./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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_238da1eb-069b-455e-ac05-618195dbd1f6/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 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:20:50,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:20:50,886 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 01:20:50,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:20:50,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:20:50,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:20:50,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:20:50,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:20:50,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:20:50,917 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:20:50,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:20:50,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:20:50,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:20:50,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:20:50,920 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:20:50,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:20:50,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:20:50,921 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:20:50,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:20:50,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:20:50,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:20:50,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:20:50,923 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 01:20:50,924 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 01:20:50,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:20:50,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:20:50,925 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:20:50,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:20:50,926 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:20:50,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:20:50,926 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:20:50,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:20:50,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:20:50,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:20:50,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:20:50,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:20:50,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:20:50,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:20:50,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:20:50,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:20:50,929 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:20:50,929 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:20:50,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:20:50,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:20:50,930 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_238da1eb-069b-455e-ac05-618195dbd1f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 [2023-11-29 01:20:51,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:20:51,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:20:51,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:20:51,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:20:51,184 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:20:51,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-29 01:20:53,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:20:54,165 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:20:54,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-29 01:20:54,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data/cfd07fa61/a7532dc497c643fda3417a1daef4a393/FLAG6e9e1f3d3 [2023-11-29 01:20:54,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data/cfd07fa61/a7532dc497c643fda3417a1daef4a393 [2023-11-29 01:20:54,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:20:54,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:20:54,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:20:54,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:20:54,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:20:54,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:20:54" (1/1) ... [2023-11-29 01:20:54,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8144c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:20:54, skipping insertion in model container [2023-11-29 01:20:54,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:20:54" (1/1) ... [2023-11-29 01:20:54,272 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:20:54,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:20:54,907 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 01:20:54,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6cecb411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:20:54, skipping insertion in model container [2023-11-29 01:20:54,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:20:54,908 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 01:20:54,910 INFO L158 Benchmark]: Toolchain (without parser) took 707.68ms. Allocated memory is still 155.2MB. Free memory was 113.4MB in the beginning and 118.4MB in the end (delta: -5.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2023-11-29 01:20:54,911 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:20:54,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 705.30ms. Allocated memory is still 155.2MB. Free memory was 113.4MB in the beginning and 118.4MB in the end (delta: -5.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2023-11-29 01:20:54,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 705.30ms. Allocated memory is still 155.2MB. Free memory was 113.4MB in the beginning and 118.4MB in the end (delta: -5.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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_238da1eb-069b-455e-ac05-618195dbd1f6/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 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:20:56,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:20:56,733 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 01:20:56,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:20:56,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:20:56,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:20:56,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:20:56,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:20:56,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:20:56,771 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:20:56,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:20:56,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:20:56,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:20:56,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:20:56,774 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:20:56,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:20:56,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:20:56,776 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:20:56,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:20:56,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:20:56,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:20:56,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:20:56,778 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 01:20:56,779 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 01:20:56,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:20:56,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:20:56,780 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:20:56,781 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:20:56,781 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:20:56,781 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:20:56,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:20:56,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:20:56,782 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:20:56,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:20:56,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:20:56,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:20:56,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:20:56,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:20:56,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:20:56,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:20:56,785 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:20:56,785 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:20:56,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:20:56,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:20:56,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:20:56,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:20:56,786 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:20:56,786 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_238da1eb-069b-455e-ac05-618195dbd1f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 [2023-11-29 01:20:57,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:20:57,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:20:57,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:20:57,100 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:20:57,101 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:20:57,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-29 01:20:59,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:21:00,239 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:21:00,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-29 01:21:00,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data/2698ed76f/c0b6f4f2df5642579103e3daf2ef0782/FLAG91f5711a3 [2023-11-29 01:21:00,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/data/2698ed76f/c0b6f4f2df5642579103e3daf2ef0782 [2023-11-29 01:21:00,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:21:00,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:21:00,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:21:00,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:21:00,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:21:00,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:21:00" (1/1) ... [2023-11-29 01:21:00,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6509d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:00, skipping insertion in model container [2023-11-29 01:21:00,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:21:00" (1/1) ... [2023-11-29 01:21:00,357 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:21:00,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:21:00,957 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 01:21:00,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:21:01,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:21:01,077 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:21:01,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:21:01,204 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:21:01,210 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:21:01,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01 