_ bv4 32)) .cse42))))))))))) (.cse22 (= |c_create_sub_list_insert_sub_~head#1.base| |c_create_sub_list_~sub#1.base|)) (.cse23 (= |c_create_sub_list_insert_sub_~head#1.offset| |c_create_sub_list_~sub#1.offset|)) (.cse17 (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (not (bvule .cse0 (select (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)) |c_create_sub_list_~sub#1.base|))))) (.cse16 (not .cse12)) (.cse3 (bvadd (_ bv8 32) |c_create_sub_list_insert_sub_~sub~0#1.offset|))) (and (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse1 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse1 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_310 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select .cse1 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) .cse2) (bvule .cse3 .cse2)))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|)))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse7 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse7 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_309 (_ BitVec 32))) (let ((.cse8 (select .cse7 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse8) (forall ((v_arrayElimCell_310 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) .cse8)) (bvule .cse3 .cse8))))))) (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse9 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse9 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse10 (select .cse9 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (forall ((v_arrayElimCell_309 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse10)) (bvule .cse3 .cse10))))))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse11 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule .cse3 (select .cse11 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (not (bvule .cse0 (select .cse11 |c_create_sub_list_~sub#1.base|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|))))) .cse12)) .cse13) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_310 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse14 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (let ((.cse15 (select .cse14 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (not (bvule .cse0 (select .cse14 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) .cse15) (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) .cse15) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|))))) .cse16) (or .cse17 (bvule (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~sub~0#1.offset|) .cse3)) (or .cse16 .cse17) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_310 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_309 (_ BitVec 32))) (let ((.cse18 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (let ((.cse19 (select .cse18 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (not (bvule .cse0 (select .cse18 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) .cse19) (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse19) (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) .cse19))))) .cse16) (or .cse17 .cse20) (or .cse21 .cse22) (not (bvule .cse0 (_ bv12 32))) (or .cse23 .cse21) (or .cse17 .cse22) (or .cse23 .cse17) (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse25 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_309 (_ BitVec 32))) (let ((.cse24 (select .cse25 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse24) (forall ((v_arrayElimCell_310 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) .cse24))))) (not (bvule .cse0 (select .cse25 |c_create_sub_list_~sub#1.base|)))))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse26 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_310 (_ BitVec 32)) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd v_arrayElimCell_310 (_ bv4 32)) (select .cse26 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (not (bvule .cse0 (select .cse26 |c_create_sub_list_~sub#1.base|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|))))) .cse16) (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse28 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse27 (select .cse28 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) .cse27) (bvule .cse3 .cse27)))) (not (bvule .cse0 (select .cse28 |c_create_sub_list_~sub#1.base|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_112| |c_create_sub_list_~sub#1.base|)))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ BitVec 32))) (let ((.cse29 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_112| (_ bv12 32)))) (or (not (bvule .cse0 (select .cse29 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2608 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_311 (_ BitVec 32)) (v_ArrVal_2593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2611 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse30 (select .cse29 (select (select (store (store (store .cse4 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2611) .cse5 v_ArrVal_2608) |v_create_sub_list_insert_sub_~sub~0#1.base_112| v_ArrVal_2593) |c_create_sub_list_~sub#1.base|) .cse6)))) (or (forall ((v_arrayElimCell_309 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_309 (_ bv4 32)) .cse30)) (bvule (bvadd v_arrayElimCell_311 (_ bv4 32)) .cse30) (bvule .cse3 .cse30))))))) .cse31) .cse12)))))) is different from false [2023-11-29 02:43:32,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:43:32,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132293466] [2023-11-29 02:43:32,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132293466] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:43:32,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1853287714] [2023-11-29 02:43:32,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:43:32,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 02:43:32,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 02:43:32,129 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 02:43:32,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-11-29 02:43:34,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:43:34,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:43:34,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 134 conjunts are in the unsatisfiable core [2023-11-29 02:43:34,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:43:34,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 02:43:34,706 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 11 treesize of output 7 [2023-11-29 02:43:34,749 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 11 treesize of output 7 [2023-11-29 02:43:34,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 02:43:34,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 02:43:35,189 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 02:43:35,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 02:43:35,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:43:35,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-29 02:43:37,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:43:37,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 69 [2023-11-29 02:43:37,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:43:37,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2023-11-29 02:43:37,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-29 02:43:37,999 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 02:43:37,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 02:43:38,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 