./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:23:00,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:23:00,358 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:23:00,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:23:00,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:23:00,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:23:00,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:23:00,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:23:00,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:23:00,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:23:00,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:23:00,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:23:00,398 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:23:00,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:23:00,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:23:00,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:23:00,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:23:00,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:23:00,401 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:23:00,402 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:23:00,402 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:23:00,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:23:00,404 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:23:00,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:23:00,405 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:23:00,405 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:23:00,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:23:00,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:23:00,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:23:00,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:00,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:23:00,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:23:00,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:23:00,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:23:00,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:23:00,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:23:00,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:23:00,409 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:23:00,409 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_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a [2023-11-06 22:23:00,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:23:00,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:23:00,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:23:00,763 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:23:00,764 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:23:00,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-11-06 22:23:04,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:23:04,668 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:23:04,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-11-06 22:23:04,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data/c6d93288b/ea74cdad34ae4c0a9fa4fbc2614f0eb3/FLAG76f7b46bf [2023-11-06 22:23:04,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data/c6d93288b/ea74cdad34ae4c0a9fa4fbc2614f0eb3 [2023-11-06 22:23:04,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:23:04,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:23:04,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:04,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:23:04,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:23:04,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:04" (1/1) ... [2023-11-06 22:23:04,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6137ebaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:04, skipping insertion in model container [2023-11-06 22:23:04,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:04" (1/1) ... [2023-11-06 22:23:04,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:05,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:05,695 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) [2023-11-06 22:23:05,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@779a3423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:05, skipping insertion in model container [2023-11-06 22:23:05,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:05,707 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:23:05,709 INFO L158 Benchmark]: Toolchain (without parser) took 990.83ms. Allocated memory is still 161.5MB. Free memory was 118.2MB in the beginning and 98.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:23:05,710 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:05,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 987.84ms. Allocated memory is still 161.5MB. Free memory was 117.9MB in the beginning and 98.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:23:05,714 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 987.84ms. Allocated memory is still 161.5MB. Free memory was 117.9MB in the beginning and 98.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:23:08,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:23:08,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 22:23:08,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:23:08,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:23:08,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:23:08,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:23:08,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:23:08,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:23:08,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:23:08,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:23:08,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:23:08,904 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:23:08,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:23:08,905 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:23:08,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:23:08,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:23:08,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:23:08,907 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:23:08,907 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:23:08,908 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:23:08,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:23:08,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:23:08,910 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:23:08,911 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:23:08,911 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:23:08,911 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:23:08,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:23:08,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:23:08,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:23:08,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:23:08,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:08,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:23:08,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:23:08,916 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:23:08,916 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:23:08,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:23:08,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:23:08,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:23:08,918 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:23:08,918 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:23:08,919 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_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58fb5e591c63ebc056bfb6417ddf45efba9827c2f78526eb3c8a68d018ffd43a [2023-11-06 22:23:09,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:23:09,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:23:09,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:23:09,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:23:09,422 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:23:09,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-11-06 22:23:12,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:23:13,168 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:23:13,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-1.i [2023-11-06 22:23:13,197 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data/d17a6163b/51ac9020b0a44c799d58cbb8471ac4cb/FLAG71aff7451 [2023-11-06 22:23:13,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/data/d17a6163b/51ac9020b0a44c799d58cbb8471ac4cb [2023-11-06 22:23:13,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:23:13,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:23:13,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:13,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:23:13,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:23:13,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:13" (1/1) ... [2023-11-06 22:23:13,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0d47de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:13, skipping insertion in model container [2023-11-06 22:23:13,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:13" (1/1) ... [2023-11-06 22:23:13,325 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:13,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:14,004 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:23:14,018 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:14,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:14,112 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:23:14,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:14,326 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:23:14,335 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:23:14,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14 WrapperNode [2023-11-06 22:23:14,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:14,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:14,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:23:14,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:23:14,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,533 INFO L138 Inliner]: procedures = 180, calls = 299, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1017 [2023-11-06 22:23:14,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:14,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:23:14,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:23:14,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:23:14,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:23:14,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:23:14,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:23:14,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:23:14,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (1/1) ... [2023-11-06 22:23:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:14,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:14,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:23:14,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:23:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:23:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:23:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:23:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:23:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:23:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:23:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:23:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:23:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-06 22:23:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-06 22:23:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:23:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:23:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:23:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:23:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 22:23:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:23:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:23:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:23:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:23:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:23:14,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:23:15,127 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:23:15,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:23:15,176 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 22:23:20,751 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:23:20,768 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:23:20,768 INFO L302 CfgBuilder]: Removed 62 assume(true) statements. [2023-11-06 22:23:20,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:20 BoogieIcfgContainer [2023-11-06 