WrapperNode [2023-11-29 01:21:01,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:21:01,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:21:01,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:21:01,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:21:01,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,346 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2867 [2023-11-29 01:21:01,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:21:01,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:21:01,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:21:01,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:21:01,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,446 INFO L175 MemorySlicer]: Split 213 memory accesses to 4 slices as follows [2, 5, 172, 34]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 1, 42, 4]. [2023-11-29 01:21:01,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:21:01,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:21:01,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:21:01,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:21:01,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (1/1) ... [2023-11-29 01:21:01,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:21:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:21:01,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:21:01,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:21:01,620 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 01:21:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 01:21:01,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 01:21:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 01:21:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 01:21:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 01:21:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 01:21:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 01:21:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 01:21:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 01:21:01,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:21:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:21:01,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 01:21:01,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 01:21:01,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 01:21:01,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 01:21:01,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 01:21:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 01:21:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 01:21:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 01:21:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:21:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:21:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:21:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:21:01,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 01:21:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 01:21:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:21:01,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:21:01,842 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:21:01,844 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:21:12,548 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:21:12,613 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:21:12,614 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-29 01:21:12,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:21:12 BoogieIcfgContainer [2023-11-29 01:21:12,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:21:12,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:21:12,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:21:12,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:21:12,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:21:00" (1/3) ... [2023-11-29 01:21:12,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226a9961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:21:12, skipping insertion in model container [2023-11-29 01:21:12,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:21:01" (2/3) ... [2023-11-29 01:21:12,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226a9961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:21:12, skipping insertion in model container [2023-11-29 01:21:12,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:21:12" (3/3) ... [2023-11-29 01:21:12,625 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test9-1.i [2023-11-29 01:21:12,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:21:12,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 01:21:12,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:21:12,726 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;@76c81763, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:21:12,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 01:21:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 1172 states, 661 states have (on average 1.91981845688351) internal successors, (1269), 1165 states have internal predecessors, (1269), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-29 01:21:12,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:21:12,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:12,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:21:12,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:12,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:12,747 INFO L85 PathProgramCache]: Analyzing trace with hash -737160645, now seen corresponding path program 1 times [2023-11-29 01:21:12,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:12,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078078841] [2023-11-29 01:21:12,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:12,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:12,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:12,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:12,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 01:21:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:12,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:21:12,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:21:12,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:12,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:12,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078078841] [2023-11-29 01:21:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078078841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:12,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:12,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:21:12,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676491085] [2023-11-29 01:21:12,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:12,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:21:12,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:12,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:21:12,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:21:12,981 INFO L87 Difference]: Start difference. First operand has 1172 states, 661 states have (on average 1.91981845688351) internal successors, (1269), 1165 states have internal predecessors, (1269), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:13,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:13,131 INFO L93 Difference]: Finished difference Result 1170 states and 2216 transitions. [2023-11-29 01:21:13,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:21:13,134 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 01:21:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:13,161 INFO L225 Difference]: With dead ends: 1170 [2023-11-29 01:21:13,162 INFO L226 Difference]: Without dead ends: 1169 [2023-11-29 01:21:13,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:21:13,167 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:13,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2212 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:21:13,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-11-29 01:21:13,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2023-11-29 01:21:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 660 states have (on average 1.8287878787878789) internal successors, (1207), 1162 states have internal predecessors, (1207), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 01:21:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 2215 transitions. [2023-11-29 01:21:13,602 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 2215 transitions. Word has length 6 [2023-11-29 01:21:13,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:13,602 INFO L495 AbstractCegarLoop]: Abstraction has 1169 states and 2215 transitions. [2023-11-29 01:21:13,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:13,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 2215 transitions. [2023-11-29 01:21:13,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 01:21:13,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:13,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:13,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:21:13,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:13,804 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:13,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:13,805 INFO L85 PathProgramCache]: Analyzing trace with hash 234868585, now seen corresponding path program 1 times [2023-11-29 01:21:13,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:13,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55743085] [2023-11-29 01:21:13,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:13,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:13,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:13,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:13,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 01:21:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:13,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:21:13,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:14,034 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:21:14,035 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:21:14,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2023-11-29 01:21:14,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:21:14,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2023-11-29 01:21:14,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:21:14,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:14,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:14,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55743085] [2023-11-29 01:21:14,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55743085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:14,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:14,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:21:14,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793808400] [2023-11-29 01:21:14,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:14,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:21:14,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:14,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:21:14,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:21:14,147 