02:43:39,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2023-11-29 02:43:39,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2023-11-29 02:43:42,994 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 13 treesize of output 9 [2023-11-29 02:43:44,362 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:43:44,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2023-11-29 02:43:44,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:43:45,605 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:43:45,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2023-11-29 02:43:46,956 INFO L349 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-11-29 02:43:46,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 27 [2023-11-29 02:43:47,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:43:48,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 46 [2023-11-29 02:43:48,578 INFO L349 Elim1Store]: treesize reduction 66, result has 7.0 percent of original size [2023-11-29 02:43:48,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 53 [2023-11-29 02:43:50,456 INFO L224 Elim1Store]: Index analysis took 186 ms [2023-11-29 02:43:50,789 INFO L349 Elim1Store]: treesize reduction 72, result has 22.6 percent of original size [2023-11-29 02:43:50,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 38 treesize of output 44 [2023-11-29 02:43:50,841 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-29 02:43:50,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2023-11-29 02:43:52,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 02:43:52,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 31 [2023-11-29 02:43:55,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2023-11-29 02:43:55,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:43:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:43:59,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:44:08,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:44:08,048 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 75 [2023-11-29 02:44:08,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:44:08,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1962 treesize of output 1943 [2023-11-29 02:44:08,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 231 [2023-11-29 02:44:08,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 223 [2023-11-29 02:44:08,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 222 [2023-11-29 02:44:23,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-29 02:44:23,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:44:23,293 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 60 [2023-11-29 02:44:23,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:44:23,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 946 treesize of output 903 [2023-11-29 02:44:23,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 87 [2023-11-29 02:44:23,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 79 [2023-11-29 02:44:23,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 78 [2023-11-29 02:44:28,910 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse66 (select |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~head#1.base|)) (.cse67 (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~head#1.offset|))) (let ((.cse4 (select .cse66 .cse67))) (let ((.cse9 (= .cse4 |c_create_sub_list_~sub#1.base|))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_create_sub_list_insert_sub_~head#1.base| (store .cse66 .cse67 |c_create_sub_list_insert_sub_~sub~0#1.base|))) (.cse5 (bvadd (_ bv4 32) |c_create_sub_list_~sub#1.offset|)) (.cse16 (not .cse9)) (.cse6 (bvadd (_ bv8 32) |c_create_sub_list_~sub#1.offset|)) (.cse7 (= |c_create_sub_list_insert_sub_~sub~0#1.base| |c_create_sub_list_~sub#1.base|))) (let ((.cse40 (= |c_create_sub_list_insert_sub_~head#1.offset| |c_create_sub_list_~sub#1.offset|)) (.cse1 (bvadd (_ bv8 32) |c_create_sub_list_insert_sub_~sub~0#1.offset|)) (.cse32 (not .cse7)) (.cse17 (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (or (not (bvule .cse6 (select (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)) |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|)))))) (.cse39 (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse47 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse47 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse48 (select .cse47 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (forall ((v_arrayElimCell_361 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse48)) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse48) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse48) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse48))))))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse50 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse49 (select .cse50 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (forall ((v_arrayElimCell_361 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse49)) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse49) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse49)))) (not (bvule .cse6 (select .cse50 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_arrayElimCell_361 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse51 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse52 (select .cse51 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse51 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse52) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse52) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|))))) .cse9) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_arrayElimCell_361 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse53 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse54 (select .cse53 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse53 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse54) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse54) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse54) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))))))) .cse9) (or .cse7 (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse55 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse55 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse56 (select .cse55 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse56) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse56) (forall ((v_arrayElimCell_362 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse56)))))))) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse57 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse58 (select .cse57 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse57 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse58) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse58) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))))))) .cse9) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse59 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse59 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse60 (select .cse59 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse60) (forall ((v_arrayElimCell_362 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse60))))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse61 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse61 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) (select .cse61 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) .cse9))) (or .cse16 (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse62 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse63 (select .cse62 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse62 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse63) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse63) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse63)))))) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_360 (_ BitVec 32)) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse64 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse65 (select .cse64 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse64 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_360 (_ bv4 32)) .cse65) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse65) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|))))) .cse16))) (.cse46 (= |c_create_sub_list_insert_sub_~head#1.base| |c_create_sub_list_~sub#1.base|)) (.cse33 (not (bvule .cse6 (_ bv12 32)))) (.cse34 (not (= (select |c_#valid| |c_create_sub_list_~sub#1.base|) (_ bv0 1))))) (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse2 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select .cse2 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (forall ((v_arrayElimCell_361 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse0)) (bvule .cse1 .cse0) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse0)))) (not (bvule .cse6 (select .cse2 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) (or .cse7 (and (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse8 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule .cse1 (select .cse8 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) .cse9) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse10 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse11 (select .cse10 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse10 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse11) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule .cse1 .cse11))))) .cse9) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse12 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse12 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse13 (select .cse12 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (bvule .cse1 .cse13) (forall ((v_arrayElimCell_362 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse13))))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse14 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse14 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse15 (select .cse14 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse15) (bvule .cse1 .cse15) (forall ((v_arrayElimCell_362 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse15)))))))))) (or .cse16 .cse17) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse18 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse18 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse19 (select .cse18 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (forall ((v_arrayElimCell_361 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse19)) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse19) (bvule .cse1 .cse19) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse19)))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|)))))) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_361 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse20 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse21 (select .cse20 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse20 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse21) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse21) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule .cse1 .cse21))))) .cse9) (or (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse22 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse22 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse23 (select .cse22 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (forall ((v_arrayElimCell_361 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse23)) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse23) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse23)))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|)))))) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse24 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse25 (select .cse24 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse24 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse25) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse25))))) .cse16) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_361 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse26 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse27 (select .cse26 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse26 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse27) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse27) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))))))) .cse9) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse28 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse28 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse29 (select .cse28 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (forall ((v_arrayElimCell_361 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse29)) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse29)))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_361 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse30 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse30 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) (select .cse30 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) .cse9) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse31 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse31 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) (select .cse31 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) .cse16)) .cse32) (or .cse33 .cse34) (or (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_361 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse35 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse36 (select .cse35 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse35 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_361 (_ bv4 32)) .cse36) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule .cse1 .cse36) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|))))) .cse9) (or .cse17 (bvule (bvadd (_ bv4 32) |c_create_sub_list_insert_sub_~sub~0#1.offset|) .cse1)) (or .cse16 (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_363 (_ BitVec 32))) (let ((.cse37 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse38 (select .cse37 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse37 |c_create_sub_list_~sub#1.base|))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse38) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule .cse1 .cse38) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse38)))))) (or .cse39 .cse40) (or .cse40 .cse17) (or .cse16 (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32)) (v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse41 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (let ((.cse42 (select .cse41 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (not (bvule .cse6 (select .cse41 |c_create_sub_list_~sub#1.base|))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (bvule .cse1 .cse42) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse42) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))))) (or .cse16 (and (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse43 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse43 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) (select .cse43 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|))) (= |v_create_sub_list_insert_sub_~sub~0#1.base_116| |c_create_sub_list_~sub#1.base|)))) (forall ((|v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ BitVec 32))) (let ((.cse44 (store |c_#length| |v_create_sub_list_insert_sub_~sub~0#1.base_116| (_ bv12 32)))) (or (not (bvule .cse6 (select .cse44 |c_create_sub_list_~sub#1.base|))) (forall ((v_ArrVal_2773 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2792 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_362 (_ BitVec 32)) (v_ArrVal_2789 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse45 (select .cse44 (select (select (store (store (store .cse3 |c_create_sub_list_insert_sub_~sub~0#1.base| v_ArrVal_2789) .cse4 v_ArrVal_2792) |v_create_sub_list_insert_sub_~sub~0#1.base_116| v_ArrVal_2773) |c_create_sub_list_~sub#1.base|) .cse5)))) (or (bvule (bvadd v_arrayElimCell_362 (_ bv4 32)) .cse45) (forall ((v_arrayElimCell_363 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) .cse45))))) (not (= (_ bv0 1) (select |c_#valid| |v_create_sub_list_insert_sub_~sub~0#1.base_116|)))))))) (or .cse46 .cse17) (or .cse32 .cse17) (or .cse39 .cse46) (or .cse33 (forall ((v_arrayElimCell_364 (_ BitVec 32)) (v_arrayElimCell_363 (_ BitVec 32))) (bvule (bvadd v_arrayElimCell_363 (_ bv4 32)) (select (store |c_#length| |c_create_sub_list_~sub#1.base| (_ bv12 32)) v_arrayElimCell_364))) .cse34))))))) is different from true [2023-11-29 02:44:28,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1853287714] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:44:28,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:44:28,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 43 [2023-11-29 02:44:28,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84195981] [2023-11-29 02:44:28,919 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:44:28,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-11-29 02:44:28,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:44:28,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-11-29 02:44:28,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=2567, Unknown=14, NotChecked=206, Total=2970 [2023-11-29 02:44:28,921 INFO L87 Difference]: Start difference. First operand 156 states and 182 transitions. Second operand has 44 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 38 states have internal predecessors, (58), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:45:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:22,467 INFO L93 Difference]: Finished difference Result 168 states and 194 transitions. [2023-11-29 02:45:22,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 02:45:22,468 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 38 states have internal predecessors, (58), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2023-11-29 02:45:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:22,470 INFO L225 Difference]: With dead ends: 168 [2023-11-29 02:45:22,470 INFO L226 Difference]: Without dead ends: 168 [2023-11-29 02:45:22,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 68.6s TimeCoverageRelationStatistics Valid=464, Invalid=5533, Unknown=17, NotChecked=306, Total=6320 [2023-11-29 02:45:22,473 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 87 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 43 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:22,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 710 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2107 Invalid, 3 Unknown, 0 Unchecked, 30.6s Time] [2023-11-29 02:45:22,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-29 02:45:22,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2023-11-29 02:45:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 115 states have (on average 1.3565217391304347) internal successors, (156), 140 states have internal predecessors, (156), 15 states have call successors, (15), 12 states have call predecessors, (15), 13 states have return successors, (22), 14 states have call predecessors, (22), 15 states have call successors, (22) [2023-11-29 02:45:22,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 193 transitions. [2023-11-29 02:45:22,481 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 193 transitions. Word has length 43 [2023-11-29 02:45:22,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:22,481 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 193 transitions. [2023-11-29 02:45:22,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 38 states have internal predecessors, (58), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 02:45:22,481 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 193 transitions. [2023-11-29 02:45:22,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 02:45:22,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:22,482 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:22,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (33)] Ended with exit code 0 [2023-11-29 02:45:22,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-11-29 02:45:22,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 02:45:22,883 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting list_add_tailErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:45:22,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1766370215, now seen corresponding path program 1 times [2023-11-29 02:45:22,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:45:22,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649603765] [2023-11-29 02:45:22,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:22,884 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 02:45:22,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:45:22,884 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:45:22,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (35)] Waiting until timeout for monitored process [2023-11-29 02:45:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:23,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:45:23,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:45:23,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:45:23,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:45:23,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649603765] [2023-11-29 02:45:23,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649603765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:45:23,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:45:23,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:45:23,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403796007] [2023-11-29 02:45:23,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:45:23,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:45:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:45:23,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:45:23,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:45:23,769 INFO L87 Difference]: Start difference. First operand 167 states and 193 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:45:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:25,347 INFO L93 Difference]: Finished difference