22:23:20,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:23:20,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:23:20,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:23:20,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:23:20,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:23:13" (1/3) ... [2023-11-06 22:23:20,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4328d314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:20, skipping insertion in model container [2023-11-06 22:23:20,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:14" (2/3) ... [2023-11-06 22:23:20,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4328d314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:20, skipping insertion in model container [2023-11-06 22:23:20,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:20" (3/3) ... [2023-11-06 22:23:20,781 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-1.i [2023-11-06 22:23:20,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:23:20,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 535 error locations. [2023-11-06 22:23:20,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:20,892 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;@5c2d19b5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:20,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 535 error locations. [2023-11-06 22:23:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 1108 states, 549 states have (on average 2.2185792349726774) internal successors, (1218), 1098 states have internal predecessors, (1218), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 22:23:20,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:23:20,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:20,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:23:20,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:20,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash 141073, now seen corresponding path program 1 times [2023-11-06 22:23:20,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:20,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668074636] [2023-11-06 22:23:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:20,924 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 [2023-11-06 22:23:20,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:20,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:20,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:21,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:23:21,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:21,189 INFO L351 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 [2023-11-06 22:23:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:21,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:21,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:21,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668074636] [2023-11-06 22:23:21,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668074636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:21,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:21,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:21,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184646665] [2023-11-06 22:23:21,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:21,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:21,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:21,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:21,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:21,245 INFO L87 Difference]: Start difference. First operand has 1108 states, 549 states have (on average 2.2185792349726774) internal successors, (1218), 1098 states have internal predecessors, (1218), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:23,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:23,518 INFO L93 Difference]: Finished difference Result 1113 states and 1199 transitions. [2023-11-06 22:23:23,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:23,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 22:23:23,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:23,548 INFO L225 Difference]: With dead ends: 1113 [2023-11-06 22:23:23,548 INFO L226 Difference]: Without dead ends: 1111 [2023-11-06 22:23:23,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:23,555 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 977 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:23,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 840 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 22:23:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2023-11-06 22:23:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1098. [2023-11-06 22:23:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 554 states have (on average 2.0667870036101084) internal successors, (1145), 1087 states have internal predecessors, (1145), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:23:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1189 transitions. [2023-11-06 22:23:23,688 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1189 transitions. Word has length 3 [2023-11-06 22:23:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:23,689 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1189 transitions. [2023-11-06 22:23:23,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1189 transitions. [2023-11-06 22:23:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:23:23,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:23,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:23:23,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:23,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:23,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:23,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash 141074, now seen corresponding path program 1 times [2023-11-06 22:23:23,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:23,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137415351] [2023-11-06 22:23:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:23,899 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 [2023-11-06 22:23:23,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:23,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:23,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:24,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:23:24,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:24,026 INFO L351 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 [2023-11-06 22:23:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:24,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:24,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:24,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137415351] [2023-11-06 22:23:24,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137415351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:24,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:24,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:24,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841854660] [2023-11-06 22:23:24,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:24,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:24,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:24,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:24,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:24,043 INFO L87 Difference]: Start difference. First operand 1098 states and 1189 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:27,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:27,700 INFO L93 Difference]: Finished difference Result 1495 states and 1617 transitions. [2023-11-06 22:23:27,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:27,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 22:23:27,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:27,713 INFO L225 Difference]: With dead ends: 1495 [2023-11-06 22:23:27,713 INFO L226 Difference]: Without dead ends: 1495 [2023-11-06 22:23:27,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:27,716 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 425 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:27,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1628 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-06 22:23:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2023-11-06 22:23:27,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1307. [2023-11-06 22:23:27,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 763 states have (on average 2.0563564875491482) internal successors, (1569), 1295 states have internal predecessors, (1569), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 22:23:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1615 transitions. [2023-11-06 22:23:27,790 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1615 transitions. Word has length 3 [2023-11-06 22:23:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:27,790 INFO L495 AbstractCegarLoop]: Abstraction has 1307 states and 1615 transitions. [2023-11-06 22:23:27,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1615 transitions. [2023-11-06 22:23:27,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:23:27,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:27,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:27,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:28,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:28,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:28,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:28,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1437667611, now seen corresponding path program 1 times [2023-11-06 22:23:28,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:28,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361712841] [2023-11-06 22:23:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:28,011 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 [2023-11-06 22:23:28,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:28,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:28,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:28,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:23:28,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:28,209 INFO L351 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 [2023-11-06 22:23:28,219 INFO L351 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 [2023-11-06 22:23:28,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:28,321 INFO L351 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 [2023-11-06 22:23:28,343 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:23:28,344 INFO L351 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 [2023-11-06 22:23:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:28,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:28,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:28,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361712841] [2023-11-06 22:23:28,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361712841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:28,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:28,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:28,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135956014] [2023-11-06 22:23:28,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:28,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:28,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:28,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:28,377 INFO L87 Difference]: Start difference. First operand 1307 states and 1615 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:23:31,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:31,864 INFO L93 Difference]: Finished difference Result 1314 states and 1620 transitions. [2023-11-06 22:23:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:31,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-11-06 22:23:31,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:31,875 INFO L225 Difference]: With dead ends: 1314 [2023-11-06 22:23:31,875 INFO L226 Difference]: Without dead ends: 1314 [2023-11-06 22:23:31,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:31,876 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 2042 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:31,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 534 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-06 22:23:31,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2023-11-06 22:23:31,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1087. [2023-11-06 22:23:31,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 554 states have (on average 2.045126353790614) internal successors, (1133), 1076 states have internal predecessors, (1133), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:23:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1177 