INFO L87 Difference]: Start difference. First operand 1169 states and 2215 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:17,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:17,321 INFO L93 Difference]: Finished difference Result 2323 states and 4416 transitions. [2023-11-29 01:21:17,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:21:17,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 01:21:17,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:17,343 INFO L225 Difference]: With dead ends: 2323 [2023-11-29 01:21:17,344 INFO L226 Difference]: Without dead ends: 2323 [2023-11-29 01:21:17,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:21:17,345 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 1191 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 6219 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:17,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 6219 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 01:21:17,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2023-11-29 01:21:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 1171. [2023-11-29 01:21:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 662 states have (on average 1.8262839879154078) internal successors, (1209), 1164 states have internal predecessors, (1209), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 01:21:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 2217 transitions. [2023-11-29 01:21:17,767 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 2217 transitions. Word has length 8 [2023-11-29 01:21:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:17,768 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 2217 transitions. [2023-11-29 01:21:17,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 2217 transitions. [2023-11-29 01:21:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 01:21:17,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:17,771 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, 1, 1, 1, 1] [2023-11-29 01:21:17,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 01:21:17,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:17,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:17,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:17,975 INFO L85 PathProgramCache]: Analyzing trace with hash 865813531, now seen corresponding path program 1 times [2023-11-29 01:21:17,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:17,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564723313] [2023-11-29 01:21:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:17,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:17,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:18,004 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:18,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 01:21:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:18,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:21:18,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:18,376 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 01:21:18,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:18,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:18,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564723313] [2023-11-29 01:21:18,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564723313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:18,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:18,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:21:18,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524391180] [2023-11-29 01:21:18,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:18,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:21:18,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:18,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:21:18,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:21:18,379 INFO L87 Difference]: Start difference. First operand 1171 states and 2217 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:18,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:18,550 INFO L93 Difference]: Finished difference Result 1175 states and 2213 transitions. [2023-11-29 01:21:18,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:21:18,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 01:21:18,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:18,573 INFO L225 Difference]: With dead ends: 1175 [2023-11-29 01:21:18,573 INFO L226 Difference]: Without dead ends: 1175 [2023-11-29 01:21:18,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:21:18,574 INFO L413 NwaCegarLoop]: 2183 mSDtfsCounter, 36 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6525 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:18,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6525 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:21:18,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2023-11-29 01:21:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1174. [2023-11-29 01:21:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 665 states have (on average 1.8105263157894738) internal successors, (1204), 1167 states have internal predecessors, (1204), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 01:21:18,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 2212 transitions. [2023-11-29 01:21:18,789 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 2212 transitions. Word has length 64 [2023-11-29 01:21:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:18,790 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 2212 transitions. [2023-11-29 01:21:18,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 2212 transitions. [2023-11-29 01:21:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 01:21:18,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:18,792 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, 1, 1, 1, 1] [2023-11-29 01:21:18,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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)] Forceful destruction successful, exit code 0 [2023-11-29 01:21:18,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:18,996 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:18,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:18,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1357954289, now seen corresponding path program 1 times [2023-11-29 01:21:18,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:18,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883495328] [2023-11-29 01:21:18,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:18,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:18,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:18,999 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:19,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 01:21:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:19,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:21:19,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:19,700 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 01:21:19,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:19,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:19,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883495328] [2023-11-29 01:21:19,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883495328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:19,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:19,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:21:19,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957302050] [2023-11-29 01:21:19,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:19,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:21:19,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:19,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:21:19,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:21:19,704 INFO L87 Difference]: Start difference. First operand 1174 states and 2212 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:20,613 INFO L93 Difference]: Finished difference Result 2265 states and 4320 transitions. [2023-11-29 01:21:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:21:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 01:21:20,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:20,628 INFO L225 Difference]: With dead ends: 2265 [2023-11-29 01:21:20,628 INFO L226 Difference]: Without dead ends: 2265 [2023-11-29 01:21:20,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:21:20,629 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 1071 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 4440 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:20,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 4440 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:21:20,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2023-11-29 01:21:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2261. [2023-11-29 01:21:20,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1252 states have (on average 1.8442492012779552) internal successors, (2309), 2254 states have internal predecessors, (2309), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 01:21:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 4317 transitions. [2023-11-29 01:21:20,978 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 4317 transitions. Word has length 64 [2023-11-29 01:21:20,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:20,978 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 4317 transitions. [2023-11-29 01:21:20,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:21:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 4317 transitions. [2023-11-29 01:21:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 01:21:20,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:20,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:20,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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 01:21:21,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:21,192 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:21,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:21,193 INFO L85 PathProgramCache]: Analyzing trace with hash -725458688, now seen corresponding path program 1 times [2023-11-29 01:21:21,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:21,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407508083] [2023-11-29 01:21:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:21,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:21,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:21,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:21,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 01:21:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:21,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:21:21,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:21:21,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:21,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:21,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407508083] [2023-11-29 