./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:36:36,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:36:36,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 04:36:36,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:36:36,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:36:36,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:36:36,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:36:36,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:36:36,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:36:36,751 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:36:36,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:36:36,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:36:36,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:36:36,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:36:36,753 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:36:36,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:36:36,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:36:36,755 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:36:36,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:36:36,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:36:36,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:36:36,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:36:36,761 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:36:36,761 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:36:36,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:36:36,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:36:36,762 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:36:36,763 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:36:36,763 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:36:36,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:36:36,764 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:36:36,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:36:36,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:36:36,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:36:36,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:36:36,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:36:36,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:36:36,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:36:36,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:36:36,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:36:36,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:36:36,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:36:36,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:36:36,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:36:36,767 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_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2023-11-29 04:36:36,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:36:37,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:36:37,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:36:37,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:36:37,013 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:36:37,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2023-11-29 04:36:39,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:36:40,077 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:36:40,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2023-11-29 04:36:40,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data/3d8d99682/4a17b8720d0f4a24abeb11c58ad5aafc/FLAGa90e8d5cb [2023-11-29 04:36:40,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data/3d8d99682/4a17b8720d0f4a24abeb11c58ad5aafc [2023-11-29 04:36:40,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:36:40,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:36:40,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:36:40,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:36:40,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:36:40,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:36:40" (1/1) ... [2023-11-29 04:36:40,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e924412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:40, skipping insertion in model container [2023-11-29 04:36:40,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:36:40" (1/1) ... [2023-11-29 04:36:40,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:36:40,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:36:40,942 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 04:36:40,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7cf3be17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:40, skipping insertion in model container [2023-11-29 04:36:40,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:36:40,943 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 04:36:40,944 INFO L158 Benchmark]: Toolchain (without parser) took 825.66ms. Allocated memory is still 134.2MB. Free memory was 92.5MB in the beginning and 69.8MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 04:36:40,945 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:36:40,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 823.16ms. Allocated memory is still 134.2MB. Free memory was 92.2MB in the beginning and 69.8MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 04:36:40,947 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 823.16ms. Allocated memory is still 134.2MB. Free memory was 92.2MB in the beginning and 69.8MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:36:42,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:36:42,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 04:36:42,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:36:42,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:36:42,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:36:42,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:36:42,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:36:42,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:36:42,874 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:36:42,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:36:42,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:36:42,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:36:42,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:36:42,877 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:36:42,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:36:42,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:36:42,878 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:36:42,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:36:42,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:36:42,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:36:42,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:36:42,882 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:36:42,882 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:36:42,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:36:42,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:36:42,883 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:36:42,884 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:36:42,884 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:36:42,885 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:36:42,885 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:36:42,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:36:42,886 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:36:42,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:36:42,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:36:42,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:36:42,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:36:42,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:36:42,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:36:42,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:36:42,888 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:36:42,888 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:36:42,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:36:42,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:36:42,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:36:42,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:36:42,889 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:36:42,889 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_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2023-11-29 04:36:43,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:36:43,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:36:43,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:36:43,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:36:43,206 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:36:43,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2023-11-29 04:36:46,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:36:46,335 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:36:46,336 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2023-11-29 04:36:46,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data/7fecf7fd4/7a5469d1b57842b68b7c4159ae24c8a7/FLAG29c4df3d4 [2023-11-29 04:36:46,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/data/7fecf7fd4/7a5469d1b57842b68b7c4159ae24c8a7 [2023-11-29 04:36:46,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:36:46,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:36:46,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:36:46,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:36:46,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:36:46,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:36:46" (1/1) ... [2023-11-29 04:36:46,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4906cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:46, skipping insertion in model container [2023-11-29 04:36:46,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:36:46" (1/1) ... [2023-11-29 04:36:46,454 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:36:47,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:36:47,253 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 04:36:47,272 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:36:47,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:36:47,389 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:36:47,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:36:47,551 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:36:47,558 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:36:47,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47 WrapperNode [2023-11-29 04:36:47,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:36:47,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:36:47,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:36:47,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:36:47,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,675 INFO L138 Inliner]: procedures = 285, calls = 351, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1207 [2023-11-29 04:36:47,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:36:47,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:36:47,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:36:47,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:36:47,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,803 