transitions. [2023-11-06 22:23:31,922 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1177 transitions. Word has length 7 [2023-11-06 22:23:31,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:31,922 INFO L495 AbstractCegarLoop]: Abstraction has 1087 states and 1177 transitions. [2023-11-06 22:23:31,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:23:31,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1177 transitions. [2023-11-06 22:23:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:23:31,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:31,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:31,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:32,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:32,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:32,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:32,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023058, now seen corresponding path program 1 times [2023-11-06 22:23:32,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:32,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185685978] [2023-11-06 22:23:32,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:32,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:32,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:32,146 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:32,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:32,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:23:32,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:32,318 INFO L351 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 [2023-11-06 22:23:32,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:32,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:32,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:32,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185685978] [2023-11-06 22:23:32,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185685978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:32,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:32,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:32,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085002933] [2023-11-06 22:23:32,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:32,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:32,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:32,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:32,340 INFO L87 Difference]: Start difference. First operand 1087 states and 1177 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:35,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:35,201 INFO L93 Difference]: Finished difference Result 1418 states and 1536 transitions. [2023-11-06 22:23:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:35,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:23:35,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:35,215 INFO L225 Difference]: With dead ends: 1418 [2023-11-06 22:23:35,215 INFO L226 Difference]: Without dead ends: 1418 [2023-11-06 22:23:35,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:35,217 INFO L413 NwaCegarLoop]: 1007 mSDtfsCounter, 994 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:35,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1322 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-06 22:23:35,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2023-11-06 22:23:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1040. [2023-11-06 22:23:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 554 states have (on average 1.9584837545126355) internal successors, (1085), 1029 states have internal predecessors, (1085), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:23:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1129 transitions. [2023-11-06 22:23:35,260 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1129 transitions. Word has length 8 [2023-11-06 22:23:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:35,260 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1129 transitions. [2023-11-06 22:23:35,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:35,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1129 transitions. [2023-11-06 22:23:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:23:35,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:35,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:35,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:35,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:35,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:35,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023059, now seen corresponding path program 1 times [2023-11-06 22:23:35,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:35,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739899503] [2023-11-06 22:23:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:35,486 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 [2023-11-06 22:23:35,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:35,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:35,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:35,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:23:35,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:35,665 INFO L351 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 [2023-11-06 22:23:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:35,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:35,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:35,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739899503] [2023-11-06 22:23:35,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739899503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:35,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:35,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:23:35,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264871709] [2023-11-06 22:23:35,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:35,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:35,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:35,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:35,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:35,700 INFO L87 Difference]: Start difference. First operand 1040 states and 1129 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:39,215 INFO L93 Difference]: Finished difference Result 1516 states and 1639 transitions. [2023-11-06 22:23:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:39,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:23:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:39,226 INFO L225 Difference]: With dead ends: 1516 [2023-11-06 22:23:39,227 INFO L226 Difference]: Without dead ends: 1516 [2023-11-06 22:23:39,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:39,228 INFO L413 NwaCegarLoop]: 1225 mSDtfsCounter, 694 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:39,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1719 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-06 22:23:39,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2023-11-06 22:23:39,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1290. [2023-11-06 22:23:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 812 states have (on average 1.9544334975369457) internal successors, (1587), 1277 states have internal predecessors, (1587), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:23:39,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 1635 transitions. [2023-11-06 22:23:39,280 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 1635 transitions. Word has length 8 [2023-11-06 22:23:39,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:39,281 INFO L495 AbstractCegarLoop]: Abstraction has 1290 states and 1635 transitions. [2023-11-06 22:23:39,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:39,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 1635 transitions. [2023-11-06 22:23:39,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:23:39,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:39,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:39,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:39,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:39,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr533ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:39,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:39,494 INFO L85 PathProgramCache]: Analyzing trace with hash 958078922, now seen corresponding path program 1 times [2023-11-06 22:23:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:39,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277284609] [2023-11-06 22:23:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:39,495 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 [2023-11-06 22:23:39,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:39,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:39,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:39,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:23:39,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:39,694 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:23:39,695 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:23:39,696 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 22:23:39,715 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-06 22:23:39,785 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:23:39,785 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-06 22:23:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:39,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:39,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:39,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277284609] [2023-11-06 22:23:39,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277284609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:39,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:39,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:39,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401760457] [2023-11-06 22:23:39,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:39,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:39,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:39,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:39,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:39,806 INFO L87 Difference]: Start difference. First operand 1290 states and 1635 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-06 22:23:41,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:41,618 INFO L93 Difference]: Finished difference Result 1811 states and 2367 transitions. [2023-11-06 22:23:41,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:41,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-11-06 22:23:41,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:41,628 INFO L225 Difference]: With dead ends: 1811 [2023-11-06 22:23:41,629 INFO L226 Difference]: Without dead ends: 1811 [2023-11-06 22:23:41,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:41,630 INFO L413 NwaCegarLoop]: 1054 mSDtfsCounter, 360 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 3052 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 22:23:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2023-11-06 22:23:41,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1292. [2023-11-06 22:23:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 814 states have (on average 1.952088452088452) internal successors, (1589), 1279 states have internal predecessors, (1589), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:23:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1637 transitions. [2023-11-06 22:23:41,669 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1637 transitions. Word has length 10 [2023-11-06 22:23:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:41,670 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 1637 transitions. [2023-11-06 22:23:41,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-06 22:23:41,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1637 transitions. [2023-11-06 22:23:41,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 22:23:41,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:41,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:41,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:41,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:41,883 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:41,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:41,884 INFO L85 PathProgramCache]: Analyzing trace with hash -237495490, now seen corresponding path program 1 times [2023-11-06 22:23:41,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:41,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452937746] [2023-11-06 