01:21:21,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407508083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:21,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:21,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:21:21,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774386959] [2023-11-29 01:21:21,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:21,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:21:21,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:21,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:21:21,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:21:21,721 INFO L87 Difference]: Start difference. First operand 2261 states and 4317 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:21:21,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:21,829 INFO L93 Difference]: Finished difference Result 2263 states and 4320 transitions. [2023-11-29 01:21:21,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:21:21,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-29 01:21:21,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:21,851 INFO L225 Difference]: With dead ends: 2263 [2023-11-29 01:21:21,851 INFO L226 Difference]: Without dead ends: 2263 [2023-11-29 01:21:21,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:21:21,852 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 1 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6593 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:21,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6593 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:21:21,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2023-11-29 01:21:22,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2263. [2023-11-29 01:21:22,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 1253 states have (on average 1.8443735035913806) internal successors, (2311), 2256 states have internal predecessors, (2311), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:21:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 4320 transitions. [2023-11-29 01:21:22,337 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 4320 transitions. Word has length 77 [2023-11-29 01:21:22,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:22,337 INFO L495 AbstractCegarLoop]: Abstraction has 2263 states and 4320 transitions. [2023-11-29 01:21:22,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:21:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 4320 transitions. [2023-11-29 01:21:22,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 01:21:22,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:22,339 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:22,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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)] Forceful destruction successful, exit code 0 [2023-11-29 01:21:22,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:22,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:22,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:22,542 INFO L85 PathProgramCache]: Analyzing trace with hash -67954680, now seen corresponding path program 1 times [2023-11-29 01:21:22,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:22,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186967795] [2023-11-29 01:21:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:22,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:22,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:22,544 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:22,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 01:21:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:23,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:21:23,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:21:23,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:21:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:21:23,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186967795] [2023-11-29 01:21:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186967795] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:21:23,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:21:23,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:21:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967557502] [2023-11-29 01:21:23,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:21:23,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:21:23,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:21:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:21:23,148 INFO L87 Difference]: Start difference. First operand 2263 states and 4320 transitions. Second operand has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:23,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:23,434 INFO L93 Difference]: Finished difference Result 2272 states and 4334 transitions. [2023-11-29 01:21:23,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:21:23,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2023-11-29 01:21:23,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:23,448 INFO L225 Difference]: With dead ends: 2272 [2023-11-29 01:21:23,448 INFO L226 Difference]: Without dead ends: 2272 [2023-11-29 01:21:23,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:21:23,449 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 6 mSDsluCounter, 6589 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8788 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:23,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8788 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:21:23,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2023-11-29 01:21:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2271. [2023-11-29 01:21:23,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 1260 states have (on average 1.8444444444444446) internal successors, (2324), 2263 states have internal predecessors, (2324), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:21:23,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 4333 transitions. [2023-11-29 01:21:23,782 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 4333 transitions. Word has length 79 [2023-11-29 01:21:23,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:23,783 INFO L495 AbstractCegarLoop]: Abstraction has 2271 states and 4333 transitions. [2023-11-29 01:21:23,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.5) internal successors, (81), 8 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:23,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 4333 transitions. [2023-11-29 01:21:23,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 01:21:23,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:23,785 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:23,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 01:21:23,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:23,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:23,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:23,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1149363360, now seen corresponding path program 2 times [2023-11-29 01:21:23,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:23,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928150274] [2023-11-29 01:21:23,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:21:23,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:23,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:23,989 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:23,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 01:21:24,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:21:24,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:21:24,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:21:24,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:24,309 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:21:24,310 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:21:24,311 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:21:24,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 01:21:24,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:21:24,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 01:21:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 01:21:24,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:24,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:24,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928150274] [2023-11-29 01:21:24,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928150274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:24,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:24,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:21:24,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337209507] [2023-11-29 01:21:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:24,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:21:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:21:24,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:21:24,396 INFO L87 Difference]: Start difference. First operand 2271 states and 4333 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:21:27,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:27,311 INFO L93 Difference]: Finished difference Result 4387 states and 8484 transitions. [2023-11-29 01:21:27,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:21:27,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-11-29 01:21:27,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:27,339 INFO L225 Difference]: With dead ends: 4387 [2023-11-29 01:21:27,340 INFO L226 Difference]: Without dead ends: 4387 [2023-11-29 01:21:27,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:21:27,341 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 1176 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 6066 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:27,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 6066 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 01:21:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2023-11-29 01:21:28,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 2273. [2023-11-29 01:21:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1262 states have (on average 1.8431061806656102) internal successors, (2326), 2265 states have internal predecessors, (2326), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:21:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 4335 transitions. [2023-11-29 01:21:28,093 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 4335 transitions. Word has length 83 [2023-11-29 01:21:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:28,093 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 4335 transitions. [2023-11-29 01:21:28,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:21:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 4335 transitions. [2023-11-29 01:21:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 01:21:28,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:28,096 