INFO L175 MemorySlicer]: Split 314 memory accesses to 5 slices as follows [2, 3, 270, 5, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 64 writes are split as follows [0, 2, 57, 1, 4]. [2023-11-29 04:36:47,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:36:47,912 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:36:47,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:36:47,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:36:47,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (1/1) ... [2023-11-29 04:36:47,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:36:47,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:36:47,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:36:47,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:36:47,990 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 04:36:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 04:36:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 04:36:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 04:36:47,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 04:36:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 04:36:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-29 04:36:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 04:36:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 04:36:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 04:36:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 04:36:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 04:36:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:36:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 04:36:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:36:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:36:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:36:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:36:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 04:36:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:36:47,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 04:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 04:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 04:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 04:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 04:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 04:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 04:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 04:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 04:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-29 04:36:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-29 04:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:36:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:36:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:36:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-29 04:36:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-29 04:36:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:36:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:36:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:36:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:36:47,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 04:36:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-29 04:36:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-29 04:36:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:36:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:36:48,242 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:36:48,245 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:36:54,478 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:36:54,524 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:36:54,525 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-29 04:36:54,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:36:54 BoogieIcfgContainer [2023-11-29 04:36:54,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:36:54,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:36:54,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:36:54,531 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:36:54,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:36:46" (1/3) ... [2023-11-29 04:36:54,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3323ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:36:54, skipping insertion in model container [2023-11-29 04:36:54,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:36:47" (2/3) ... [2023-11-29 04:36:54,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3323ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:36:54, skipping insertion in model container [2023-11-29 04:36:54,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:36:54" (3/3) ... [2023-11-29 04:36:54,534 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2023-11-29 04:36:54,554 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:36:54,554 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:36:54,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:36:54,610 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;@26a72286, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:36:54,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:36:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 232 states have (on average 1.6336206896551724) internal successors, (379), 237 states have internal predecessors, (379), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:36:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 04:36:54,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:54,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:54,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:36:54,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:54,632 INFO L85 PathProgramCache]: Analyzing trace with hash -711634754, now seen corresponding path program 1 times [2023-11-29 04:36:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:36:54,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279291120] [2023-11-29 04:36:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:54,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:36:54,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:36:54,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:36:54,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 04:36:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:54,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:36:54,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:36:54,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:36:54,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:36:54,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:36:54,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279291120] [2023-11-29 04:36:54,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279291120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:54,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:54,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:36:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963704389] [2023-11-29 04:36:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:54,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:36:54,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:36:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:36:54,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:36:54,943 INFO L87 Difference]: Start difference. First operand has 259 states, 232 states have (on average 1.6336206896551724) internal successors, (379), 237 states have internal predecessors, (379), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:36:55,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:36:55,030 INFO L93 Difference]: Finished difference Result 254 states and 332 transitions. [2023-11-29 04:36:55,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:36:55,033 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 04:36:55,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:36:55,046 INFO L225 Difference]: With dead ends: 254 [2023-11-29 04:36:55,046 INFO L226 Difference]: Without dead ends: 253 [2023-11-29 04:36:55,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:36:55,052 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:36:55,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:36:55,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-29 04:36:55,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2023-11-29 04:36:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 228 states have (on average 1.3026315789473684) internal successors, (297), 233 states have internal predecessors, (297), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 04:36:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 331 transitions. [2023-11-29 04:36:55,114 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 331 transitions. Word has length 9 [2023-11-29 04:36:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:36:55,114 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 331 transitions. [2023-11-29 04:36:55,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:36:55,115 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 331 transitions. [2023-11-29 04:36:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 04:36:55,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:36:55,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:36:55,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:36:55,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:36:55,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:36:55,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:36:55,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1093340257, now seen corresponding path program 1 times [2023-11-29 04:36:55,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:36:55,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595341508] [2023-11-29 04:36:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:36:55,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:36:55,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:36:55,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:36:55,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 04:36:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:36:55,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:36:55,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:36:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:36:55,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:36:55,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:36:55,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595341508] [2023-11-29 04:36:55,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595341508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:36:55,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:36:55,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:36:55,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472769085] [2023-11-29 04:36:55,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:36:55,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:36:55,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:36:55,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:36:55,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:36:55,665 