Result 168 states and 191 transitions. [2023-11-29 02:45:25,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:45:25,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2023-11-29 02:45:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:25,349 INFO L225 Difference]: With dead ends: 168 [2023-11-29 02:45:25,349 INFO L226 Difference]: Without dead ends: 168 [2023-11-29 02:45:25,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:45:25,350 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 38 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:25,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 332 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:45:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-29 02:45:25,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2023-11-29 02:45:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 115 states have (on average 1.3391304347826087) internal successors, (154), 139 states have internal predecessors, (154), 15 states have call successors, (15), 12 states have call predecessors, (15), 13 states have return successors, (22), 14 states have call predecessors, (22), 15 states have call successors, (22) [2023-11-29 02:45:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 191 transitions. [2023-11-29 02:45:25,357 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 191 transitions. Word has length 45 [2023-11-29 02:45:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:25,357 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 191 transitions. [2023-11-29 02:45:25,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:45:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 191 transitions. [2023-11-29 02:45:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 02:45:25,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:25,358 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:25,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (35)] Ended with exit code 0 [2023-11-29 02:45:25,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:45:25,559 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting list_add_tailErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:45:25,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:25,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1077098192, now seen corresponding path program 1 times [2023-11-29 02:45:25,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:45:25,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313714690] [2023-11-29 02:45:25,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:25,560 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 02:45:25,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:45:25,560 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:45:25,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (36)] Waiting until timeout for monitored process [2023-11-29 02:45:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:25,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:45:25,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:45:27,355 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:45:28,319 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:45:28,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2023-11-29 02:45:28,531 INFO L349 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-11-29 02:45:28,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2023-11-29 02:45:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:45:28,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:45:28,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313714690] [2023-11-29 02:45:28,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313714690] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:45:28,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:45:28,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2023-11-29 02:45:28,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437330872] [2023-11-29 02:45:28,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:45:28,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:45:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:45:28,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:45:28,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:45:28,663 INFO L87 Difference]: Start difference. First operand 166 states and 191 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:45:33,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:33,527 INFO L93 Difference]: Finished difference Result 167 states and 189 transitions. [2023-11-29 02:45:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:45:33,527 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2023-11-29 02:45:33,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:33,529 INFO L225 Difference]: With dead ends: 167 [2023-11-29 02:45:33,529 INFO L226 Difference]: Without dead ends: 167 [2023-11-29 02:45:33,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:45:33,530 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 67 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:33,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 342 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 02:45:33,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-29 02:45:33,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2023-11-29 02:45:33,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 115 states have (on average 1.3217391304347825) internal successors, (152), 138 states have internal predecessors, (152), 15 states have call successors, (15), 12 states have call predecessors, (15), 13 states have return successors, (22), 14 states have call predecessors, (22), 15 states have call successors, (22) [2023-11-29 02:45:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 189 transitions. [2023-11-29 02:45:33,538 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 189 transitions. Word has length 46 [2023-11-29 02:45:33,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:33,539 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 189 transitions. [2023-11-29 02:45:33,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 02:45:33,539 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 189 transitions. [2023-11-29 02:45:33,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 02:45:33,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:33,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:33,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (36)] Ended with exit code 0 [2023-11-29 02:45:33,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:45:33,740 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting list_add_tailErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:45:33,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:33,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1077098193, now seen corresponding path program 1 times [2023-11-29 02:45:33,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:45:33,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095227766] [2023-11-29 02:45:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:33,741 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 02:45:33,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:45:33,742 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:45:33,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (37)] Waiting until timeout for monitored process [2023-11-29 