./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx --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 e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:27,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:27,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:13:27,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:27,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:27,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:27,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:27,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:27,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:27,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:27,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:27,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:27,966 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:27,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:27,967 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:27,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:27,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:27,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:27,970 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:13:27,970 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:13:27,971 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:13:27,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:27,981 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:13:27,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:27,982 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:27,983 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:27,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:27,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:27,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:27,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:27,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:27,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:27,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:27,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:27,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:27,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:27,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:27,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:27,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:27,998 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_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 [2023-11-21 22:13:28,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:28,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:28,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:28,331 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:28,331 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:28,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2023-11-21 22:13:31,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:32,145 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:32,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2023-11-21 22:13:32,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data/34d4467b3/8d66818d3c1d479c84022b5b663292a8/FLAG8859efeb8 [2023-11-21 22:13:32,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data/34d4467b3/8d66818d3c1d479c84022b5b663292a8 [2023-11-21 22:13:32,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:32,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:32,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:32,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:32,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:32,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:32" (1/1) ... [2023-11-21 22:13:32,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6497459e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:32, skipping insertion in model container [2023-11-21 22:13:32,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:32" (1/1) ... [2023-11-21 22:13:32,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:33,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:33,447 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) [2023-11-21 22:13:33,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d1a8ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:33, skipping insertion in model container [2023-11-21 22:13:33,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:33,461 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:13:33,463 INFO L158 Benchmark]: Toolchain (without parser) took 1245.67ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 85.6MB in the end (delta: -7.2MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2023-11-21 22:13:33,464 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:13:33,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1240.93ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 85.6MB in the end (delta: -7.2MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2023-11-21 22:13:33,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1240.93ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 85.6MB in the end (delta: -7.2MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx --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 e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:36,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:36,258 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:13:36,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:36,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:36,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:36,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:36,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:36,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:36,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:36,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:36,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:36,307 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:36,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:36,309 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:36,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:36,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:36,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:36,312 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:13:36,312 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:13:36,313 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:13:36,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:36,315 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:13:36,315 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:13:36,316 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:13:36,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:36,317 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:36,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:36,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:36,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:36,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:36,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:36,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:36,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:36,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:36,323 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:13:36,323 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:13:36,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:36,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:36,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:36,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:36,325 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:13:36,325 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_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 [2023-11-21 22:13:36,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:36,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:36,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:36,829 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:36,829 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:36,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2023-11-21 22:13:40,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:40,839 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:40,839 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2023-11-21 22:13:40,871 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data/7f4f28fab/0694838fb2874cff86dc250c3fe51615/FLAG44d78ddaf [2023-11-21 22:13:40,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/data/7f4f28fab/0694838fb2874cff86dc250c3fe51615 [2023-11-21 22:13:40,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:40,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:40,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:40,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:40,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:40,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:40" (1/1) ... [2023-11-21 22:13:40,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20534a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:40, skipping insertion in model container [2023-11-21 22:13:40,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:40" (1/1) ... [2023-11-21 22:13:41,002 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:42,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:42,077 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:13:42,114 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:42,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:42,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:13:42,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:42,540 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:13:42,550 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:13:42,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42 WrapperNode [2023-11-21 22:13:42,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:42,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:42,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:13:42,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:13:42,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,863 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2873 [2023-11-21 22:13:42,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:42,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:13:42,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:13:42,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:13:42,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:13:43,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:13:43,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:13:43,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:13:43,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:43,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:13:43,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:13:43,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:13:43,167 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-21 22:13:43,167 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-21 