22:23:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:41,884 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 [2023-11-06 22:23:41,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:41,885 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:41,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:42,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:23:42,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:42,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:42,099 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:42,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:42,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452937746] [2023-11-06 22:23:42,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452937746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:42,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:42,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:42,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463566214] [2023-11-06 22:23:42,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:42,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:42,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:42,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:42,101 INFO L87 Difference]: Start difference. First operand 1292 states and 1637 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-06 22:23:42,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:42,136 INFO L93 Difference]: Finished difference Result 1250 states and 1594 transitions. [2023-11-06 22:23:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:42,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-11-06 22:23:42,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:42,144 INFO L225 Difference]: With dead ends: 1250 [2023-11-06 22:23:42,144 INFO L226 Difference]: Without dead ends: 1250 [2023-11-06 22:23:42,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:42,145 INFO L413 NwaCegarLoop]: 1048 mSDtfsCounter, 81 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:42,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2024 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:23:42,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2023-11-06 22:23:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2023-11-06 22:23:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 796 states have (on average 1.9422110552763818) internal successors, (1546), 1237 states have internal predecessors, (1546), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:23:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1594 transitions. [2023-11-06 22:23:42,180 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1594 transitions. Word has length 18 [2023-11-06 22:23:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:42,180 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1594 transitions. [2023-11-06 22:23:42,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-06 22:23:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1594 transitions. [2023-11-06 22:23:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 22:23:42,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:42,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:42,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:42,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:42,398 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:42,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash -599899528, now seen corresponding path program 1 times [2023-11-06 22:23:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:42,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100411649] [2023-11-06 22:23:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:42,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:42,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:42,401 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:42,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:42,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:23:42,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:42,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:42,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:42,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100411649] [2023-11-06 22:23:42,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100411649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:42,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:42,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:42,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561184331] [2023-11-06 22:23:42,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:42,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:42,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:42,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:42,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:42,630 INFO L87 Difference]: Start difference. First operand 1250 states and 1594 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-06 22:23:42,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:42,732 INFO L93 Difference]: Finished difference Result 1229 states and 1566 transitions. [2023-11-06 22:23:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:42,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2023-11-06 22:23:42,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:42,741 INFO L225 Difference]: With dead ends: 1229 [2023-11-06 22:23:42,741 INFO L226 Difference]: Without dead ends: 1229 [2023-11-06 22:23:42,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:42,742 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 62 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:42,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2975 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:23:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-11-06 22:23:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1228. [2023-11-06 22:23:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 788 states have (on average 1.9251269035532994) internal successors, (1517), 1215 states have internal predecessors, (1517), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:23:42,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1565 transitions. [2023-11-06 22:23:42,781 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1565 transitions. Word has length 20 [2023-11-06 22:23:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:42,782 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1565 transitions. [2023-11-06 22:23:42,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-06 22:23:42,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1565 transitions. [2023-11-06 22:23:42,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:23:42,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:42,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:42,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:42,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:42,999 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:42,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash 453907206, now seen corresponding path program 1 times [2023-11-06 22:23:43,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:43,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344400936] [2023-11-06 22:23:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:43,001 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 [2023-11-06 22:23:43,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:43,002 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:43,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:43,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:23:43,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:43,208 INFO L351 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 [2023-11-06 22:23:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:43,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:43,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:43,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344400936] [2023-11-06 22:23:43,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344400936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:43,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:43,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:43,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50348869] [2023-11-06 22:23:43,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:43,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:43,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:43,330 INFO L87 Difference]: Start difference. First operand 1228 states and 1565 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-06 22:23:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:45,760 INFO L93 Difference]: Finished difference Result 1238 states and 1577 transitions. [2023-11-06 22:23:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:45,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2023-11-06 22:23:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:45,768 INFO L225 Difference]: With dead ends: 1238 [2023-11-06 22:23:45,769 INFO L226 Difference]: Without dead ends: 1238 [2023-11-06 22:23:45,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:45,771 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 919 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:45,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 1161 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-06 22:23:45,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2023-11-06 22:23:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1224. [2023-11-06 22:23:45,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 788 states have (on average 1.9200507614213198) internal successors, (1513), 1211 states have internal predecessors, (1513), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:23:45,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1561 transitions. [2023-11-06 22:23:45,804 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1561 transitions. Word has length 34 [2023-11-06 22:23:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:45,805 INFO L495 AbstractCegarLoop]: Abstraction has 1224 states and 1561 transitions. [2023-11-06 22:23:45,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-06 22:23:45,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1561 transitions. [2023-11-06 22:23:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:23:45,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:45,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:45,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:46,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:46,019 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:46,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:46,019 INFO L85 PathProgramCache]: Analyzing trace with hash 453907207, now seen corresponding path program 1 times [2023-11-06 22:23:46,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:46,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119663825] [2023-11-06 22:23:46,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:46,020 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 [2023-11-06 22:23:46,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:46,022 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:46,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:46,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:23:46,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:46,259 INFO L351 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 [2023-11-06 22:23:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:46,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:46,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:46,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119663825] [2023-11-06 22:23:46,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119663825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:46,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:46,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:46,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437361869] [2023-11-06 22:23:46,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:46,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:46,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:46,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:46,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:46,479 INFO L87 Difference]: Start difference. First operand 1224 states and 1561 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-06 22:23:50,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:50,602 INFO L93 Difference]: Finished difference Result 1446 states and 1561 transitions. [2023-11-06 22:23:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:50,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2023-11-06 