02:45:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:34,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 02:45:34,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:45:36,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:45:38,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-11-29 02:45:40,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:45:40,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2023-11-29 02:45:42,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:45:42,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2023-11-29 02:45:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:45:45,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 02:45:45,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095227766] [2023-11-29 02:45:45,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095227766] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:45:45,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:45:45,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-11-29 02:45:45,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308657524] [2023-11-29 02:45:45,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:45:45,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 02:45:45,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 02:45:45,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 02:45:45,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:45:45,222 INFO L87 Difference]: Start difference. First operand 165 states and 189 transitions. Second operand has 22 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 02:45:57,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:57,858 INFO L93 Difference]: Finished difference Result 165 states and 185 transitions. [2023-11-29 02:45:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:45:57,860 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 46 [2023-11-29 02:45:57,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:57,861 INFO L225 Difference]: With dead ends: 165 [2023-11-29 02:45:57,861 INFO L226 Difference]: Without dead ends: 165 [2023-11-29 02:45:57,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=156, Invalid=966, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:45:57,862 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 80 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:57,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 721 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-11-29 02:45:57,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-29 02:45:57,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 163. [2023-11-29 02:45:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 136 states have internal predecessors, (148), 15 states have call successors, (15), 12 states have call predecessors, (15), 13 states have return successors, (22), 14 states have call predecessors, (22), 15 states have call successors, (22) [2023-11-29 02:45:57,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 185 transitions. [2023-11-29 02:45:57,869 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 185 transitions. Word has length 46 [2023-11-29 02:45:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:57,869 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 185 transitions. [2023-11-29 02:45:57,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 18 states have internal predecessors, (58), 7 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-29 02:45:57,869 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 185 transitions. [2023-11-29 02:45:57,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 02:45:57,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:57,870 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:57,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (37)] Ended with exit code 0 [2023-11-29 02:45:58,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:45:58,070 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting list_add_tailErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_sub_listErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_sub_listErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2023-11-29 02:45:58,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:58,071 INFO L85 PathProgramCache]: Analyzing trace with hash 4245555, now seen corresponding path program 1 times [2023-11-29 02:45:58,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:45:58,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971415395] [2023-11-29 02:45:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:58,072 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 02:45:58,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:45:58,072 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 02:45:58,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9332aa2f-ec5b-4f36-843f-606c59cf4904/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 (38)] Waiting until timeout for monitored process [2023-11-29 02:45:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:58,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-29 02:45:58,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:58,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:45:58,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 18 [2023-11-29 02:45:58,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:45:59,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:45:59,180 INFO L349 Elim1Store]: treesize reduction 23, result has 32.4 percent of original size [2023-11-29 02:45:59,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 37 [2023-11-29 02:45:59,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 02:45:59,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:45:59,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:45:59,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:45:59,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2023-11-29 02:46:02,113 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2023-11-29 02:46:02,307 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-29 02:46:02,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2023-11-29 02:46:02,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-11-29 02:46:02,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-29 02:46:08,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:08,743 INFO L349 Elim1Store]: treesize reduction 124, result has 5.3 percent of original size [2023-11-29 02:46:08,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 177 treesize of output 228 [2023-11-29 02:46:08,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:09,069 INFO L224 Elim1Store]: Index analysis took 286 ms [2023-11-29 02:46:11,215 INFO L349 Elim1Store]: treesize reduction 387, result has 7.4 percent of original size [2023-11-29 02:46:11,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 155 treesize of output 360 [2023-11-29 02:46:11,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:11,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:11,806 INFO L224 Elim1Store]: Index analysis took 482 ms [2023-11-29 02:46:12,665 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:46:12,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 74 treesize of output 144 [2023-11-29 02:46:12,861 INFO L224 Elim1Store]: Index analysis took 122 ms [2023-11-29 02:46:12,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 78 [2023-11-29 02:46:13,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 800 treesize of output 616 [2023-11-29 