INFO L87 Difference]: Start difference. First operand 253 states and 331 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:36:59,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:37:02,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:37:02,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:02,627 INFO L93 Difference]: Finished difference Result 410 states and 539 transitions. [2023-11-29 04:37:02,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:37:02,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-29 04:37:02,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:02,631 INFO L225 Difference]: With dead ends: 410 [2023-11-29 04:37:02,631 INFO L226 Difference]: Without dead ends: 410 [2023-11-29 04:37:02,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:37:02,633 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 199 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:02,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 910 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-29 04:37:02,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-29 04:37:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 370. [2023-11-29 04:37:02,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.304093567251462) internal successors, (446), 347 states have internal predecessors, (446), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:37:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 486 transitions. [2023-11-29 04:37:02,668 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 486 transitions. Word has length 11 [2023-11-29 04:37:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:02,668 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 486 transitions. [2023-11-29 04:37:02,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:37:02,668 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 486 transitions. [2023-11-29 04:37:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 04:37:02,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:02,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:02,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 04:37:02,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:02,870 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:02,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:02,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2126280651, now seen corresponding path program 1 times [2023-11-29 04:37:02,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:02,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642309497] [2023-11-29 04:37:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:02,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:02,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:02,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:02,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 04:37:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:03,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:37:03,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:03,095 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:37:03,096 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:37:03,096 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:37:03,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 04:37:03,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:37:03,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 04:37:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:03,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:37:03,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:03,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642309497] [2023-11-29 04:37:03,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642309497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:37:03,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:37:03,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:37:03,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620285991] [2023-11-29 04:37:03,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:37:03,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:37:03,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:03,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:37:03,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:37:03,217 INFO L87 Difference]: Start difference. First operand 370 states and 486 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:37:03,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:03,955 INFO L93 Difference]: Finished difference Result 581 states and 770 transitions. [2023-11-29 04:37:03,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:37:03,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-29 04:37:03,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:03,960 INFO L225 Difference]: With dead ends: 581 [2023-11-29 04:37:03,960 INFO L226 Difference]: Without dead ends: 581 [2023-11-29 04:37:03,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:37:03,962 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 270 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:03,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 1072 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:37:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-11-29 04:37:03,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 369. [2023-11-29 04:37:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 341 states have (on average 1.3020527859237536) internal successors, (444), 346 states have internal predecessors, (444), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:37:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 484 transitions. [2023-11-29 04:37:03,983 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 484 transitions. Word has length 14 [2023-11-29 04:37:03,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:03,983 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 484 transitions. [2023-11-29 04:37:03,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:37:03,984 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 484 transitions. [2023-11-29 04:37:03,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 04:37:03,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:03,985 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] [2023-11-29 04:37:03,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 04:37:04,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:04,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:04,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:04,186 INFO L85 PathProgramCache]: Analyzing trace with hash -130810140, now seen corresponding path program 1 times [2023-11-29 04:37:04,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:04,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424724774] [2023-11-29 04:37:04,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:04,187 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:04,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:04,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:04,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 04:37:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:04,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:37:04,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:04,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:37:04,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:04,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424724774] [2023-11-29 04:37:04,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424724774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:37:04,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:37:04,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:37:04,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100858619] [2023-11-29 04:37:04,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:37:04,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:37:04,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:04,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:37:04,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:37:04,516 INFO L87 Difference]: Start difference. First operand 369 states and 484 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:37:04,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:04,693 INFO L93 Difference]: Finished difference Result 377 states and 476 transitions. [2023-11-29 04:37:04,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:37:04,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-11-29 04:37:04,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:04,697 INFO L225 Difference]: With dead ends: 377 [2023-11-29 04:37:04,697 INFO L226 Difference]: Without dead ends: 377 [2023-11-29 04:37:04,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:37:04,698 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 36 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:04,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 858 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:37:04,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-29 04:37:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 375. [2023-11-29 04:37:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 347 states have (on average 1.2507204610951008) internal successors, (434), 352 states have internal predecessors, (434), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 04:37:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 474 transitions. [2023-11-29 04:37:04,714 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 474 transitions. Word has length 48 [2023-11-29 04:37:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:04,715 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 474 transitions. [2023-11-29 04:37:04,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:37:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 474 transitions. [2023-11-29 04:37:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 04:37:04,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:04,717 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] [2023-11-29 04:37:04,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 04:37:04,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:04,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:04,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:04,924 INFO L85 PathProgramCache]: Analyzing trace with hash 323773912, now seen corresponding path program 1 times [2023-11-29 04:37:04,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:04,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229785607] [2023-11-29 04:37:04,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:04,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:04,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:04,927 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:04,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 