22:23:50,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:50,610 INFO L225 Difference]: With dead ends: 1446 [2023-11-06 22:23:50,610 INFO L226 Difference]: Without dead ends: 1446 [2023-11-06 22:23:50,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:50,611 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 621 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:50,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1762 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-06 22:23:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2023-11-06 22:23:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1220. [2023-11-06 22:23:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 788 states have (on average 1.9149746192893402) internal successors, (1509), 1207 states have internal predecessors, (1509), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:23:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1557 transitions. [2023-11-06 22:23:50,641 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1557 transitions. Word has length 34 [2023-11-06 22:23:50,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:50,642 INFO L495 AbstractCegarLoop]: Abstraction has 1220 states and 1557 transitions. [2023-11-06 22:23:50,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-06 22:23:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1557 transitions. [2023-11-06 22:23:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:23:50,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:50,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:50,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:50,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:50,857 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:50,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:50,857 INFO L85 PathProgramCache]: Analyzing trace with hash 233739136, now seen corresponding path program 1 times [2023-11-06 22:23:50,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:50,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587101979] [2023-11-06 22:23:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:50,858 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 [2023-11-06 22:23:50,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:50,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:50,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:51,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:23:51,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:51,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:51,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:51,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587101979] [2023-11-06 22:23:51,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587101979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:51,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:51,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:51,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263906764] [2023-11-06 22:23:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:51,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:51,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:51,190 INFO L87 Difference]: Start difference. First operand 1220 states and 1557 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2023-11-06 22:23:51,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:51,265 INFO L93 Difference]: Finished difference Result 1214 states and 1547 transitions. [2023-11-06 22:23:51,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:51,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2023-11-06 22:23:51,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:51,272 INFO L225 Difference]: With dead ends: 1214 [2023-11-06 22:23:51,272 INFO L226 Difference]: Without dead ends: 1214 [2023-11-06 22:23:51,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:51,274 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 31 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:51,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2953 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:23:51,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2023-11-06 22:23:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1214. [2023-11-06 22:23:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 782 states have (on average 1.9168797953964194) internal successors, (1499), 1201 states have internal predecessors, (1499), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-06 22:23:51,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1547 transitions. [2023-11-06 22:23:51,306 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1547 transitions. Word has length 50 [2023-11-06 22:23:51,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:51,307 INFO L495 AbstractCegarLoop]: Abstraction has 1214 states and 1547 transitions. [2023-11-06 22:23:51,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2023-11-06 22:23:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1547 transitions. [2023-11-06 22:23:51,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:23:51,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:51,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:51,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:51,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:51,532 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:51,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:51,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1122452556, now seen corresponding path program 1 times [2023-11-06 22:23:51,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218368414] [2023-11-06 22:23:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:51,534 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 [2023-11-06 22:23:51,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:51,535 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:51,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:51,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:23:51,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:52,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:52,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:52,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218368414] [2023-11-06 22:23:52,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218368414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:52,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:52,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:52,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950849582] [2023-11-06 22:23:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:52,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:23:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:52,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:23:52,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:52,207 INFO L87 Difference]: Start difference. First operand 1214 states and 1547 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-11-06 22:23:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:52,506 INFO L93 Difference]: Finished difference Result 1764 states and 2293 transitions. [2023-11-06 22:23:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:23:52,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2023-11-06 22:23:52,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:52,515 INFO L225 Difference]: With dead ends: 1764 [2023-11-06 22:23:52,515 INFO L226 Difference]: Without dead ends: 1764 [2023-11-06 22:23:52,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:23:52,516 INFO L413 NwaCegarLoop]: 1226 mSDtfsCounter, 410 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:52,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 2093 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:23:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2023-11-06 22:23:52,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1586. [2023-11-06 22:23:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1152 states have (on average 1.8993055555555556) internal successors, (2188), 1571 states have internal predecessors, (2188), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 22:23:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2240 transitions. [2023-11-06 22:23:52,551 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2240 transitions. Word has length 58 [2023-11-06 22:23:52,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:52,551 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 2240 transitions. [2023-11-06 22:23:52,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2023-11-06 22:23:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2240 transitions. [2023-11-06 22:23:52,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 22:23:52,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:52,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:52,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:52,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:52,782 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:52,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:52,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1738633470, now seen corresponding path program 1 times [2023-11-06 22:23:52,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:52,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522508000] [2023-11-06 22:23:52,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:52,784 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 [2023-11-06 22:23:52,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:52,785 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:52,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:53,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:23:53,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:53,191 INFO L351 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 [2023-11-06 22:23:53,198 INFO L351 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 [2023-11-06 22:23:53,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:53,811 INFO L351 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 [2023-11-06 22:23:53,823 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:23:53,823 INFO L351 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 [2023-11-06 22:23:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:53,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:53,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:53,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522508000] [2023-11-06 22:23:53,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522508000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:53,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:53,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:23:53,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144984758] [2023-11-06 22:23:53,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:53,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:53,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:53,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:53,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:53,837 INFO L87 Difference]: Start difference. First operand 1586 states and 2240 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-06 22:23:56,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:56,300 INFO L93 Difference]: Finished difference Result 1559 states and 2214 transitions. [2023-11-06 22:23:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:56,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-11-06 22:23:56,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:56,310 INFO L225 Difference]: With dead ends: 1559 [2023-11-06 22:23:56,310 INFO L226 Difference]: Without dead ends: 1559 [2023-11-06 22:23:56,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:56,311 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1637 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:56,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 472 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-06 22:23:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2023-11-06 22:23:56,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1126. [2023-11-06 22:23:56,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 735 states have (on average 1.7904761904761906) internal successors, (1316), 1114 states have internal predecessors, (1316), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 22:23:56,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1362 transitions. [2023-11-06 22:23:56,340 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1362 transitions. Word has length 61 [2023-11-06 22:23:56,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:56,340 