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:28,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 01:21:28,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:28,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:28,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1361236248, now seen corresponding path program 1 times [2023-11-29 01:21:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:28,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435327044] [2023-11-29 01:21:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:28,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:28,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:28,299 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:28,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 01:21:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:28,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:21:28,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:21:28,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:21:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:21:29,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:29,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435327044] [2023-11-29 01:21:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435327044] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:21:29,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:21:29,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 01:21:29,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381771422] [2023-11-29 01:21:29,052 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:21:29,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:21:29,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:29,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:21:29,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:21:29,054 INFO L87 Difference]: Start difference. First operand 2273 states and 4335 transitions. Second operand has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:29,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:29,887 INFO L93 Difference]: Finished difference Result 2288 states and 4357 transitions. [2023-11-29 01:21:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:21:29,889 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 122 [2023-11-29 01:21:29,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:29,907 INFO L225 Difference]: With dead ends: 2288 [2023-11-29 01:21:29,907 INFO L226 Difference]: Without dead ends: 2286 [2023-11-29 01:21:29,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:21:29,908 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 13 mSDsluCounter, 13178 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15377 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:29,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15377 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:21:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2023-11-29 01:21:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 2282. [2023-11-29 01:21:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 1271 states have (on average 1.839496459480724) internal successors, (2338), 2274 states have internal predecessors, (2338), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:21:30,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 4347 transitions. [2023-11-29 01:21:30,249 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 4347 transitions. Word has length 122 [2023-11-29 01:21:30,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:30,249 INFO L495 AbstractCegarLoop]: Abstraction has 2282 states and 4347 transitions. [2023-11-29 01:21:30,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:30,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 4347 transitions. [2023-11-29 01:21:30,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 01:21:30,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:30,251 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:30,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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)] Forceful destruction successful, exit code 0 [2023-11-29 01:21:30,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:30,451 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:30,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:30,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2090371271, now seen corresponding path program 2 times [2023-11-29 01:21:30,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:30,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488488130] [2023-11-29 01:21:30,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:21:30,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:30,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:30,454 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:30,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 01:21:30,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:21:30,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:21:30,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:21:30,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-29 01:21:30,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:30,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:30,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488488130] [2023-11-29 01:21:30,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488488130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:30,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:30,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:21:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338146100] [2023-11-29 01:21:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:30,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:21:30,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:30,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:21:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:21:30,758 INFO L87 Difference]: Start difference. First operand 2282 states and 4347 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:21:30,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:30,876 INFO L93 Difference]: Finished difference Result 2290 states and 4339 transitions. [2023-11-29 01:21:30,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:21:30,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 131 [2023-11-29 01:21:30,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:30,893 INFO L225 Difference]: With dead ends: 2290 [2023-11-29 01:21:30,893 INFO L226 Difference]: Without dead ends: 2290 [2023-11-29 01:21:30,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:21:30,894 INFO L413 NwaCegarLoop]: 2172 mSDtfsCounter, 36 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6492 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:30,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6492 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:21:30,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2023-11-29 01:21:31,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2288. [2023-11-29 01:21:31,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2288 states, 1277 states have (on average 1.8230227094753328) internal successors, (2328), 2280 states have internal predecessors, (2328), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:21:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 4337 transitions. [2023-11-29 01:21:31,234 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 4337 transitions. Word has length 131 [2023-11-29 01:21:31,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:31,235 INFO L495 AbstractCegarLoop]: Abstraction has 2288 states and 4337 transitions. [2023-11-29 01:21:31,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:21:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 4337 transitions. [2023-11-29 01:21:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 01:21:31,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:31,237 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:31,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 01:21:31,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:31,438 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:31,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:31,438 INFO L85 PathProgramCache]: Analyzing trace with hash -992568787, now seen corresponding path program 1 times [2023-11-29 01:21:31,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:31,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918319447] [2023-11-29 01:21:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:21:31,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:31,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:31,440 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:31,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 01:21:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:21:31,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:21:31,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 01:21:32,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:21:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:21:32,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:32,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918319447] [2023-11-29 01:21:32,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918319447] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:21:32,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:21:32,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 01:21:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996526442] [2023-11-29 01:21:32,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:21:32,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 01:21:32,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:32,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 01:21:32,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:21:32,831 INFO L87 Difference]: Start difference. First operand 2288 states and 4337 transitions. Second operand has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:35,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:35,554 INFO L93 Difference]: Finished difference Result 2318 states and 4383 transitions. [2023-11-29 01:21:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 01:21:35,555 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2023-11-29 01:21:35,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:35,568 INFO L225 Difference]: With dead ends: 2318 [2023-11-29 01:21:35,568 INFO L226 Difference]: Without dead ends: 2316 [2023-11-29 01:21:35,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 01:21:35,570 INFO L413 NwaCegarLoop]: 2188 mSDtfsCounter, 24 mSDsluCounter, 26221 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 28409 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:35,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 28409 Invalid, 704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:21:35,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2023-11-29 01:21:35,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2306. [2023-11-29 