04:37:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:05,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:37:05,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:05,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:37:05,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:05,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229785607] [2023-11-29 04:37:05,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229785607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:37:05,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:37:05,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:37:05,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514126849] [2023-11-29 04:37:05,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:37:05,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:37:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:05,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:37:05,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:37:05,262 INFO L87 Difference]: Start difference. First operand 375 states and 474 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:37:05,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:05,510 INFO L93 Difference]: Finished difference Result 384 states and 483 transitions. [2023-11-29 04:37:05,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:37:05,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-11-29 04:37:05,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:05,515 INFO L225 Difference]: With dead ends: 384 [2023-11-29 04:37:05,515 INFO L226 Difference]: Without dead ends: 384 [2023-11-29 04:37:05,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:37:05,516 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 11 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:05,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1530 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:37:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-29 04:37:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2023-11-29 04:37:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 353 states have (on average 1.2492917847025495) internal successors, (441), 359 states have internal predecessors, (441), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 04:37:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 483 transitions. [2023-11-29 04:37:05,533 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 483 transitions. Word has length 48 [2023-11-29 04:37:05,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:05,534 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 483 transitions. [2023-11-29 04:37:05,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:37:05,534 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 483 transitions. [2023-11-29 04:37:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 04:37:05,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:05,537 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:05,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 04:37:05,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:05,741 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:05,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -441157344, now seen corresponding path program 1 times [2023-11-29 04:37:05,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:05,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272072963] [2023-11-29 04:37:05,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:05,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:05,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:05,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:05,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 04:37:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:06,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:37:06,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:06,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:37:06,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:06,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272072963] [2023-11-29 04:37:06,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272072963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:37:06,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:37:06,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:37:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522256528] [2023-11-29 04:37:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:37:06,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:37:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:37:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:37:06,383 INFO L87 Difference]: Start difference. First operand 384 states and 483 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:37:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:06,778 INFO L93 Difference]: Finished difference Result 390 states and 491 transitions. [2023-11-29 04:37:06,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:37:06,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2023-11-29 04:37:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:06,783 INFO L225 Difference]: With dead ends: 390 [2023-11-29 04:37:06,783 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 04:37:06,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:37:06,784 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 17 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:06,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1397 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:37:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 04:37:06,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2023-11-29 04:37:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 354 states have (on average 1.2485875706214689) internal successors, (442), 361 states have internal predecessors, (442), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2023-11-29 04:37:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 487 transitions. [2023-11-29 04:37:06,801 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 487 transitions. Word has length 60 [2023-11-29 04:37:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:06,802 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 487 transitions. [2023-11-29 04:37:06,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:37:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 487 transitions. [2023-11-29 04:37:06,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 04:37:06,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:06,804 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:06,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 04:37:07,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:07,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:07,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:07,012 INFO L85 PathProgramCache]: Analyzing trace with hash 468705426, now seen corresponding path program 1 times [2023-11-29 04:37:07,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:07,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368934980] [2023-11-29 04:37:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:07,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:07,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:07,014 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:07,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 04:37:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:07,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:37:07,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:07,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:37:07,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:07,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368934980] [2023-11-29 04:37:07,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368934980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:37:07,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:37:07,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:37:07,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571016119] [2023-11-29 04:37:07,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:37:07,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:37:07,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:07,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:37:07,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:37:07,457 INFO L87 Difference]: Start difference. First operand 387 states and 487 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:37:07,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:07,561 INFO L93 Difference]: Finished difference Result 389 states and 490 transitions. [2023-11-29 04:37:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:37:07,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 65 [2023-11-29 04:37:07,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:07,565 INFO L225 Difference]: With dead ends: 389 [2023-11-29 04:37:07,565 INFO L226 Difference]: Without dead ends: 389 [2023-11-29 04:37:07,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:37:07,566 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 0 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:07,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 922 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:37:07,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-11-29 04:37:07,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2023-11-29 04:37:07,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 355 states have (on average 1.2507042253521128) internal successors, (444), 363 states have internal predecessors, (444), 24 states have call successors, (24), 7 states have call predecessors, (24), 8 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2023-11-29 04:37:07,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 490 transitions. [2023-11-29 04:37:07,577 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 490 transitions. Word has length 65 [2023-11-29 04:37:07,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:07,578 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 490 transitions. [2023-11-29 04:37:07,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:37:07,578 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 490 transitions. [2023-11-29 04:37:07,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 04:37:07,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:07,580 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:07,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 04:37:07,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:07,785 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:07,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:07,785 INFO L85 PathProgramCache]: Analyzing trace with hash -638364359, now seen corresponding path program 1 times [2023-11-29 04:37:07,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:07,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999443060] [2023-11-29 04:37:07,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:07,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:07,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:07,787 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:07,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 