02:46:20,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:20,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:24,058 INFO L349 Elim1Store]: treesize reduction 71, result has 20.2 percent of original size [2023-11-29 02:46:24,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1057 treesize of output 999 [2023-11-29 02:46:28,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:28,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:28,575 INFO L349 Elim1Store]: treesize reduction 76, result has 1.3 percent of original size [2023-11-29 02:46:28,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 517 treesize of output 462 [2023-11-29 02:46:30,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:30,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:35,649 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 35 DAG size of output: 13 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 02:46:35,649 INFO L349 Elim1Store]: treesize reduction 71, result has 20.2 percent of original size [2023-11-29 02:46:35,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1245 treesize of output 1171 [2023-11-29 02:46:45,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:46:45,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:46:48,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:46:48,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 02:46:54,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1063 treesize of output 831 [2023-11-29 02:46:56,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:56,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:46:59,573 INFO L349 Elim1Store]: treesize reduction 420, result has 17.8 percent of original size [2023-11-29 02:46:59,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 987 treesize of output 980 [2023-11-29 02:47:15,502 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:15,503 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:15,550 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:15,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 29 [2023-11-29 02:47:15,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:15,766 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:15,940 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:15,941 INFO L224 Elim1Store]: Index analysis took 191 ms [2023-11-29 02:47:15,979 INFO L349 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2023-11-29 02:47:15,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 50 [2023-11-29 02:47:16,511 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:16,512 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:16,551 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:16,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 24 [2023-11-29 02:47:16,754 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:16,917 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:16,917 INFO L224 Elim1Store]: Index analysis took 203 ms [2023-11-29 02:47:16,983 INFO L349 Elim1Store]: treesize reduction 209, result has 0.5 percent of original size [2023-11-29 02:47:16,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 55 [2023-11-29 02:47:18,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:18,384 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:18,556 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:18,556 INFO L224 Elim1Store]: Index analysis took 186 ms [2023-11-29 02:47:18,592 INFO L349 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2023-11-29 02:47:18,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 213 treesize of output 55 [2023-11-29 02:47:18,797 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:18,988 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:18,989 INFO L224 Elim1Store]: Index analysis took 223 ms [2023-11-29 02:47:19,054 INFO L349 Elim1Store]: treesize reduction 209, result has 0.5 percent of original size [2023-11-29 02:47:19,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 191 treesize of output 50 [2023-11-29 02:47:40,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 800 treesize of output 616 [2023-11-29 02:47:40,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:40,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:40,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,017 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:41,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,354 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:41,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:41,595 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:47:41,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 804 treesize of output 616 [2023-11-29 02:47:48,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:48,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:47:48,697 INFO L349 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-11-29 02:47:48,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 4227 treesize of output 3953 [2023-11-29 02:47:55,009 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-29 02:47:55,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 460 treesize of output 384 [2023-11-29 02:48:00,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:48:00,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:48:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:48:06,180 WARN L293 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 112 DAG size of output: 59 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 02:48:06,181 INFO L349 Elim1Store]: treesize reduction 408, result has 23.2 percent of original size [2023-11-29 02:48:06,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 980 treesize of output 998 [2023-11-29 02:48:19,080 WARN L293 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 177 DAG size of output: 80 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 02:48:19,080 INFO L349 Elim1Store]: treesize reduction 1191, result has 14.7 percent of original size [2023-11-29 02:48:19,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 23 case distinctions, treesize of input 523 treesize of output 702 [2023-11-29 02:48:33,239 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:48:33,420 INFO L224 Elim1Store]: Index analysis took 230 ms [2023-11-29 02:48:33,706 INFO L349 Elim1Store]: treesize reduction 1044, result has 0.1 percent of original size [2023-11-29 02:48:33,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 266 treesize of output 58 [2023-11-29 02:48:34,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:48:34,754 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:48:34,804 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:48:35,062 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:48:35,062 INFO L224 Elim1Store]: Index analysis took 324 ms [2023-11-29 02:48:35,300 INFO L349 Elim1Store]: treesize reduction 646, result has 0.2 percent of original size [2023-11-29 02:48:35,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 266 treesize of output 58 [2023-11-29 02:48:36,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 02:48:36,422 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:48:36,683 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 02:48:36,683 INFO L224 Elim1Store]: Index analysis took 332 ms [2023-11-29 02:48:37,131 INFO L349 Elim1Store]: treesize reduction 1400, result has 0.1 percent of original size [2023-11-29 02:48:37,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 349 treesize of output 107