01:21:35,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 1295 states have (on average 1.8162162162162163) internal successors, (2352), 2298 states have internal predecessors, (2352), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:21:35,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 4361 transitions. [2023-11-29 01:21:35,893 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 4361 transitions. Word has length 131 [2023-11-29 01:21:35,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:35,894 INFO L495 AbstractCegarLoop]: Abstraction has 2306 states and 4361 transitions. [2023-11-29 01:21:35,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:35,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 4361 transitions. [2023-11-29 01:21:35,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 01:21:35,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:35,895 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:35,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-29 01:21:36,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:36,096 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:36,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash 716625165, now seen corresponding path program 2 times [2023-11-29 01:21:36,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43114046] [2023-11-29 01:21:36,098 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:21:36,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:36,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:36,099 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:36,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 01:21:36,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:21:36,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:21:36,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:21:36,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 01:21:37,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:21:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 01:21:39,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:39,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43114046] [2023-11-29 01:21:39,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43114046] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:21:39,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:21:39,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 01:21:39,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70405773] [2023-11-29 01:21:39,675 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:21:39,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 01:21:39,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:39,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 01:21:39,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 01:21:39,679 INFO L87 Difference]: Start difference. First operand 2306 states and 4361 transitions. Second operand has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:21:50,922 INFO L93 Difference]: Finished difference Result 2364 states and 4451 transitions. [2023-11-29 01:21:50,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 01:21:50,923 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 149 [2023-11-29 01:21:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:21:50,929 INFO L225 Difference]: With dead ends: 2364 [2023-11-29 01:21:50,929 INFO L226 Difference]: Without dead ends: 2362 [2023-11-29 01:21:50,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=3840, Invalid=9500, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 01:21:50,935 INFO L413 NwaCegarLoop]: 2188 mSDtfsCounter, 48 mSDsluCounter, 58993 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 61181 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:21:50,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 61181 Invalid, 2617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 01:21:50,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2023-11-29 01:21:51,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2340. [2023-11-29 01:21:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2340 states, 1329 states have (on average 1.8043641835966893) internal successors, (2398), 2332 states have internal predecessors, (2398), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 01:21:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2340 states to 2340 states and 4407 transitions. [2023-11-29 01:21:51,248 INFO L78 Accepts]: Start accepts. Automaton has 2340 states and 4407 transitions. Word has length 149 [2023-11-29 01:21:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:21:51,248 INFO L495 AbstractCegarLoop]: Abstraction has 2340 states and 4407 transitions. [2023-11-29 01:21:51,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:21:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2340 states and 4407 transitions. [2023-11-29 01:21:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-29 01:21:51,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:21:51,251 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:21:51,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/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 01:21:51,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:51,452 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:21:51,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:21:51,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1339347475, now seen corresponding path program 3 times [2023-11-29 01:21:51,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:21:51,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353599067] [2023-11-29 01:21:51,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:21:51,453 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:21:51,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:21:51,454 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:21:51,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 01:21:52,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:21:52,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:21:52,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:21:52,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:21:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-29 01:21:52,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:21:52,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:21:52,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353599067] [2023-11-29 01:21:52,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353599067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:21:52,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:21:52,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:21:52,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455485494] [2023-11-29 01:21:52,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:21:52,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:21:52,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:21:52,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:21:52,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:21:52,366 INFO L87 Difference]: Start difference. First operand 2340 states and 4407 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:21:57,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:22:01,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:22:04,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:22:04,754 INFO L93 Difference]: Finished difference Result 1292 states and 2351 transitions. [2023-11-29 01:22:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:22:04,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 183 [2023-11-29 01:22:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:22:04,758 INFO L225 Difference]: With dead ends: 1292 [2023-11-29 01:22:04,758 INFO L226 Difference]: Without dead ends: 1292 [2023-11-29 01:22:04,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:22:04,759 INFO L413 NwaCegarLoop]: 2191 mSDtfsCounter, 2243 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1003 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:22:04,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2243 Valid, 3259 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 53 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2023-11-29 01:22:04,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2023-11-29 01:22:04,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1292. [2023-11-29 01:22:04,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 781 states have (on average 1.7183098591549295) internal successors, (1342), 1284 states have internal predecessors, (1342), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2023-11-29 01:22:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 2351 transitions. [2023-11-29 01:22:04,922 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 2351 transitions. Word has length 183 [2023-11-29 01:22:04,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:22:04,922 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 2351 transitions. [2023-11-29 01:22:04,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:22:04,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 2351 transitions. [2023-11-29 01:22:04,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-29 01:22:04,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:22:04,924 INFO L195 NwaCegarLoop]: trace histogram [67, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:22:04,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 01:22:05,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:22:05,125 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:22:05,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:22:05,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1561711543, now seen corresponding path program 1 times [2023-11-29 01:22:05,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:22:05,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864392267] [2023-11-29 01:22:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:22:05,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:22:05,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:22:05,128 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:22:05,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 01:22:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:22:06,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:22:06,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:22:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 01:22:06,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:22:09,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 1083 proven. 