./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.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_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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 b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:26:48,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:26:48,910 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-29 04:26:48,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:26:48,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:26:48,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:26:48,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:26:48,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:26:48,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:26:48,941 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:26:48,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:26:48,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:26:48,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:26:48,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:26:48,944 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:26:48,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:26:48,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:26:48,946 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:26:48,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:26:48,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:26:48,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:26:48,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:26:48,948 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:26:48,949 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:26:48,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:26:48,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:26:48,950 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:26:48,950 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:26:48,951 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:26:48,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:26:48,951 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:26:48,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:26:48,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:26:48,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:26:48,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:26:48,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:48,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:26:48,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:26:48,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:26:48,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:26:48,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:26:48,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:26:48,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:26:48,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:26:48,955 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_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2023-11-29 04:26:49,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:26:49,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:26:49,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:26:49,200 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:26:49,200 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:26:49,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2023-11-29 04:26:51,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:26:52,208 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:26:52,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2023-11-29 04:26:52,226 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data/37aff1ebf/246e892546804c90878919abc5af6e77/FLAG35779158f [2023-11-29 04:26:52,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data/37aff1ebf/246e892546804c90878919abc5af6e77 [2023-11-29 04:26:52,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:26:52,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:26:52,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:52,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:26:52,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:26:52,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:52" (1/1) ... [2023-11-29 04:26:52,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4923362d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:52, skipping insertion in model container [2023-11-29 04:26:52,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:52" (1/1) ... [2023-11-29 04:26:52,316 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:26:52,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:52,831 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-29 04:26:52,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f7fb04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:52, skipping insertion in model container [2023-11-29 04:26:52,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:52,832 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 04:26:52,834 INFO L158 Benchmark]: Toolchain (without parser) took 588.58ms. Allocated memory is still 144.7MB. Free memory was 109.7MB in the beginning and 88.9MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,835 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 144.7MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:26:52,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.17ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 88.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-29 04:26:52,837 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 144.7MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.17ms. Allocated memory is still 144.7MB. Free memory was 109.2MB in the beginning and 88.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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 b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:26:54,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:26:54,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-29 04:26:54,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:26:54,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:26:54,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:26:54,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:26:54,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:26:54,671 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:26:54,672 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:26:54,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:26:54,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:26:54,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:26:54,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:26:54,675 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:26:54,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:26:54,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:26:54,676 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:26:54,677 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:26:54,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:26:54,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:26:54,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:26:54,679 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 04:26:54,679 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 04:26:54,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:26:54,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:26:54,681 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 04:26:54,681 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 04:26:54,681 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 04:26:54,682 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:26:54,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:26:54,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:26:54,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:26:54,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:26:54,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:26:54,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:26:54,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:26:54,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:54,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:26:54,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:26:54,685 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 04:26:54,685 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 04:26:54,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:26:54,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:26:54,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:26:54,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:26:54,686 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 04:26:54,694 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_c9da9b71-42fb-4936-9bf0-8c419aae7d14/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2023-11-29 04:26:54,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:26:55,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:26:55,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:26:55,018 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:26:55,019 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:26:55,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2023-11-29 04:26:57,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:26:58,057 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:26:58,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2023-11-29 04:26:58,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data/68aac74f4/c471c67e61834ded8e81f853f55c490b/FLAG063425895 [2023-11-29 04:26:58,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/data/68aac74f4/c471c67e61834ded8e81f853f55c490b [2023-11-29 04:26:58,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:26:58,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:26:58,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:58,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:26:58,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:26:58,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4712f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58, skipping insertion in model container [2023-11-29 04:26:58,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,173 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:26:58,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:58,710 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 04:26:58,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:26:58,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:58,802 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:26:58,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:26:58,902 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:26:58,910 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:26:58,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58 WrapperNode [2023-11-29 04:26:58,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:26:58,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:26:58,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:26:58,912 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:26:58,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:58,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,012 INFO L138 Inliner]: procedures = 180, calls = 350, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1160 [2023-11-29 04:26:59,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:26:59,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:26:59,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:26:59,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:26:59,025 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,038 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,165 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [2, 268, 34, 5]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 58, 4, 1]. [2023-11-29 04:26:59,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:26:59,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:26:59,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:26:59,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:26:59,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (1/1) ... [2023-11-29 04:26:59,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:26:59,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:59,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:26:59,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:26:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 04:26:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 04:26:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 04:26:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 04:26:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 04:26:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 04:26:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 04:26:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 04:26:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 04:26:59,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 04:26:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:26:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:26:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 04:26:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 04:26:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 04:26:59,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 04:26:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 04:26:59,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 04:26:59,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 04:26:59,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 04:26:59,307 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-29 04:26:59,307 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-29 04:26:59,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:26:59,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:26:59,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:26:59,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 04:26:59,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 04:26:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 04:26:59,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:26:59,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:26:59,541 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:26:59,544 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:27:09,009 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:27:09,049 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:27:09,049 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-11-29 04:27:09,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:27:09 BoogieIcfgContainer [2023-11-29 04:27:09,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:27:09,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:27:09,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:27:09,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:27:09,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:26:58" (1/3) ... [2023-11-29 04:27:09,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e53960e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:27:09, skipping insertion in model container [2023-11-29 04:27:09,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:26:58" (2/3) ... [2023-11-29 04:27:09,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e53960e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:27:09, skipping insertion in model container [2023-11-29 04:27:09,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:27:09" (3/3) ... [2023-11-29 04:27:09,059 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-2.i [2023-11-29 04:27:09,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:27:09,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:27:09,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:27:09,136 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;@45a9b8bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:27:09,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:27:09,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 233 states have (on average 1.6824034334763949) internal successors, (392), 252 states have internal predecessors, (392), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:27:09,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 04:27:09,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:09,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:09,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:09,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:09,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1422517794, now seen corresponding path program 1 times [2023-11-29 04:27:09,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:09,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026384433] [2023-11-29 04:27:09,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:09,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:09,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:09,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:09,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 04:27:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:09,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:27:09,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:09,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:09,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:09,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026384433] [2023-11-29 04:27:09,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026384433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:09,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:09,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:09,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393684144] [2023-11-29 04:27:09,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:09,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:27:09,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:27:09,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:27:09,498 INFO L87 Difference]: Start difference. First operand has 262 states, 233 states have (on average 1.6824034334763949) internal successors, (392), 252 states have internal predecessors, (392), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:09,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:09,563 INFO L93 Difference]: Finished difference Result 260 states and 356 transitions. [2023-11-29 04:27:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:27:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 04:27:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:09,579 INFO L225 Difference]: With dead ends: 260 [2023-11-29 04:27:09,579 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 04:27:09,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:27:09,584 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:09,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:09,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 04:27:09,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2023-11-29 04:27:09,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 232 states have (on average 1.3491379310344827) internal successors, (313), 249 states have internal predecessors, (313), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:27:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 355 transitions. [2023-11-29 04:27:09,644 