04:37:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:08,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:37:08,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:08,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:08,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:08,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999443060] [2023-11-29 04:37:08,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999443060] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:08,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:08,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:37:08,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35578004] [2023-11-29 04:37:08,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:08,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:37:08,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:08,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:37:08,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:37:08,329 INFO L87 Difference]: Start difference. First operand 389 states and 490 transitions. Second operand has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:37:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:08,646 INFO L93 Difference]: Finished difference Result 398 states and 504 transitions. [2023-11-29 04:37:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:37:08,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 66 [2023-11-29 04:37:08,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:08,649 INFO L225 Difference]: With dead ends: 398 [2023-11-29 04:37:08,649 INFO L226 Difference]: Without dead ends: 398 [2023-11-29 04:37:08,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:37:08,650 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 4 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:08,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1529 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:37:08,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-29 04:37:08,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2023-11-29 04:37:08,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 362 states have (on average 1.2624309392265194) internal successors, (457), 370 states have internal predecessors, (457), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2023-11-29 04:37:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 503 transitions. [2023-11-29 04:37:08,666 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 503 transitions. Word has length 66 [2023-11-29 04:37:08,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:08,666 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 503 transitions. [2023-11-29 04:37:08,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.0) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:37:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 503 transitions. [2023-11-29 04:37:08,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 04:37:08,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:08,668 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:08,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 04:37:08,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:08,869 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:08,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:08,869 INFO L85 PathProgramCache]: Analyzing trace with hash 997937746, now seen corresponding path program 2 times [2023-11-29 04:37:08,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:08,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132140736] [2023-11-29 04:37:08,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:37:08,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:08,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:08,871 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:08,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 04:37:09,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:37:09,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:09,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:37:09,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:09,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:37:09,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:09,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132140736] [2023-11-29 04:37:09,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132140736] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:09,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:09,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:37:09,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78949297] [2023-11-29 04:37:09,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:09,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:37:09,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:09,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:37:09,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:37:09,996 INFO L87 Difference]: Start difference. First operand 397 states and 503 transitions. Second operand has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:37:11,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:11,056 INFO L93 Difference]: Finished difference Result 409 states and 522 transitions. [2023-11-29 04:37:11,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:37:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2023-11-29 04:37:11,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:11,060 INFO L225 Difference]: With dead ends: 409 [2023-11-29 04:37:11,060 INFO L226 Difference]: Without dead ends: 407 [2023-11-29 04:37:11,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:37:11,062 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 8 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:11,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1834 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:37:11,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-11-29 04:37:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2023-11-29 04:37:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 371 states have (on average 1.2641509433962264) internal successors, (469), 379 states have internal predecessors, (469), 24 states have call successors, (24), 8 states have call predecessors, (24), 9 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2023-11-29 04:37:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 515 transitions. [2023-11-29 04:37:11,089 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 515 transitions. Word has length 69 [2023-11-29 04:37:11,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:11,089 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 515 transitions. [2023-11-29 04:37:11,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.5) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:37:11,090 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 515 transitions. [2023-11-29 04:37:11,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 04:37:11,091 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:11,091 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:11,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 04:37:11,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:11,292 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:11,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:11,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1628202766, now seen corresponding path program 3 times [2023-11-29 04:37:11,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:11,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869925840] [2023-11-29 04:37:11,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:37:11,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:11,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:11,295 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:11,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 04:37:11,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:37:11,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:11,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:37:11,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:37:12,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 04:37:12,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:12,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869925840] [2023-11-29 04:37:12,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869925840] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:12,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:12,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 04:37:12,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866027398] [2023-11-29 04:37:12,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:12,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:37:12,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:12,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:37:12,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:37:12,359 INFO L87 Difference]: Start difference. First operand 406 states and 515 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:37:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:14,556 INFO L93 Difference]: Finished difference Result 3083 states and 3979 transitions. [2023-11-29 04:37:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 04:37:14,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Word has length 75 [2023-11-29 04:37:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:14,574 INFO L225 Difference]: With dead ends: 3083 [2023-11-29 04:37:14,574 INFO L226 Difference]: Without dead ends: 3083 [2023-11-29 04:37:14,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:37:14,576 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 4128 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:14,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4154 Valid, 5538 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:37:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3083 states. [2023-11-29 04:37:14,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3083 to 2121. [2023-11-29 04:37:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 1983 states have (on average 1.2778618255168936) internal successors, (2534), 2004 states have internal predecessors, (2534), 98 states have call successors, (98), 36 states have call predecessors, (98), 38 states have return successors, (102), 80 states have call predecessors, (102), 94 states have call successors, (102) [2023-11-29 04:37:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2734 transitions. [2023-11-29 04:37:14,656 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2734 transitions. Word has length 75 [2023-11-29 04:37:14,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:14,656 INFO L495 AbstractCegarLoop]: Abstraction has 2121 states and 2734 transitions. [2023-11-29 04:37:14,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:37:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2734 transitions. [2023-11-29 04:37:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 04:37:14,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:14,658 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:14,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-29 