276 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 01:22:09,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:22:09,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864392267] [2023-11-29 01:22:09,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864392267] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:22:09,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:22:09,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 01:22:09,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713529625] [2023-11-29 01:22:09,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:22:09,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 01:22:09,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:22:09,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 01:22:09,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=726, Invalid=1926, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 01:22:09,217 INFO L87 Difference]: Start difference. First operand 1292 states and 2351 transitions. Second operand has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:22:20,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:22:20,101 INFO L93 Difference]: Finished difference Result 1341 states and 2425 transitions. [2023-11-29 01:22:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-11-29 01:22:20,102 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 191 [2023-11-29 01:22:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:22:20,105 INFO L225 Difference]: With dead ends: 1341 [2023-11-29 01:22:20,105 INFO L226 Difference]: Without dead ends: 1341 [2023-11-29 01:22:20,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3563 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=4418, Invalid=10588, Unknown=0, NotChecked=0, Total=15006 [2023-11-29 01:22:20,110 INFO L413 NwaCegarLoop]: 2186 mSDtfsCounter, 54 mSDsluCounter, 52394 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 54580 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:22:20,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 54580 Invalid, 2038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 01:22:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-11-29 01:22:20,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1317. [2023-11-29 01:22:20,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 806 states have (on average 1.7270471464019852) internal successors, (1392), 1309 states have internal predecessors, (1392), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2023-11-29 01:22:20,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 2401 transitions. [2023-11-29 01:22:20,261 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 2401 transitions. Word has length 191 [2023-11-29 01:22:20,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:22:20,261 INFO L495 AbstractCegarLoop]: Abstraction has 1317 states and 2401 transitions. [2023-11-29 01:22:20,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 3.36) internal successors, (168), 52 states have internal predecessors, (168), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:22:20,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 2401 transitions. [2023-11-29 01:22:20,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 01:22:20,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:22:20,263 INFO L195 NwaCegarLoop]: trace histogram [92, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:22:20,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 01:22:20,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:22:20,464 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:22:20,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:22:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2010552314, now seen corresponding path program 2 times [2023-11-29 01:22:20,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:22:20,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283031349] [2023-11-29 01:22:20,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:22:20,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:22:20,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:22:20,466 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:22:20,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 01:22:22,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:22:22,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:22:22,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-29 01:22:22,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:22:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 01:22:24,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:22:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4375 backedges. 2208 proven. 1176 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 01:22:33,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:22:33,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283031349] [2023-11-29 01:22:33,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283031349] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:22:33,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:22:33,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 102 [2023-11-29 01:22:33,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867105677] [2023-11-29 01:22:33,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:22:33,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 01:22:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:22:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 01:22:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=7601, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 01:22:33,307 INFO L87 Difference]: Start difference. First operand 1317 states and 2401 transitions. Second operand has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:23:25,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:25,760 INFO L93 Difference]: Finished difference Result 1424 states and 2561 transitions. [2023-11-29 01:23:25,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2023-11-29 01:23:25,761 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 216 [2023-11-29 01:23:25,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:25,765 INFO L225 Difference]: With dead ends: 1424 [2023-11-29 01:23:25,765 INFO L226 Difference]: Without dead ends: 1424 [2023-11-29 01:23:25,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7008 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=12595, Invalid=26807, Unknown=0, NotChecked=0, Total=39402 [2023-11-29 01:23:25,772 INFO L413 NwaCegarLoop]: 2186 mSDtfsCounter, 164 mSDsluCounter, 109152 mSDsCounter, 0 mSdLazyCounter, 7953 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 111338 SdHoareTripleChecker+Invalid, 8034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 7953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:25,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 111338 Invalid, 8034 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [81 Valid, 7953 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-11-29 01:23:25,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2023-11-29 01:23:25,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1371. [2023-11-29 01:23:25,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 860 states have (on average 1.7430232558139536) internal successors, (1499), 1363 states have internal predecessors, (1499), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2023-11-29 01:23:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2508 transitions. [2023-11-29 01:23:25,946 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2508 transitions. Word has length 216 [2023-11-29 01:23:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:25,946 INFO L495 AbstractCegarLoop]: Abstraction has 1371 states and 2508 transitions. [2023-11-29 01:23:25,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 100 states have (on average 2.18) internal successors, (218), 102 states have internal predecessors, (218), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:23:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2508 transitions. [2023-11-29 01:23:25,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 01:23:25,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:25,948 INFO L195 NwaCegarLoop]: trace histogram [142, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:25,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 01:23:26,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:23:26,148 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:23:26,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:26,150 INFO L85 PathProgramCache]: Analyzing trace with hash 67747110, now seen corresponding path program 3 times [2023-11-29 01:23:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:23:26,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534661955] [2023-11-29 01:23:26,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:23:26,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:23:26,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:23:26,152 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:23:26,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 01:23:27,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:23:27,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:23:27,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:23:27,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:27,559 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:23:27,560 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:23:27,561 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 01:23:27,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 01:23:32,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:23:32,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 87 [2023-11-29 01:23:32,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:23:32,869 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 118 treesize of output 74 [2023-11-29 01:23:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-29 01:23:32,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:33,649 INFO L134 CoverageAnalysis]: Checked inductivity of 10300 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10298 trivial. 