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 355 transitions. Word has length 10 [2023-11-29 04:27:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:09,644 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 355 transitions. [2023-11-29 04:27:09,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 355 transitions. [2023-11-29 04:27:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 04:27:09,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:09,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:09,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:09,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:09,847 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:09,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash -135441944, now seen corresponding path program 1 times [2023-11-29 04:27:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121259175] [2023-11-29 04:27:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:09,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:09,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:09,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:09,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 04:27:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:10,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:27:10,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:10,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:10,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:10,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:10,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121259175] [2023-11-29 04:27:10,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121259175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:10,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:10,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:10,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501621056] [2023-11-29 04:27:10,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:10,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:10,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:10,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:10,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:10,087 INFO L87 Difference]: Start difference. First operand 259 states and 355 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 04:27:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:11,305 INFO L93 Difference]: Finished difference Result 403 states and 544 transitions. [2023-11-29 04:27:11,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:11,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2023-11-29 04:27:11,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:11,314 INFO L225 Difference]: With dead ends: 403 [2023-11-29 04:27:11,314 INFO L226 Difference]: Without dead ends: 403 [2023-11-29 04:27:11,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 04:27:11,316 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 182 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:11,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 638 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:27:11,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-29 04:27:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 371. [2023-11-29 04:27:11,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 343 states have (on average 1.338192419825073) internal successors, (459), 360 states have internal predecessors, (459), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:27:11,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 503 transitions. [2023-11-29 04:27:11,347 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 503 transitions. Word has length 12 [2023-11-29 04:27:11,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:11,347 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 503 transitions. [2023-11-29 04:27:11,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 04:27:11,348 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 503 transitions. [2023-11-29 04:27:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 04:27:11,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:11,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:11,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 04:27:11,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:11,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:11,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:11,550 INFO L85 PathProgramCache]: Analyzing trace with hash -133594902, now seen corresponding path program 1 times [2023-11-29 04:27:11,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:11,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155325950] [2023-11-29 04:27:11,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:11,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:11,575 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:11,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 04:27:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:11,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:27:11,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:11,787 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:27:11,788 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:27:11,788 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 04:27:11,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-29 04:27:11,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:27:11,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-29 04:27:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:11,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:11,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:11,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155325950] [2023-11-29 04:27:11,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155325950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:11,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:11,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:27:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418620714] [2023-11-29 04:27:11,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:11,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:27:11,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:27:11,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:27:11,898 INFO L87 Difference]: Start difference. First operand 371 states and 503 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:27:12,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:12,483 INFO L93 Difference]: Finished difference Result 567 states and 763 transitions. [2023-11-29 04:27:12,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:27:12,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2023-11-29 04:27:12,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:12,486 INFO L225 Difference]: With dead ends: 567 [2023-11-29 04:27:12,487 INFO L226 Difference]: Without dead ends: 567 [2023-11-29 04:27:12,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:27:12,488 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 262 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:12,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 986 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:27:12,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-11-29 04:27:12,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 370. [2023-11-29 04:27:12,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.3362573099415205) internal successors, (457), 359 states have internal predecessors, (457), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:27:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 501 transitions. [2023-11-29 04:27:12,508 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 501 transitions. Word has length 12 [2023-11-29 04:27:12,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:12,508 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 501 transitions. [2023-11-29 04:27:12,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:27:12,508 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 501 transitions. [2023-11-29 04:27:12,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 04:27:12,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:12,512 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:27:12,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 04:27:12,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:12,716 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:12,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash 796640711, now seen corresponding path program 1 times [2023-11-29 04:27:12,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:12,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879530942] [2023-11-29 04:27:12,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:12,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:12,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:12,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:12,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 04:27:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:13,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:27:13,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:13,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:27:13,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:13,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:13,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879530942] [2023-11-29 04:27:13,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879530942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:13,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:13,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:27:13,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983982164] [2023-11-29 