22:13:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:13:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:13:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:13:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:13:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:13:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:13:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:13:43,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:13:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:13:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:13:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 22:13:43,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:13:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:13:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:13:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:13:43,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:13:43,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:13:43,493 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:13:43,496 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:13:43,546 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-21 22:13:51,076 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:13:51,619 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:13:51,620 INFO L308 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-21 22:13:51,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:51 BoogieIcfgContainer [2023-11-21 22:13:51,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:13:51,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:13:51,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:13:51,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:13:51,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:13:40" (1/3) ... [2023-11-21 22:13:51,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0e3ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:51, skipping insertion in model container [2023-11-21 22:13:51,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (2/3) ... [2023-11-21 22:13:51,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0e3ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:51, skipping insertion in model container [2023-11-21 22:13:51,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:51" (3/3) ... [2023-11-21 22:13:51,635 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-1.i [2023-11-21 22:13:51,654 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:13:51,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 430 error locations. [2023-11-21 22:13:51,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:13:51,759 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;@2119fa92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:13:51,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2023-11-21 22:13:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 1787 states, 851 states have (on average 2.207990599294947) internal successors, (1879), 1780 states have internal predecessors, (1879), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-21 22:13:51,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:13:51,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:13:51,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:13:51,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-21 22:13:51,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:51,792 INFO L85 PathProgramCache]: Analyzing trace with hash 168662, now seen corresponding path program 1 times [2023-11-21 22:13:51,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:13:51,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576151889] [2023-11-21 22:13:51,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:51,829 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 [2023-11-21 22:13:51,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:13:51,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:13:51,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:13:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:52,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:13:52,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:13:52,091 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 [2023-11-21 22:13:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:52,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:13:52,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:13:52,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576151889] [2023-11-21 22:13:52,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576151889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:52,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:52,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:13:52,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922597272] [2023-11-21 22:13:52,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:52,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:52,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:13:52,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:52,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:52,193 INFO L87 Difference]: Start difference. First operand has 1787 states, 851 states have (on average 2.207990599294947) internal successors, (1879), 1780 states have internal predecessors, (1879), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:13:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:13:55,354 INFO L93 Difference]: Finished difference Result 1775 states and 2821 transitions. [2023-11-21 22:13:55,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:13:55,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-21 22:13:55,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:13:55,397 INFO L225 Difference]: With dead ends: 1775 [2023-11-21 22:13:55,398 INFO L226 Difference]: Without dead ends: 1774 [2023-11-21 22:13:55,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:55,403 INFO L413 NwaCegarLoop]: 2414 mSDtfsCounter, 1715 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:13:55,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 2455 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-21 22:13:55,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2023-11-21 22:13:55,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1773. [2023-11-21 22:13:55,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 854 states have (on average 2.1217798594847777) internal successors, (1812), 1766 states have internal predecessors, (1812), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-21 22:13:56,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2820 transitions. [2023-11-21 22:13:56,007 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2820 transitions. Word has length 2 [2023-11-21 22:13:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:13:56,008 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 2820 transitions. [2023-11-21 22:13:56,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:13:56,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2820 transitions. [2023-11-21 22:13:56,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:13:56,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:13:56,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:13:56,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:13:56,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:13:56,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-21 22:13:56,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:56,216 INFO L85 PathProgramCache]: Analyzing trace with hash 168663, now seen corresponding path program 1 times [2023-11-21 22:13:56,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:13:56,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004757403] [2023-11-21 22:13:56,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:56,218 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 [2023-11-21 22:13:56,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:13:56,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:13:56,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:13:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:56,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:13:56,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:13:56,350 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 [2023-11-21 22:13:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:56,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:13:56,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:13:56,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004757403] [2023-11-21 22:13:56,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004757403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:56,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:56,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:13:56,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701738669] [2023-11-21 22:13:56,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:56,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:13:56,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:13:56,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:13:56,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:13:56,370 INFO L87 Difference]: Start difference. First operand 1773 states and 2820 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:14:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:01,141 INFO L93 Difference]: Finished difference Result 2960 states and 5029 transitions. [2023-11-21 22:14:01,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-21 22:14:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:01,168 INFO L225 Difference]: With dead ends: 2960 [2023-11-21 22:14:01,168 INFO L226 Difference]: Without dead ends: 2960 [2023-11-21 22:14:01,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:01,170 INFO L413 NwaCegarLoop]: 2718 mSDtfsCounter, 1208 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 4597 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:01,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1708 Valid, 4597 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-21 22:14:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2023-11-21 22:14:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2874. [2023-11-21 22:14:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 1456 states have (on average 2.073489010989011) internal successors, (3019), 2867 states have internal predecessors, (3019), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-21 22:14:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5027 transitions. [2023-11-21 22:14:01,742 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5027 transitions. Word has length 2 [2023-11-21 22:14:01,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:01,743 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5027 transitions. [2023-11-21 22:14:01,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:14:01,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5027 transitions. [2023-11-21 22:14:01,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 