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 1362 transitions. [2023-11-06 22:23:56,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-06 22:23:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1362 transitions. [2023-11-06 22:23:56,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:23:56,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:56,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:56,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:56,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:56,557 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:23:56,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:56,557 INFO L85 PathProgramCache]: Analyzing trace with hash 241058079, now seen corresponding path program 1 times [2023-11-06 22:23:56,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:56,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996341567] [2023-11-06 22:23:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:56,558 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 [2023-11-06 22:23:56,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:56,559 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:23:56,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:23:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:56,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:23:56,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:56,949 INFO L351 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 [2023-11-06 22:23:56,964 INFO L351 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 19 treesize of output 1 [2023-11-06 22:23:57,002 INFO L351 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 23 treesize of output 11 [2023-11-06 22:23:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:57,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:57,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:57,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996341567] [2023-11-06 22:23:57,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996341567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:57,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:57,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:57,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101703746] [2023-11-06 22:23:57,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:57,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:57,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:57,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:57,017 INFO L87 Difference]: Start difference. First operand 1126 states and 1362 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 22:24:00,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:00,005 INFO L93 Difference]: Finished difference Result 1125 states and 1361 transitions. [2023-11-06 22:24:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:24:00,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-06 22:24:00,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:00,010 INFO L225 Difference]: With dead ends: 1125 [2023-11-06 22:24:00,011 INFO L226 Difference]: Without dead ends: 1125 [2023-11-06 22:24:00,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:24:00,011 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 4 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:00,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2568 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-06 22:24:00,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2023-11-06 22:24:00,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2023-11-06 22:24:00,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 735 states have (on average 1.7891156462585034) internal successors, (1315), 1113 states have internal predecessors, (1315), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 22:24:00,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1361 transitions. [2023-11-06 22:24:00,034 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1361 transitions. Word has length 66 [2023-11-06 22:24:00,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:00,034 INFO L495 AbstractCegarLoop]: Abstraction has 1125 states and 1361 transitions. [2023-11-06 22:24:00,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 22:24:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1361 transitions. [2023-11-06 22:24:00,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:24:00,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:00,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:00,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:00,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:00,256 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:24:00,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:00,257 INFO L85 PathProgramCache]: Analyzing trace with hash 241058080, now seen corresponding path program 1 times [2023-11-06 22:24:00,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:00,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267167691] [2023-11-06 22:24:00,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:00,258 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 [2023-11-06 22:24:00,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:00,259 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:24:00,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 22:24:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:00,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:24:00,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:00,650 INFO L351 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 [2023-11-06 22:24:00,671 INFO L351 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 19 treesize of output 1 [2023-11-06 22:24:00,677 INFO L351 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 [2023-11-06 22:24:00,737 INFO L351 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 21 treesize of output 9 [2023-11-06 22:24:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:00,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:00,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:00,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267167691] [2023-11-06 22:24:00,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267167691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:00,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:00,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:24:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445564515] [2023-11-06 22:24:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:00,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:24:00,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:00,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:24:00,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:24:00,762 INFO L87 Difference]: Start difference. First operand 1125 states and 1361 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 22:24:04,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:04,749 INFO L93 Difference]: Finished difference Result 1124 states and 1360 transitions. [2023-11-06 22:24:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:24:04,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-06 22:24:04,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:04,755 INFO L225 Difference]: With dead ends: 1124 [2023-11-06 22:24:04,755 INFO L226 Difference]: Without dead ends: 1124 [2023-11-06 22:24:04,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:24:04,756 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 2 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:04,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2613 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-06 22:24:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2023-11-06 22:24:04,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1124. [2023-11-06 22:24:04,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 734 states have (on average 1.7901907356948228) internal successors, (1314), 1112 states have internal predecessors, (1314), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 22:24:04,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1360 transitions. [2023-11-06 22:24:04,778 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1360 transitions. Word has length 66 [2023-11-06 22:24:04,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:04,778 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1360 transitions. [2023-11-06 22:24:04,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 22:24:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1360 transitions. [2023-11-06 22:24:04,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:24:04,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:04,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:04,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:04,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:04,993 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:24:04,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:04,994 INFO L85 PathProgramCache]: Analyzing trace with hash 792233574, now seen corresponding path program 1 times [2023-11-06 22:24:04,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:04,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326711046] [2023-11-06 22:24:04,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:04,995 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 [2023-11-06 22:24:04,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:04,998 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:24:05,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:24:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:05,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:24:05,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:05,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:05,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:05,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326711046] [2023-11-06 22:24:05,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326711046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:05,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:05,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:24:05,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293853344] [2023-11-06 22:24:05,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:05,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:24:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:24:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:24:05,401 INFO L87 Difference]: Start difference. First operand 1124 states and 1360 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:24:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:05,459 INFO L93 Difference]: Finished difference Result 1127 states and 1364 transitions. [2023-11-06 22:24:05,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:24:05,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2023-11-06 22:24:05,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:05,470 INFO L225 Difference]: With dead ends: 1127 [2023-11-06 22:24:05,470 INFO L226 Difference]: Without dead ends: 1127 [2023-11-06 22:24:05,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:24:05,471 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 2 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:05,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2899 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:24:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-06 22:24:05,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2023-11-06 22:24:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 736 states have (on average 1.7894021739130435) internal successors, (1317), 1115 states have internal predecessors, (1317), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 22:24:05,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1364 transitions. [2023-11-06 22:24:05,505 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1364 transitions. Word has length 74 [2023-11-06 22:24:05,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:05,506 INFO L495 AbstractCegarLoop]: Abstraction has 1127 states and 1364 transitions. [2023-11-06 22:24:05,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:24:05,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1364 transitions. [2023-11-06 22:24:05,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:24:05,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:05,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:05,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:05,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:05,723 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:24:05,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:05,723 INFO L85 