04:27:13,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:13,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:27:13,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:13,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:27:13,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:27:13,223 INFO L87 Difference]: Start difference. First operand 370 states and 501 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:27:13,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:13,385 INFO L93 Difference]: Finished difference Result 378 states and 493 transitions. [2023-11-29 04:27:13,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:27:13,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 79 [2023-11-29 04:27:13,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:13,389 INFO L225 Difference]: With dead ends: 378 [2023-11-29 04:27:13,389 INFO L226 Difference]: Without dead ends: 378 [2023-11-29 04:27:13,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:27:13,390 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 36 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:13,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 939 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-29 04:27:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2023-11-29 04:27:13,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 348 states have (on average 1.2844827586206897) internal successors, (447), 365 states have internal predecessors, (447), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:27:13,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 491 transitions. [2023-11-29 04:27:13,406 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 491 transitions. Word has length 79 [2023-11-29 04:27:13,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:13,406 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 491 transitions. [2023-11-29 04:27:13,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 04:27:13,407 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 491 transitions. [2023-11-29 04:27:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 04:27:13,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:13,409 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 04:27:13,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 04:27:13,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:13,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:13,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1841311405, now seen corresponding path program 1 times [2023-11-29 04:27:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:13,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858452058] [2023-11-29 04:27:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:13,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:13,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:13,618 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:13,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 04:27:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:14,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:27:14,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:14,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:14,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:14,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858452058] [2023-11-29 04:27:14,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858452058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:14,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:14,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:27:14,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019112118] [2023-11-29 04:27:14,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:14,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:27:14,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:14,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:27:14,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:27:14,156 INFO L87 Difference]: Start difference. First operand 376 states and 491 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:14,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:14,248 INFO L93 Difference]: Finished difference Result 378 states and 494 transitions. [2023-11-29 04:27:14,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:27:14,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 79 [2023-11-29 04:27:14,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:14,252 INFO L225 Difference]: With dead ends: 378 [2023-11-29 04:27:14,252 INFO L226 Difference]: Without dead ends: 378 [2023-11-29 04:27:14,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:27:14,253 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 1 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:14,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1007 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:14,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-29 04:27:14,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2023-11-29 04:27:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 349 states have (on average 1.2865329512893984) internal successors, (449), 367 states have internal predecessors, (449), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 494 transitions. [2023-11-29 04:27:14,268 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 494 transitions. Word has length 79 [2023-11-29 04:27:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:14,268 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 494 transitions. [2023-11-29 04:27:14,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 494 transitions. [2023-11-29 04:27:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 04:27:14,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:14,270 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, 1, 1, 1, 1] [2023-11-29 04:27:14,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 04:27:14,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:14,478 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:14,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:14,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1971458763, now seen corresponding path program 1 times [2023-11-29 04:27:14,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:14,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211336792] [2023-11-29 04:27:14,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:14,479 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:14,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:14,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:14,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 04:27:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:14,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:27:14,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 04:27:15,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 04:27:15,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:15,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211336792] [2023-11-29 04:27:15,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211336792] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:15,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:15,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:27:15,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140589703] [2023-11-29 04:27:15,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:15,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:27:15,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:27:15,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:27:15,106 INFO L87 Difference]: Start difference. First operand 378 states and 494 transitions. Second operand has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:15,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:15,428 INFO L93 Difference]: Finished difference Result 387 states and 508 transitions. [2023-11-29 04:27:15,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:27:15,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 81 [2023-11-29 04:27:15,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:15,432 INFO L225 Difference]: With dead ends: 387 [2023-11-29 04:27:15,432 INFO L226 Difference]: Without dead ends: 387 [2023-11-29 04:27:15,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 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 04:27:15,433 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 6 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:15,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1672 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:27:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-11-29 04:27:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 386. [2023-11-29 04:27:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 356 states have (on average 1.297752808988764) internal successors, (462), 374 states have internal predecessors, (462), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 507 transitions. [2023-11-29 04:27:15,447 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 507 transitions. Word has length 81 [2023-11-29 04:27:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:15,447 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 507 transitions. [2023-11-29 04:27:15,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.333333333333334) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:15,447 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 507 transitions. [2023-11-29 04:27:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 04:27:15,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:15,449 