04:37:14,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:14,859 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:14,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:14,860 INFO L85 PathProgramCache]: Analyzing trace with hash 249438597, now seen corresponding path program 1 times [2023-11-29 04:37:14,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:14,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858731485] [2023-11-29 04:37:14,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:14,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:14,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:14,862 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:14,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 04:37:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:15,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:37:15,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:37:15,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-29 04:37:17,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:17,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858731485] [2023-11-29 04:37:17,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858731485] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:17,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:17,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 04:37:17,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942609662] [2023-11-29 04:37:17,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:17,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 04:37:17,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:17,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 04:37:17,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:37:17,042 INFO L87 Difference]: Start difference. First operand 2121 states and 2734 transitions. Second operand has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:37:22,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:22,019 INFO L93 Difference]: Finished difference Result 2226 states and 2919 transitions. [2023-11-29 04:37:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 04:37:22,020 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2023-11-29 04:37:22,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:22,033 INFO L225 Difference]: With dead ends: 2226 [2023-11-29 04:37:22,033 INFO L226 Difference]: Without dead ends: 2216 [2023-11-29 04:37:22,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 04:37:22,035 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 14 mSDsluCounter, 3965 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:22,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4274 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:37:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2023-11-29 04:37:22,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2211. [2023-11-29 04:37:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2073 states have (on average 1.2802701398938736) internal successors, (2654), 2094 states have internal predecessors, (2654), 98 states have call successors, (98), 36 states have call predecessors, (98), 38 states have return successors, (102), 80 states have call predecessors, (102), 94 states have call successors, (102) [2023-11-29 04:37:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2854 transitions. [2023-11-29 04:37:22,097 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2854 transitions. Word has length 111 [2023-11-29 04:37:22,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:22,097 INFO L495 AbstractCegarLoop]: Abstraction has 2211 states and 2854 transitions. [2023-11-29 04:37:22,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.666666666666667) internal successors, (112), 26 states have internal predecessors, (112), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:37:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2854 transitions. [2023-11-29 04:37:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 04:37:22,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:22,099 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:22,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 04:37:22,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:22,300 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:22,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:22,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1525892965, now seen corresponding path program 2 times [2023-11-29 04:37:22,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:22,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022586185] [2023-11-29 04:37:22,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:37:22,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:22,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:22,302 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:22,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 04:37:22,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 04:37:22,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:22,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:37:22,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:22,656 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:37:22,657 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:37:22,657 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:37:22,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 04:37:22,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:37:22,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 04:37:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2023-11-29 04:37:22,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:37:22,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:22,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022586185] [2023-11-29 04:37:22,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2022586185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:37:22,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:37:22,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:37:22,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343223606] [2023-11-29 04:37:22,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:37:22,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:37:22,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:22,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:37:22,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:37:22,722 INFO L87 Difference]: Start difference. First operand 2211 states and 2854 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:37:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:23,307 INFO L93 Difference]: Finished difference Result 2963 states and 3856 transitions. [2023-11-29 04:37:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:37:23,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 129 [2023-11-29 04:37:23,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:23,321 INFO L225 Difference]: With dead ends: 2963 [2023-11-29 04:37:23,321 INFO L226 Difference]: Without dead ends: 2963 [2023-11-29 04:37:23,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:37:23,322 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 212 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:23,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 867 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:37:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2023-11-29 04:37:23,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 2223. [2023-11-29 04:37:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 2085 states have (on average 1.2786570743405277) internal successors, (2666), 2106 states have internal predecessors, (2666), 98 states have call successors, (98), 36 states have call predecessors, (98), 38 states have return successors, (102), 80 states have call predecessors, (102), 94 states have call successors, (102) [2023-11-29 04:37:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2866 transitions. [2023-11-29 04:37:23,374 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2866 transitions. Word has length 129 [2023-11-29 04:37:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:23,375 INFO L495 AbstractCegarLoop]: Abstraction has 2223 states and 2866 transitions. [2023-11-29 04:37:23,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:37:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2866 transitions. [2023-11-29 04:37:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 04:37:23,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:23,377 INFO L195 NwaCegarLoop]: trace histogram [33, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:23,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 04:37:23,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:23,577 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:23,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1915621368, now seen corresponding path program 1 times [2023-11-29 04:37:23,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:23,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599179499] [2023-11-29 04:37:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:37:23,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:23,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:23,581 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:23,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 04:37:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:37:24,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 04:37:24,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 311 proven. 