22:14:01,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:01,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:14:01,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:14:01,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:14:01,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-21 22:14:01,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:01,948 INFO L85 PathProgramCache]: Analyzing trace with hash 729808983, now seen corresponding path program 1 times [2023-11-21 22:14:01,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:01,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047516813] [2023-11-21 22:14:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:01,949 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 [2023-11-21 22:14:01,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:01,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:14:01,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:14:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:02,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:14:02,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:02,121 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 [2023-11-21 22:14:02,130 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 [2023-11-21 22:14:02,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:14:02,229 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 [2023-11-21 22:14:02,252 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-21 22:14:02,253 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 [2023-11-21 22:14:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:02,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:02,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:02,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047516813] [2023-11-21 22:14:02,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047516813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:02,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:02,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:02,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395283795] [2023-11-21 22:14:02,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:02,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:14:02,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:02,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:14:02,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:02,275 INFO L87 Difference]: Start difference. First operand 2874 states and 5027 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-21 22:14:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:08,202 INFO L93 Difference]: Finished difference Result 2864 states and 5016 transitions. [2023-11-21 22:14:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:14:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-21 22:14:08,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:08,226 INFO L225 Difference]: With dead ends: 2864 [2023-11-21 22:14:08,227 INFO L226 Difference]: Without dead ends: 2864 [2023-11-21 22:14:08,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:14:08,229 INFO L413 NwaCegarLoop]: 2200 mSDtfsCounter, 3483 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3986 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:08,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3986 Valid, 2221 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-21 22:14:08,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2023-11-21 22:14:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1762. [2023-11-21 22:14:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 854 states have (on average 2.107728337236534) internal successors, (1800), 1755 states have internal predecessors, (1800), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-21 22:14:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2808 transitions. [2023-11-21 22:14:08,642 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2808 transitions. Word has length 5 [2023-11-21 22:14:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:08,643 INFO L495 AbstractCegarLoop]: Abstraction has 1762 states and 2808 transitions. [2023-11-21 22:14:08,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-21 22:14:08,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2808 transitions. [2023-11-21 22:14:08,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:14:08,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:08,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:14:08,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:08,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:14:08,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-21 22:14:08,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:08,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1149241976, now seen corresponding path program 1 times [2023-11-21 22:14:08,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:08,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194545043] [2023-11-21 22:14:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:08,852 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 [2023-11-21 22:14:08,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:08,853 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:14:08,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:14:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:08,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:14:08,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:08,979 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 [2023-11-21 22:14:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:08,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:08,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:08,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194545043] [2023-11-21 22:14:08,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194545043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:08,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:08,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:08,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731721191] [2023-11-21 22:14:08,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:08,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:08,995 INFO L87 Difference]: Start difference. First operand 1762 states and 2808 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:12,334 INFO L93 Difference]: Finished difference Result 2904 states and 4972 transitions. [2023-11-21 22:14:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:12,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-21 22:14:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:12,359 INFO L225 Difference]: With dead ends: 2904 [2023-11-21 22:14:12,359 INFO L226 Difference]: Without dead ends: 2904 [2023-11-21 22:14:12,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:12,363 INFO L413 NwaCegarLoop]: 4431 mSDtfsCounter, 1719 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 6563 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:12,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 6563 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-21 22:14:12,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2023-11-21 22:14:12,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1715. [2023-11-21 22:14:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 854 states have (on average 2.0526932084309135) internal successors, (1753), 1708 states have internal predecessors, (1753), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-21 22:14:12,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2761 transitions. [2023-11-21 22:14:12,739 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2761 transitions. Word has length 6 [2023-11-21 22:14:12,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:14:12,740 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2761 transitions. [2023-11-21 22:14:12,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:12,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2761 transitions. [2023-11-21 22:14:12,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:14:12,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:12,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:14:12,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:14:12,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:14:12,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-21 22:14:12,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:12,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1149241977, now seen corresponding path program 1 times [2023-11-21 22:14:12,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:14:12,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854135196] [2023-11-21 22:14:12,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:12,958 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 [2023-11-21 22:14:12,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:14:12,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:14:12,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13e0d8bf-5bfd-4ceb-8a64-1dd9e8c92573/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:14:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:13,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:14:13,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:14:13,101 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 [2023-11-21 22:14:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:13,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:14:13,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:14:13,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854135196] [2023-11-21 22:14:13,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854135196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:13,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:13,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:13,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283979179] [2023-11-21 22:14:13,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:13,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:13,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:14:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:13,146 INFO L87 Difference]: Start difference. First operand 1715 states and 2761 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:17,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:14:17,298 INFO L93 Difference]: Finished difference Result 2964 states and 5034 transitions. [2023-11-21 22:14:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:17,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-21 22:14:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:14:17,332 INFO L225 Difference]: With dead ends: 2964 [2023-11-21 22:14:17,332 INFO L226 Difference]: Without dead ends: 2964 [2023-11-21 22:14:17,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:17,333 INFO L413 NwaCegarLoop]: 4592 mSDtfsCounter, 1440 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:14:17,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 6845 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-21 22:14:17,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states.