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-29 04:27:15,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 04:27:15,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:15,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:15,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:15,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1552033485, now seen corresponding path program 2 times [2023-11-29 04:27:15,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:15,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131753738] [2023-11-29 04:27:15,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:27:15,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:15,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:15,657 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:15,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 04:27:16,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:27:16,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:16,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:27:16,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:16,782 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 04:27:16,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 04:27:16,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:16,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131753738] [2023-11-29 04:27:16,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131753738] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:16,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:16,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 04:27:16,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440963909] [2023-11-29 04:27:16,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:16,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:27:16,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:16,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:27:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:27:16,907 INFO L87 Difference]: Start difference. First operand 386 states and 507 transitions. Second operand has 10 states, 8 states have (on average 9.875) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:27:17,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:17,330 INFO L93 Difference]: Finished difference Result 393 states and 518 transitions. [2023-11-29 04:27:17,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:27:17,331 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.875) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 85 [2023-11-29 04:27:17,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:17,334 INFO L225 Difference]: With dead ends: 393 [2023-11-29 04:27:17,334 INFO L226 Difference]: Without dead ends: 393 [2023-11-29 04:27:17,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:27:17,335 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 12 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:17,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2003 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:27:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-29 04:27:17,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 390. [2023-11-29 04:27:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 360 states have (on average 1.3055555555555556) internal successors, (470), 378 states have internal predecessors, (470), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 515 transitions. [2023-11-29 04:27:17,348 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 515 transitions. Word has length 85 [2023-11-29 04:27:17,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:17,348 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 515 transitions. [2023-11-29 04:27:17,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.875) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:27:17,349 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 515 transitions. [2023-11-29 04:27:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 04:27:17,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:17,350 INFO L195 NwaCegarLoop]: trace histogram [10, 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] [2023-11-29 04:27:17,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 04:27:17,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:17,551 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:17,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:17,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1359412877, now seen corresponding path program 3 times [2023-11-29 04:27:17,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:17,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825655114] [2023-11-29 04:27:17,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:27:17,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:17,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:17,553 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:17,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 04:27:19,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:27:19,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:19,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:27:19,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 04:27:19,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 04:27:19,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:19,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825655114] [2023-11-29 04:27:19,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825655114] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:19,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:19,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-11-29 04:27:19,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073971601] [2023-11-29 04:27:19,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:19,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:27:19,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:19,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:27:19,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:27:19,852 INFO L87 Difference]: Start difference. First operand 390 states and 515 transitions. Second operand has 18 states, 16 states have (on average 5.4375) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:27:21,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:21,021 INFO L93 Difference]: Finished difference Result 411 states and 545 transitions. [2023-11-29 04:27:21,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 04:27:21,021 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.4375) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2023-11-29 04:27:21,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:21,024 INFO L225 Difference]: With dead ends: 411 [2023-11-29 04:27:21,024 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 04:27:21,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=369, Invalid=687, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 04:27:21,025 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 24 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:21,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2991 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:27:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 04:27:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2023-11-29 04:27:21,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 371 states have (on average 1.320754716981132) internal successors, (490), 389 states have internal predecessors, (490), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 535 transitions. [2023-11-29 04:27:21,036 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 535 transitions. Word has length 89 [2023-11-29 04:27:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:21,036 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 535 transitions. [2023-11-29 04:27:21,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.4375) internal successors, (87), 18 states have internal predecessors, (87), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:27:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 535 transitions. [2023-11-29 04:27:21,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 04:27:21,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:21,038 INFO L195 NwaCegarLoop]: trace histogram [18, 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] [2023-11-29 04:27:21,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 04:27:21,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:21,242 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:21,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:21,243 INFO L85 PathProgramCache]: Analyzing trace with hash -552275469, now seen corresponding path program 4 times [2023-11-29 04:27:21,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:21,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908579278] [2023-11-29 04:27:21,243 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:27:21,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:21,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:21,244 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:21,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 04:27:21,713 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:27:21,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:21,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:27:21,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 77 proven. 