PathProgramCache]: Analyzing trace with hash -316685862, now seen corresponding path program 1 times [2023-11-06 22:24:05,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:05,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631654152] [2023-11-06 22:24:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:05,724 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 [2023-11-06 22:24:05,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:05,725 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:24:05,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-06 22:24:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:06,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:24:06,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:06,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:06,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:06,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631654152] [2023-11-06 22:24:06,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631654152] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:24:06,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:24:06,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:24:06,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186363165] [2023-11-06 22:24:06,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:06,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:24:06,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:06,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:24:06,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:24:06,238 INFO L87 Difference]: Start difference. First operand 1127 states and 1364 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:06,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:06,418 INFO L93 Difference]: Finished difference Result 1139 states and 1381 transitions. [2023-11-06 22:24:06,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:24:06,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2023-11-06 22:24:06,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:06,425 INFO L225 Difference]: With dead ends: 1139 [2023-11-06 22:24:06,425 INFO L226 Difference]: Without dead ends: 1139 [2023-11-06 22:24:06,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:24:06,426 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 12 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:06,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3866 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:24:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-11-06 22:24:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1137. [2023-11-06 22:24:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 745 states have (on average 1.7879194630872484) internal successors, (1332), 1124 states have internal predecessors, (1332), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 22:24:06,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1379 transitions. [2023-11-06 22:24:06,451 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1379 transitions. Word has length 75 [2023-11-06 22:24:06,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:06,452 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1379 transitions. [2023-11-06 22:24:06,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1379 transitions. [2023-11-06 22:24:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:24:06,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:06,453 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:06,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-06 22:24:06,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:06,668 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:24:06,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 216384358, now seen corresponding path program 2 times [2023-11-06 22:24:06,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:06,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416451478] [2023-11-06 22:24:06,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:24:06,669 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 [2023-11-06 22:24:06,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:06,670 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:24:06,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:24:07,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:24:07,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:07,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:24:07,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:07,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:07,455 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:07,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:07,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416451478] [2023-11-06 22:24:07,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416451478] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:24:07,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:24:07,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-06 22:24:07,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661052186] [2023-11-06 22:24:07,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:07,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:24:07,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:07,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:24:07,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:24:07,458 INFO L87 Difference]: Start difference. First operand 1137 states and 1379 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:08,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:08,123 INFO L93 Difference]: Finished difference Result 1158 states and 1407 transitions. [2023-11-06 22:24:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 22:24:08,124 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2023-11-06 22:24:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:08,130 INFO L225 Difference]: With dead ends: 1158 [2023-11-06 22:24:08,131 INFO L226 Difference]: Without dead ends: 1154 [2023-11-06 22:24:08,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-06 22:24:08,132 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 19 mSDsluCounter, 5806 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6778 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:08,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6778 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:24:08,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2023-11-06 22:24:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1146. [2023-11-06 22:24:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 754 states have (on average 1.7824933687002653) internal successors, (1344), 1133 states have internal predecessors, (1344), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 22:24:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1391 transitions. [2023-11-06 22:24:08,157 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1391 transitions. Word has length 78 [2023-11-06 22:24:08,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:08,158 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1391 transitions. [2023-11-06 22:24:08,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1391 transitions. [2023-11-06 22:24:08,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-06 22:24:08,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:08,159 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:08,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:24:08,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:08,375 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:24:08,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:08,375 INFO L85 PathProgramCache]: Analyzing trace with hash 394096358, now seen corresponding path program 3 times [2023-11-06 22:24:08,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:08,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752971267] [2023-11-06 22:24:08,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:24:08,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:08,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:08,377 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:24:08,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-06 22:24:09,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:24:09,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:09,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:24:09,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:09,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:10,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:10,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752971267] [2023-11-06 22:24:10,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752971267] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:24:10,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:24:10,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-06 22:24:10,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349581199] [2023-11-06 22:24:10,256 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:10,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 22:24:10,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:10,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 22:24:10,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-06 22:24:10,258 INFO L87 Difference]: Start difference. First operand 1146 states and 1391 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:13,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:13,227 INFO L93 Difference]: Finished difference Result 1188 states and 1453 transitions. [2023-11-06 22:24:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-06 22:24:13,229 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2023-11-06 22:24:13,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:13,235 INFO L225 Difference]: With dead ends: 1188 [2023-11-06 22:24:13,235 INFO L226 Difference]: Without dead ends: 1182 [2023-11-06 22:24:13,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2023-11-06 22:24:13,237 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 46 mSDsluCounter, 14549 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 15526 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:13,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 15526 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-06 22:24:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2023-11-06 22:24:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1164. [2023-11-06 22:24:13,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 772 states have (on average 1.7707253886010363) internal successors, (1367), 1151 states have internal predecessors, (1367), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 22:24:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1414 transitions. [2023-11-06 22:24:13,264 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1414 transitions. Word has length 84 [2023-11-06 22:24:13,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:13,265 INFO L495 AbstractCegarLoop]: Abstraction has 1164 states and 1414 transitions. [2023-11-06 22:24:13,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1414 transitions. [2023-11-06 22:24:13,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 22:24:13,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:13,266 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:13,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:13,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:13,482 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:24:13,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:13,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2021189094, now seen corresponding path program 4 times [2023-11-06 22:24:13,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:13,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137664899] [2023-11-06 22:24:13,483 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:24:13,483 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 [2023-11-06 22:24:13,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:13,484 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:24:13,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:24:14,010 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:24:14,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:14,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:24:14,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:14,574 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:14,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:16,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:16,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137664899] [2023-11-06 