253 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:37:25,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 554 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-29 04:37:28,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:28,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599179499] [2023-11-29 04:37:28,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599179499] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:28,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:28,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 04:37:28,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511851612] [2023-11-29 04:37:28,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 04:37:28,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:28,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 04:37:28,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 04:37:28,772 INFO L87 Difference]: Start difference. First operand 2223 states and 2866 transitions. Second operand has 50 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 50 states have internal predecessors, (130), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:37:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:37:52,602 INFO L93 Difference]: Finished difference Result 2408 states and 3211 transitions. [2023-11-29 04:37:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-11-29 04:37:52,603 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 50 states have internal predecessors, (130), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 133 [2023-11-29 04:37:52,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:37:52,614 INFO L225 Difference]: With dead ends: 2408 [2023-11-29 04:37:52,614 INFO L226 Difference]: Without dead ends: 2398 [2023-11-29 04:37:52,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2023-11-29 04:37:52,617 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 26 mSDsluCounter, 7015 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7324 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:37:52,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 7324 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 04:37:52,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2023-11-29 04:37:52,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2393. [2023-11-29 04:37:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2255 states have (on average 1.2842572062084257) internal successors, (2896), 2276 states have internal predecessors, (2896), 98 states have call successors, (98), 36 states have call predecessors, (98), 38 states have return successors, (102), 80 states have call predecessors, (102), 94 states have call successors, (102) [2023-11-29 04:37:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3096 transitions. [2023-11-29 04:37:52,681 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3096 transitions. Word has length 133 [2023-11-29 04:37:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:37:52,682 INFO L495 AbstractCegarLoop]: Abstraction has 2393 states and 3096 transitions. [2023-11-29 04:37:52,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.7083333333333335) internal successors, (130), 50 states have internal predecessors, (130), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:37:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3096 transitions. [2023-11-29 04:37:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-29 04:37:52,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:37:52,685 INFO L195 NwaCegarLoop]: trace histogram [67, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:37:52,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 04:37:52,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:52,885 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:37:52,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:37:52,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1083881752, now seen corresponding path program 2 times [2023-11-29 04:37:52,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:37:52,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982205936] [2023-11-29 04:37:52,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:37:52,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:37:52,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:37:52,888 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:37:52,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 04:37:55,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:37:55,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:37:55,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 04:37:55,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:37:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2433 backedges. 1162 proven. 276 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2023-11-29 04:37:56,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:37:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2433 backedges. 1081 proven. 301 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2023-11-29 04:37:59,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:37:59,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982205936] [2023-11-29 04:37:59,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982205936] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:37:59,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:37:59,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 04:37:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998527830] [2023-11-29 04:37:59,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:37:59,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 04:37:59,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:37:59,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 04:37:59,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 04:37:59,881 INFO L87 Difference]: Start difference. First operand 2393 states and 3096 transitions. Second operand has 52 states, 50 states have (on average 2.62) internal successors, (131), 52 states have internal predecessors, (131), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:38:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:38:30,113 INFO L93 Difference]: Finished difference Result 2528 states and 3356 transitions. [2023-11-29 04:38:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-11-29 04:38:30,114 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 2.62) internal successors, (131), 52 states have internal predecessors, (131), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 167 [2023-11-29 04:38:30,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:38:30,124 INFO L225 Difference]: With dead ends: 2528 [2023-11-29 04:38:30,124 INFO L226 Difference]: Without dead ends: 2528 [2023-11-29 04:38:30,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=3146, Invalid=6556, Unknown=0, NotChecked=0, Total=9702 [2023-11-29 04:38:30,128 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 26 mSDsluCounter, 7320 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7628 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:38:30,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 7628 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 04:38:30,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2023-11-29 04:38:30,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2518. [2023-11-29 04:38:30,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2380 states have (on average 1.3218487394957983) internal successors, (3146), 2401 states have internal predecessors, (3146), 98 states have call successors, (98), 36 states have call predecessors, (98), 38 states have return successors, (102), 80 states have call predecessors, (102), 94 states have call successors, (102) [2023-11-29 04:38:30,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3346 transitions. [2023-11-29 04:38:30,176 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3346 transitions. Word has length 167 [2023-11-29 04:38:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:38:30,176 INFO L495 AbstractCegarLoop]: Abstraction has 2518 states and 3346 transitions. [2023-11-29 04:38:30,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 2.62) internal successors, (131), 52 states have internal predecessors, (131), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:38:30,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3346 transitions. [2023-11-29 04:38:30,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 04:38:30,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:38:30,179 INFO L195 NwaCegarLoop]: trace histogram [92, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:38:30,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-29 04:38:30,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:38:30,380 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:38:30,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:38:30,380 INFO L85 PathProgramCache]: Analyzing trace with hash -309569537, now seen corresponding path program 3 times [2023-11-29 04:38:30,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:38:30,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527078578] [2023-11-29 04:38:30,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:38:30,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:38:30,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:38:30,383 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:38:30,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 04:38:33,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:38:33,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:38:33,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 04:38:33,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:38:33,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 49 [2023-11-29 04:38:34,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 450 treesize of output 330 [2023-11-29 04:38:34,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 330 treesize of output 210 [2023-11-29 04:38:34,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:38:34,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 210 treesize of output 90 [2023-11-29 04:38:36,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 116 [2023-11-29 04:38:36,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 68 [2023-11-29 04:38:36,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:38:36,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 20 [2023-11-29 04:38:36,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:38:36,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 106 [2023-11-29 04:38:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4483 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 4379 trivial. 0 not checked. [2023-11-29 04:38:37,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:38:37,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:38:37,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527078578] [2023-11-29 04:38:37,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527078578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:38:37,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:38:37,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:38:37,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735576029] [2023-11-29 04:38:37,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:38:37,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:38:37,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:38:37,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:38:37,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:38:37,015 INFO L87 Difference]: Start difference. First operand 2518 states and 3346 transitions. Second operand has 17 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:38:41,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 04:38:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:38:52,091 INFO L93 Difference]: Finished difference Result 3157 states and 4180 transitions. [2023-11-29 04:38:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:38:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 192 [2023-11-29 04:38:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:38:52,106 INFO L225 Difference]: With dead ends: 3157 [2023-11-29 04:38:52,106 INFO L226 Difference]: Without dead ends: 3152 [2023-11-29 04:38:52,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:38:52,107 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 654 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:38:52,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 2905 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-11-29 04:38:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3152 states. [2023-11-29 04:38:52,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3152 to 2789. [2023-11-29 04:38:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2631 