10 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:27:21,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 04:27:22,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:22,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908579278] [2023-11-29 04:27:22,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908579278] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:22,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:22,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:27:22,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887543230] [2023-11-29 04:27:22,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:22,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:27:22,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:22,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:27:22,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:27:22,023 INFO L87 Difference]: Start difference. First operand 401 states and 535 transitions. Second operand has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:22,782 INFO L93 Difference]: Finished difference Result 411 states and 546 transitions. [2023-11-29 04:27:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:27:22,783 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2023-11-29 04:27:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:22,785 INFO L225 Difference]: With dead ends: 411 [2023-11-29 04:27:22,785 INFO L226 Difference]: Without dead ends: 409 [2023-11-29 04:27:22,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:27:22,786 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 13 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:22,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2010 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:27:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-29 04:27:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 404. [2023-11-29 04:27:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 374 states have (on average 1.3128342245989304) internal successors, (491), 392 states have internal predecessors, (491), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 536 transitions. [2023-11-29 04:27:22,797 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 536 transitions. Word has length 97 [2023-11-29 04:27:22,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:22,798 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 536 transitions. [2023-11-29 04:27:22,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 536 transitions. [2023-11-29 04:27:22,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:27:22,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:22,800 INFO L195 NwaCegarLoop]: trace histogram [24, 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] [2023-11-29 04:27:22,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 04:27:23,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:23,001 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:23,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash 667079059, now seen corresponding path program 5 times [2023-11-29 04:27:23,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:23,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406566176] [2023-11-29 04:27:23,002 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:27:23,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:23,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:23,003 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:23,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 04:27:23,941 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-11-29 04:27:23,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:23,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:27:23,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 167 proven. 55 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:27:24,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 04:27:24,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:24,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406566176] [2023-11-29 04:27:24,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406566176] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:24,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:24,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-29 04:27:24,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211395774] [2023-11-29 04:27:24,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:24,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 04:27:24,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:24,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 04:27:24,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:27:24,689 INFO L87 Difference]: Start difference. First operand 404 states and 536 transitions. Second operand has 26 states, 24 states have (on average 4.083333333333333) internal successors, (98), 26 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:27,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:27,310 INFO L93 Difference]: Finished difference Result 428 states and 570 transitions. [2023-11-29 04:27:27,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 04:27:27,312 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 4.083333333333333) internal successors, (98), 26 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2023-11-29 04:27:27,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:27,314 INFO L225 Difference]: With dead ends: 428 [2023-11-29 04:27:27,314 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 04:27:27,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=998, Invalid=2194, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 04:27:27,316 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 24 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:27,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4679 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:27:27,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 04:27:27,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 416. [2023-11-29 04:27:27,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 386 states have (on average 1.3031088082901554) internal successors, (503), 404 states have internal predecessors, (503), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:27,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 548 transitions. [2023-11-29 04:27:27,328 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 548 transitions. Word has length 103 [2023-11-29 04:27:27,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:27,328 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 548 transitions. [2023-11-29 04:27:27,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 4.083333333333333) internal successors, (98), 26 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 548 transitions. [2023-11-29 04:27:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 04:27:27,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:27,330 INFO L195 NwaCegarLoop]: trace histogram [36, 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] [2023-11-29 04:27:27,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-29 04:27:27,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:27,531 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:27,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash -101848877, now seen corresponding path program 6 times [2023-11-29 04:27:27,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:27,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685317054] [2023-11-29 04:27:27,532 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:27:27,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:27,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:27,533 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:27,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 04:27:31,813 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2023-11-29 04:27:31,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:31,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 04:27:31,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 347 proven. 253 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:27:32,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 599 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 04:27:34,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:34,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685317054] [2023-11-29 04:27:34,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685317054] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:34,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:34,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-29 04:27:34,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724913433] [2023-11-29 04:27:34,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:34,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-29 04:27:34,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-29 04:27:34,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-29 04:27:34,694 INFO L87 Difference]: Start difference. First operand 416 states and 548 transitions. Second operand has 50 states, 48 states have (on average 2.5416666666666665) internal successors, (122), 50 states have internal predecessors, (122), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:45,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:45,370 INFO L93 Difference]: Finished difference Result 472 states and 642 transitions. [2023-11-29 04:27:45,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-11-29 04:27:45,371 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.5416666666666665) internal successors, (122), 50 states have internal predecessors, (122), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 115 [2023-11-29 04:27:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:45,374 INFO L225 Difference]: With dead ends: 472 [2023-11-29 04:27:45,374 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 