22:24:16,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137664899] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:24:16,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:24:16,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-06 22:24:16,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261946983] [2023-11-06 22:24:16,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:16,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-06 22:24:16,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:16,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-06 22:24:16,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 22:24:16,914 INFO L87 Difference]: Start difference. First operand 1164 states and 1414 transitions. Second operand has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:27,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:27,862 INFO L93 Difference]: Finished difference Result 1244 states and 1526 transitions. [2023-11-06 22:24:27,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-11-06 22:24:27,863 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-06 22:24:27,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:27,869 INFO L225 Difference]: With dead ends: 1244 [2023-11-06 22:24:27,870 INFO L226 Difference]: Without dead ends: 1240 [2023-11-06 22:24:27,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2023-11-06 22:24:27,877 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 83 mSDsluCounter, 23623 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 24612 SdHoareTripleChecker+Invalid, 2530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:27,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 24612 Invalid, 2530 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-06 22:24:27,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2023-11-06 22:24:27,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1198. [2023-11-06 22:24:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 806 states have (on average 1.7531017369727047) internal successors, (1413), 1185 states have internal predecessors, (1413), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 22:24:27,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1460 transitions. [2023-11-06 22:24:27,906 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1460 transitions. Word has length 96 [2023-11-06 22:24:27,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:27,906 INFO L495 AbstractCegarLoop]: Abstraction has 1198 states and 1460 transitions. [2023-11-06 22:24:27,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:24:27,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1460 transitions. [2023-11-06 22:24:27,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-06 22:24:27,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:27,908 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:27,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:24:28,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:24:28,121 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:24:28,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash -765155994, now seen corresponding path program 5 times [2023-11-06 22:24:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566680673] [2023-11-06 22:24:28,123 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:24:28,123 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 [2023-11-06 22:24:28,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:28,124 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:24:28,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:24:29,568 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 22:24:29,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:24:29,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-06 22:24:29,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:29,622 INFO L351 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 [2023-11-06 22:24:29,798 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:24:29,798 INFO L351 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 [2023-11-06 22:24:29,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1 [2023-11-06 22:24:29,978 INFO L351 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 [2023-11-06 22:24:31,199 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:24:31,199 INFO L351 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 22:24:31,247 INFO L351 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 33 treesize of output 15 [2023-11-06 22:24:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 22:24:31,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:33,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:33,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566680673] [2023-11-06 22:24:33,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566680673] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:33,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2024372321] [2023-11-06 22:24:33,869 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:24:33,869 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:24:33,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:24:33,872 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:24:33,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-06 22:25:47,493 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 22:25:47,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:25:47,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-06 22:25:47,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:47,776 INFO L351 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 [2023-11-06 22:25:47,999 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:25:48,000 INFO L351 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 [2023-11-06 22:25:48,037 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1 [2023-11-06 22:25:48,132 INFO L351 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 [2023-11-06 22:25:49,378 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:25:49,378 INFO L351 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 22:25:49,423 INFO L351 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 33 treesize of output 15 [2023-11-06 22:25:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 22:25:49,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:52,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2024372321] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:52,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:25:52,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-06 22:25:52,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867223474] [2023-11-06 22:25:52,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:52,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:25:52,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:25:52,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:25:52,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2023-11-06 22:25:52,009 INFO L87 Difference]: Start difference. First operand 1198 states and 1460 transitions. Second operand has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:26:02,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:26:02,823 INFO L93 Difference]: Finished difference Result 1209 states and 1469 transitions. [2023-11-06 22:26:02,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:26:02,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2023-11-06 22:26:02,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:26:02,829 INFO L225 Difference]: With dead ends: 1209 [2023-11-06 22:26:02,829 INFO L226 Difference]: Without dead ends: 1205 [2023-11-06 22:26:02,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=49, Invalid=160, Unknown=1, NotChecked=0, Total=210 [2023-11-06 22:26:02,831 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 802 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 3213 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 3412 SdHoareTripleChecker+Invalid, 3220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 3213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:26:02,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 3412 Invalid, 3220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 3213 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-11-06 22:26:02,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2023-11-06 22:26:02,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1197. [2023-11-06 22:26:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 806 states have (on average 1.7468982630272953) internal successors, (1408), 1184 states have internal predecessors, (1408), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2023-11-06 22:26:02,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1455 transitions. [2023-11-06 22:26:02,860 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1455 transitions. Word has length 118 [2023-11-06 22:26:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:26:02,861 INFO L495 AbstractCegarLoop]: Abstraction has 1197 states and 1455 transitions. [2023-11-06 22:26:02,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:26:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1455 transitions. [2023-11-06 22:26:02,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-06 22:26:02,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:26:02,863 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:26:02,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-06 22:26:03,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:26:03,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:26:03,285 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 22:26:03,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash -765155993, now seen corresponding path program 1 times [2023-11-06 22:26:03,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:26:03,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174608705] [2023-11-06 22:26:03,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:03,286 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 [2023-11-06 22:26:03,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:26:03,287 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 22:26:03,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 22:26:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:04,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-06 22:26:04,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:26:04,234 INFO L351 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 [2023-11-06 22:26:04,449 INFO L351 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 [2023-11-06 22:26:04,470 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:26:04,470 INFO L351 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 [2023-11-06 22:26:04,512 INFO L351 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 [2023-11-06 22:26:04,536 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 1 [2023-11-06 22:26:04,700 INFO L351 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 22 treesize of output 10 [2023-11-06 22:26:04,708 INFO L351 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 9 treesize of output 3 [2023-11-06 22:26:05,794 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:26:05,795 INFO L351 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-06 22:26:05,813 INFO L351 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 30 treesize of output 13 [2023-11-06 22:26:05,880 INFO L351 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 31 treesize of output 13 [2023-11-06 22:26:05,888 INFO L351 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 9 treesize of output 3 [2023-11-06 22:26:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 22:26:05,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:26:07,913 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3012 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3012) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_ArrVal_3013 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3012 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3012) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3013) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-06 22:26:07,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:26:07,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174608705] [2023-11-06 22:26:07,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174608705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:26:07,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1047748929] [2023-11-06 22:26:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:07,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:26:07,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:26:07,926 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:26:07,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fdd8d5-9664-4046-8736-b1e9add61fda/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process