states have (on average 1.3086278981375903) internal successors, (3443), 2659 states have internal predecessors, (3443), 108 states have call successors, (108), 41 states have call predecessors, (108), 48 states have return successors, (117), 88 states have call predecessors, (117), 104 states have call successors, (117) [2023-11-29 04:38:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 3668 transitions. [2023-11-29 04:38:52,151 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 3668 transitions. Word has length 192 [2023-11-29 04:38:52,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:38:52,152 INFO L495 AbstractCegarLoop]: Abstraction has 2789 states and 3668 transitions. [2023-11-29 04:38:52,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:38:52,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 3668 transitions. [2023-11-29 04:38:52,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 04:38:52,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:38:52,154 INFO L195 NwaCegarLoop]: trace histogram [93, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:38:52,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 04:38:52,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:38:52,354 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:38:52,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:38:52,355 INFO L85 PathProgramCache]: Analyzing trace with hash -711273574, now seen corresponding path program 4 times [2023-11-29 04:38:52,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:38:52,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261656557] [2023-11-29 04:38:52,356 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:38:52,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:38:52,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:38:52,357 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:38:52,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 04:38:54,402 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:38:54,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:38:54,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-29 04:38:54,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:38:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2406 proven. 1176 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2023-11-29 04:38:57,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:39:11,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4578 backedges. 2206 proven. 1275 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2023-11-29 04:39:11,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:39:11,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261656557] [2023-11-29 04:39:11,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261656557] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:39:11,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:39:11,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 04:39:11,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815313843] [2023-11-29 04:39:11,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:39:11,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 04:39:11,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:39:11,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 04:39:11,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 04:39:11,214 INFO L87 Difference]: Start difference. First operand 2789 states and 3668 transitions. Second operand has 102 states, 100 states have (on average 1.82) internal successors, (182), 102 states have internal predecessors, (182), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:39:34,135 WARN L293 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 201 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:39:44,304 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:39:54,270 WARN L293 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:40:03,547 WARN L293 SmtUtils]: Spent 7.37s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:40:12,599 WARN L293 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:40:21,904 WARN L293 SmtUtils]: Spent 7.37s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:40:30,475 WARN L293 SmtUtils]: Spent 6.69s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:40:38,595 WARN L293 SmtUtils]: Spent 6.22s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:40:46,202 WARN L293 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:40:54,319 WARN L293 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:41:01,484 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:41:08,846 WARN L293 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:42:51,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:51,981 INFO L93 Difference]: Finished difference Result 3069 states and 4213 transitions. [2023-11-29 04:42:51,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 04:42:51,982 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 1.82) internal successors, (182), 102 states have internal predecessors, (182), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 193 [2023-11-29 04:42:51,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:51,994 INFO L225 Difference]: With dead ends: 3069 [2023-11-29 04:42:51,994 INFO L226 Difference]: Without dead ends: 3069 [2023-11-29 04:42:52,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 224.1s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 04:42:52,003 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 102 mSDsluCounter, 15250 mSDsCounter, 0 mSdLazyCounter, 5658 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 15558 SdHoareTripleChecker+Invalid, 5716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 5658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:52,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 15558 Invalid, 5716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 5658 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-11-29 04:42:52,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2023-11-29 04:42:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 3059. [2023-11-29 04:42:52,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3059 states, 2901 states have (on average 1.3712512926577043) internal successors, (3978), 2929 states have internal predecessors, (3978), 108 states have call successors, (108), 41 states have call predecessors, (108), 48 states have return successors, (117), 88 states have call predecessors, (117), 104 states have call successors, (117) [2023-11-29 04:42:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3059 states to 3059 states and 4203 transitions. [2023-11-29 04:42:52,055 INFO L78 Accepts]: Start accepts. Automaton has 3059 states and 4203 transitions. Word has length 193 [2023-11-29 04:42:52,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:52,056 INFO L495 AbstractCegarLoop]: Abstraction has 3059 states and 4203 transitions. [2023-11-29 04:42:52,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 1.82) internal successors, (182), 102 states have internal predecessors, (182), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:42:52,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3059 states and 4203 transitions. [2023-11-29 04:42:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-11-29 04:42:52,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:52,061 INFO L195 NwaCegarLoop]: trace histogram [143, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:42:52,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-29 04:42:52,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:42:52,261 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:42:52,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:52,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1332325510, now seen corresponding path program 5 times [2023-11-29 04:42:52,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:42:52,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188881540] [2023-11-29 04:42:52,263 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:42:52,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:42:52,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:42:52,264 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:42:52,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da9b511a-76ef-4838-a7d6-39b2bb6a3eea/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 04:44:39,982 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 50 check-sat command(s) [2023-11-29 04:44:39,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:44:40,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-29 04:44:40,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:44:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10603 backedges. 4756 proven. 4851 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2023-11-29 04:44:49,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:45:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 10603 backedges. 4456 proven. 5050 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2023-11-29 04:45:36,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:45:36,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188881540] [2023-11-29 04:45:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188881540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:45:36,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:45:36,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 04:45:36,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921212550] [2023-11-29 04:45:36,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:45:36,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 04:45:36,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:45:36,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 04:45:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 04:45:36,634 INFO L87 Difference]: Start difference. First operand 3059 states and 4203 transitions. Second operand has 202 states, 200 states have (on average 1.41) internal successors, (282), 202 states have internal predecessors, (282), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:46:58,156 WARN L293 SmtUtils]: Spent 35.57s on a formula simplification that was a NOOP. DAG size: 401 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:47:40,868 WARN L293 SmtUtils]: Spent 35.50s on a formula simplification that was a NOOP. DAG size: 397 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:48:22,228 WARN L293 SmtUtils]: Spent 34.26s on a formula simplification that was a NOOP. DAG size: 393 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:49:04,613 WARN L293 SmtUtils]: Spent 35.35s on a formula simplification that was a NOOP. DAG size: 389 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:49:47,949 WARN L293 SmtUtils]: Spent 35.90s on a formula simplification that was a NOOP. DAG size: 385 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:50:30,514 WARN L293 SmtUtils]: Spent 35.34s on a formula simplification that was a NOOP. DAG size: 381 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:51:14,962 WARN L293 SmtUtils]: Spent 34.27s on a formula simplification that was a NOOP. DAG size: 377 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)