04:27:45,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2906, Invalid=6214, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 04:27:45,377 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 49 mSDsluCounter, 7660 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 7996 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:45,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 7996 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 04:27:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 04:27:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 449. [2023-11-29 04:27:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 419 states have (on average 1.3007159904534606) internal successors, (545), 437 states have internal predecessors, (545), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:45,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 590 transitions. [2023-11-29 04:27:45,392 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 590 transitions. Word has length 115 [2023-11-29 04:27:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:45,392 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 590 transitions. [2023-11-29 04:27:45,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.5416666666666665) internal successors, (122), 50 states have internal predecessors, (122), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:27:45,392 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 590 transitions. [2023-11-29 04:27:45,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 04:27:45,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:45,394 INFO L195 NwaCegarLoop]: trace histogram [58, 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] [2023-11-29 04:27:45,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 04:27:45,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:45,595 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:45,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1547026291, now seen corresponding path program 7 times [2023-11-29 04:27:45,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:45,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537986603] [2023-11-29 04:27:45,596 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 04:27:45,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:45,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:45,597 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:45,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 04:27:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:46,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:27:46,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:46,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1772 backedges. 676 proven. 105 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:27:46,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:47,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1772 backedges. 676 proven. 105 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:27:47,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:47,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537986603] [2023-11-29 04:27:47,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537986603] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:47,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:47,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-11-29 04:27:47,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579702675] [2023-11-29 04:27:47,558 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:47,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 04:27:47,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:47,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 04:27:47,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 04:27:47,560 INFO L87 Difference]: Start difference. First operand 449 states and 590 transitions. Second operand has 34 states, 32 states have (on average 3.21875) internal successors, (103), 34 states have internal predecessors, (103), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:27:51,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:51,098 INFO L93 Difference]: Finished difference Result 470 states and 618 transitions. [2023-11-29 04:27:51,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-11-29 04:27:51,099 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 3.21875) internal successors, (103), 34 states have internal predecessors, (103), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 137 [2023-11-29 04:27:51,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:51,101 INFO L225 Difference]: With dead ends: 470 [2023-11-29 04:27:51,101 INFO L226 Difference]: Without dead ends: 470 [2023-11-29 04:27:51,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1782, Invalid=4070, Unknown=0, NotChecked=0, Total=5852 [2023-11-29 04:27:51,104 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 36 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 5667 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:51,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 5667 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:27:51,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-29 04:27:51,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 456. [2023-11-29 04:27:51,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 426 states have (on average 1.312206572769953) internal successors, (559), 444 states have internal predecessors, (559), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:27:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 604 transitions. [2023-11-29 04:27:51,118 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 604 transitions. Word has length 137 [2023-11-29 04:27:51,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:51,118 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 604 transitions. [2023-11-29 04:27:51,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 3.21875) internal successors, (103), 34 states have internal predecessors, (103), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:27:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 604 transitions. [2023-11-29 04:27:51,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 04:27:51,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:51,120 INFO L195 NwaCegarLoop]: trace histogram [74, 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] [2023-11-29 04:27:51,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 04:27:51,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:51,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:27:51,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:51,322 INFO L85 PathProgramCache]: Analyzing trace with hash -696704909, now seen corresponding path program 8 times [2023-11-29 04:27:51,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:27:51,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508975998] [2023-11-29 04:27:51,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:27:51,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:27:51,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:27:51,324 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:27:51,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 04:27:53,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:27:53,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:53,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 1266 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 04:27:53,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:54,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1396 proven. 465 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:27:54,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:57,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 1396 proven. 465 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:27:57,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:27:57,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508975998] [2023-11-29 04:27:57,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508975998] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:57,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:57,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 66 [2023-11-29 04:27:57,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091748412] [2023-11-29 04:27:57,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:57,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-29 04:27:57,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:27:57,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-29 04:27:57,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=3137, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 04:27:57,111 INFO L87 Difference]: Start difference. First operand 456 states and 604 transitions. Second operand has 66 states, 64 states have (on average 2.109375) internal successors, (135), 66 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:28:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:13,740 INFO L93 Difference]: Finished difference Result 517 states and 697 transitions. [2023-11-29 04:28:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-11-29 04:28:13,741 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 64 states have (on average 2.109375) internal successors, (135), 66 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2023-11-29 04:28:13,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:13,743 INFO L225 Difference]: With dead ends: 517 [2023-11-29 04:28:13,743 INFO L226 Difference]: Without dead ends: 517 [2023-11-29 04:28:13,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5774 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=7091, Invalid=17089, Unknown=0, NotChecked=0, Total=24180 [2023-11-29 04:28:13,750 