0 not checked. [2023-11-29 01:23:33,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:23:33,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534661955] [2023-11-29 01:23:33,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534661955] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:23:33,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:23:33,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-29 01:23:33,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343660128] [2023-11-29 01:23:33,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:33,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:23:33,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:23:33,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:23:33,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:23:33,651 INFO L87 Difference]: Start difference. First operand 1371 states and 2508 transitions. Second operand has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:23:38,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:23:42,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:23:46,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:23:50,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:23:54,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:23:58,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:02,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:06,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:10,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:15,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:19,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:23,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:27,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:31,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:36,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:24:53,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:25:05,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:05,777 INFO L93 Difference]: Finished difference Result 3902 states and 7218 transitions. [2023-11-29 01:25:05,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:25:05,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 266 [2023-11-29 01:25:05,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:05,786 INFO L225 Difference]: With dead ends: 3902 [2023-11-29 01:25:05,786 INFO L226 Difference]: Without dead ends: 3902 [2023-11-29 01:25:05,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 517 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:25:05,787 INFO L413 NwaCegarLoop]: 1760 mSDtfsCounter, 11849 mSDsluCounter, 9117 mSDsCounter, 0 mSdLazyCounter, 4141 mSolverCounterSat, 4524 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12352 SdHoareTripleChecker+Valid, 10877 SdHoareTripleChecker+Invalid, 8681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4524 IncrementalHoareTripleChecker+Valid, 4141 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:05,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12352 Valid, 10877 Invalid, 8681 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4524 Valid, 4141 Invalid, 16 Unknown, 0 Unchecked, 91.4s Time] [2023-11-29 01:25:05,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2023-11-29 01:25:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 1582. [2023-11-29 01:25:06,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1067 states have (on average 1.6354264292408622) internal successors, (1745), 1570 states have internal predecessors, (1745), 508 states have call successors, (508), 5 states have call predecessors, (508), 5 states have return successors, (507), 7 states have call predecessors, (507), 506 states have call successors, (507) [2023-11-29 01:25:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2760 transitions. [2023-11-29 01:25:06,248 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2760 transitions. Word has length 266 [2023-11-29 01:25:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:06,248 INFO L495 AbstractCegarLoop]: Abstraction has 1582 states and 2760 transitions. [2023-11-29 01:25:06,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:25:06,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2760 transitions. [2023-11-29 01:25:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2023-11-29 01:25:06,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:06,251 INFO L195 NwaCegarLoop]: trace histogram [142, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:25:06,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 01:25:06,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:25:06,452 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:25:06,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:06,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1252554996, now seen corresponding path program 1 times [2023-11-29 01:25:06,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:25:06,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245416987] [2023-11-29 01:25:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:06,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:25:06,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:25:06,456 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:25:06,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 01:25:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:09,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 101 conjunts are in the unsatisfiable core [2023-11-29 01:25:09,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:25:19,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:25:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 10636 backedges. 4572 proven. 4851 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:25:54,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:25:54,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245416987] [2023-11-29 01:25:54,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245416987] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:25:54,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:25:54,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 202 [2023-11-29 01:25:54,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254290557] [2023-11-29 01:25:54,975 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:25:54,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2023-11-29 01:25:54,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:25:54,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2023-11-29 01:25:54,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10401, Invalid=30201, Unknown=0, NotChecked=0, Total=40602 [2023-11-29 01:25:54,984 INFO L87 Difference]: Start difference. First operand 1582 states and 2760 transitions. Second operand has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:31:06,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:31:06,962 INFO L93 Difference]: Finished difference Result 2083 states and 3759 transitions. [2023-11-29 01:31:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2023-11-29 01:31:06,963 INFO L78 Accepts]: Start accepts. Automaton has has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 434 [2023-11-29 01:31:06,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:31:06,970 INFO L225 Difference]: With dead ends: 2083 [2023-11-29 01:31:06,970 INFO L226 Difference]: Without dead ends: 2083 [2023-11-29 01:31:06,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 397 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29006 ImplicationChecksByTransitivity, 281.3s TimeCoverageRelationStatistics Valid=50195, Invalid=108607, Unknown=0, NotChecked=0, Total=158802 [2023-11-29 01:31:06,985 INFO L413 NwaCegarLoop]: 2186 mSDtfsCounter, 166 mSDsluCounter, 216119 mSDsCounter, 0 mSdLazyCounter, 30896 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 218305 SdHoareTripleChecker+Invalid, 31008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 30896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:31:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 218305 Invalid, 31008 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [112 Valid, 30896 Invalid, 0 Unknown, 0 Unchecked, 66.3s Time] [2023-11-29 01:31:06,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2023-11-29 01:31:07,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1682. [2023-11-29 01:31:07,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1167 states have (on average 1.6666666666666667) internal successors, (1945), 1670 states have internal predecessors, (1945), 508 states have call successors, (508), 5 states have call predecessors, (508), 5 states have return successors, (507), 7 states have call predecessors, (507), 506 states have call successors, (507) [2023-11-29 01:31:07,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2960 transitions. [2023-11-29 01:31:07,211 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2960 transitions. Word has length 434 [2023-11-29 01:31:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:31:07,211 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2960 transitions. [2023-11-29 01:31:07,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 200 states have (on average 1.785) internal successors, (357), 202 states have internal predecessors, (357), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:31:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2960 transitions. [2023-11-29 01:31:07,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-11-29 01:31:07,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:07,217 INFO L195 NwaCegarLoop]: trace histogram [242, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:31:07,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-29 01:31:07,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:31:07,418 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 01:31:07,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash 433408820, now seen corresponding path program 2 times [2023-11-29 01:31:07,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:31:07,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788322276] [2023-11-29 01:31:07,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:31:07,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 01:31:07,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:31:07,464 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 01:31:07,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_238da1eb-069b-455e-ac05-618195dbd1f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 01:31:11,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:31:11,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:31:11,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 201 conjunts are in the unsatisfiable core [2023-11-29 01:31:11,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:31:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:31:40,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:32:10,106 WARN L293 SmtUtils]: Spent 29.16s on a formula simplification. DAG size of input: 602 DAG size of output: 601 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 01:33:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 29986 backedges. 9072 proven. 19701 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2023-11-29 01:33:57,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:33:57,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788322276] [2023-11-29 01:33:57,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788322276] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:33:57,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:33:57,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [202, 202] total 402 [2023-11-29 01:33:57,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123861405] [2023-11-29 01:33:57,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:33:57,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2023-11-29 01:33:57,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:33:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2023-11-29 01:33:57,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40710, Invalid=120492, Unknown=0, NotChecked=0, Total=161202 [2023-11-29 01:33:57,546 INFO L87 Difference]: Start difference. First operand 1682 states and 2960 transitions. Second operand has 402 states, 400 states have (on average 1.3925) internal successors, (557), 402 states have internal predecessors, (557), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)