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 67 mSDsluCounter, 10325 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 10661 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:13,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 10661 Invalid, 3229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 04:28:13,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-29 04:28:13,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 488. [2023-11-29 04:28:13,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 458 states have (on average 1.3602620087336244) internal successors, (623), 476 states have internal predecessors, (623), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:28:13,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 668 transitions. [2023-11-29 04:28:13,760 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 668 transitions. Word has length 153 [2023-11-29 04:28:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:13,760 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 668 transitions. [2023-11-29 04:28:13,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 64 states have (on average 2.109375) internal successors, (135), 66 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:28:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 668 transitions. [2023-11-29 04:28:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 04:28:13,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:13,762 INFO L195 NwaCegarLoop]: trace histogram [106, 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] [2023-11-29 04:28:13,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 04:28:13,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:28:13,963 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:28:13,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:13,963 INFO L85 PathProgramCache]: Analyzing trace with hash 878305907, now seen corresponding path program 9 times [2023-11-29 04:28:13,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:28:13,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768120634] [2023-11-29 04:28:13,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:28:13,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:28:13,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:28:13,965 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:28:13,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 04:29:46,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2023-11-29 04:29:46,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:29:46,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-29 04:29:46,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5780 backedges. 2836 proven. 1953 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:29:49,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5780 backedges. 2836 proven. 1953 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:30:04,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:30:04,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768120634] [2023-11-29 04:30:04,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768120634] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:30:04,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:30:04,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 130 [2023-11-29 04:30:04,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621643248] [2023-11-29 04:30:04,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:04,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-29 04:30:04,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:30:04,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-29 04:30:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4353, Invalid=12417, Unknown=0, NotChecked=0, Total=16770 [2023-11-29 04:30:04,334 INFO L87 Difference]: Start difference. First operand 488 states and 668 transitions. Second operand has 130 states, 128 states have (on average 1.5546875) internal successors, (199), 130 states have internal predecessors, (199), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:31:54,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:31:54,656 INFO L93 Difference]: Finished difference Result 648 states and 907 transitions. [2023-11-29 04:31:54,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2023-11-29 04:31:54,658 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 128 states have (on average 1.5546875) internal successors, (199), 130 states have internal predecessors, (199), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 185 [2023-11-29 04:31:54,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:31:54,662 INFO L225 Difference]: With dead ends: 648 [2023-11-29 04:31:54,662 INFO L226 Difference]: Without dead ends: 646 [2023-11-29 04:31:54,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12032 ImplicationChecksByTransitivity, 99.1s TimeCoverageRelationStatistics Valid=20865, Invalid=44927, Unknown=0, NotChecked=0, Total=65792 [2023-11-29 04:31:54,671 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 148 mSDsluCounter, 21583 mSDsCounter, 0 mSdLazyCounter, 13666 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 21918 SdHoareTripleChecker+Invalid, 13760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 13666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:31:54,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 21918 Invalid, 13760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 13666 Invalid, 0 Unknown, 0 Unchecked, 25.6s Time] [2023-11-29 04:31:54,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-29 04:31:54,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 569. [2023-11-29 04:31:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 539 states have (on average 1.4526901669758812) internal successors, (783), 557 states have internal predecessors, (783), 23 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2023-11-29 04:31:54,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 828 transitions. [2023-11-29 04:31:54,689 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 828 transitions. Word has length 185 [2023-11-29 04:31:54,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:31:54,689 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 828 transitions. [2023-11-29 04:31:54,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 128 states have (on average 1.5546875) internal successors, (199), 130 states have internal predecessors, (199), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:31:54,690 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 828 transitions. [2023-11-29 04:31:54,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-29 04:31:54,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:31:54,692 INFO L195 NwaCegarLoop]: trace histogram [170, 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] [2023-11-29 04:31:54,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-29 04:31:54,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:31:54,893 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-29 04:31:54,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:31:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash 92497523, now seen corresponding path program 10 times [2023-11-29 04:31:54,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 04:31:54,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500574300] [2023-11-29 04:31:54,895 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:31:54,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 04:31:54,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 04:31:54,896 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 04:31:54,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9da9b71-42fb-4936-9bf0-8c419aae7d14/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 04:31:57,233 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:31:57,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:31:57,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 2322 conjuncts, 129 conjunts are in the unsatisfiable core [2023-11-29 04:31:57,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 14708 backedges. 5716 proven. 8001 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:32:08,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:17,411 WARN L293 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 386 DAG size of output: 385 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 04:33:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 14708 backedges. 5716 proven. 8001 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-11-29 04:33:07,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 04:33:07,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500574300] [2023-11-29 04:33:07,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500574300] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:33:07,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:33:07,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130] total 258 [2023-11-29 04:33:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487633530] [2023-11-29 04:33:07,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:33:07,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2023-11-29 04:33:07,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 04:33:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2023-11-29 04:33:07,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16897, Invalid=49409, Unknown=0, NotChecked=0, Total=66306 [2023-11-29 04:33:07,719 INFO L87 Difference]: Start difference. First operand 569 states and 828 transitions. Second operand has 258 states, 256 states have (on average 1.27734375) internal successors, (327), 258 states have internal predecessors, (327), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)