./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:05,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:05,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:34:05,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:05,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:05,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:05,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:05,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:05,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:05,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:05,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:05,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:05,927 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:05,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:05,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:34:05,931 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:05,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:05,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:05,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:05,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:34:05,933 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:34:05,934 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:34:05,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:05,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:34:05,936 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:34:05,936 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:05,937 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:05,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:05,938 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:05,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:05,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:05,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:05,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:05,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:05,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:05,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:05,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:34:05,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:05,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:05,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:05,943 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:05,943 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_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2023-11-19 07:34:06,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:06,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:06,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:06,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:06,331 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:06,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2023-11-19 07:34:09,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:09,863 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:09,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2023-11-19 07:34:09,899 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data/c51bfc0da/43c615850d5042188b99150d38327c51/FLAGb9c5ad202 [2023-11-19 07:34:09,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data/c51bfc0da/43c615850d5042188b99150d38327c51 [2023-11-19 07:34:09,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:09,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:09,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:09,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:09,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:09,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:09" (1/1) ... [2023-11-19 07:34:09,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d94d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:09, skipping insertion in model container [2023-11-19 07:34:09,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:09" (1/1) ... [2023-11-19 07:34:09,997 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:10,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:10,645 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) [2023-11-19 07:34:10,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5896f910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:10, skipping insertion in model container [2023-11-19 07:34:10,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:10,647 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:34:10,649 INFO L158 Benchmark]: Toolchain (without parser) took 726.25ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 80.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:34:10,650 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:34:10,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.02ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 80.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:34:10,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 724.02ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 80.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:13,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:13,275 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-19 07:34:13,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:13,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:13,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:13,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:13,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:13,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:13,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:13,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:13,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:13,340 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:13,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:13,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:34:13,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:13,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:13,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:13,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:13,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:34:13,347 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:34:13,347 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:34:13,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:13,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:34:13,349 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:34:13,350 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:34:13,350 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:34:13,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:13,351 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:13,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:13,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:13,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:13,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:13,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:13,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:13,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:13,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:13,356 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:34:13,356 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:34:13,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:13,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:13,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:13,359 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:34:13,359 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:13,360 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_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2023-11-19 07:34:13,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:13,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:13,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:13,847 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:13,848 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:13,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2023-11-19 07:34:17,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:17,567 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:17,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2023-11-19 07:34:17,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data/d2e72e935/a6414b2d8ca94effbfb07ad41d27b0c8/FLAGda7fb6432 [2023-11-19 07:34:17,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/data/d2e72e935/a6414b2d8ca94effbfb07ad41d27b0c8 [2023-11-19 07:34:17,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:17,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:17,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:17,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:17,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:17,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:17" (1/1) ... [2023-11-19 07:34:17,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167c4ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:17, skipping insertion in model container [2023-11-19 07:34:17,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:17" (1/1) ... [2023-11-19 07:34:17,719 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:18,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:18,435 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:34:18,451 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:18,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:18,563 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:18,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:18,746 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:18,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18 WrapperNode [2023-11-19 07:34:18,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:18,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:18,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:18,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:18,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,887 INFO L138 Inliner]: procedures = 180, calls = 187, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 628 [2023-11-19 07:34:18,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:18,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:18,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:18,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:18,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,964 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:18,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:18,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:18,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:18,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (1/1) ... [2023-11-19 07:34:18,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:19,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:19,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:19,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:34:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:34:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:34:19,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:34:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:34:19,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:34:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:34:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:34:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:34:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:34:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:34:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:34:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:34:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:19,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:19,267 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:19,270 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:25,464 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:25,475 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:25,475 INFO L302 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-19 07:34:25,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:25 BoogieIcfgContainer [2023-11-19 07:34:25,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:25,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:34:25,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:34:25,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:34:25,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:17" (1/3) ... [2023-11-19 07:34:25,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563c6c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:25, skipping insertion in model container [2023-11-19 07:34:25,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:18" (2/3) ... [2023-11-19 07:34:25,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563c6c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:25, skipping insertion in model container [2023-11-19 07:34:25,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:25" (3/3) ... [2023-11-19 07:34:25,492 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-1.i [2023-11-19 07:34:25,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:34:25,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:34:25,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:34:25,572 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;@5371d6f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:34:25,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:34:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 127 states have internal predecessors, (190), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:34:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:34:25,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:25,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:25,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:25,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:25,602 INFO L85 PathProgramCache]: Analyzing trace with hash 565740789, now seen corresponding path program 1 times [2023-11-19 07:34:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:25,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50650679] [2023-11-19 07:34:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:25,617 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 [2023-11-19 07:34:25,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:25,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:25,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:25,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:34:25,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:25,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:25,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:25,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:25,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50650679] [2023-11-19 07:34:25,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50650679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:25,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:25,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:25,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420617915] [2023-11-19 07:34:25,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:25,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:25,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:25,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:25,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:25,881 INFO L87 Difference]: Start difference. First operand has 133 states, 115 states have (on average 1.6521739130434783) internal successors, (190), 127 states have internal predecessors, (190), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:26,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:26,186 INFO L93 Difference]: Finished difference Result 221 states and 293 transitions. [2023-11-19 07:34:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:26,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:34:26,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:26,209 INFO L225 Difference]: With dead ends: 221 [2023-11-19 07:34:26,210 INFO L226 Difference]: Without dead ends: 219 [2023-11-19 07:34:26,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:26,216 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 108 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:26,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 347 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-19 07:34:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 131. [2023-11-19 07:34:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 114 states have (on average 1.3245614035087718) internal successors, (151), 125 states have internal predecessors, (151), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:34:26,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 177 transitions. [2023-11-19 07:34:26,298 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 177 transitions. Word has length 7 [2023-11-19 07:34:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:26,298 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 177 transitions. [2023-11-19 07:34:26,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 177 transitions. [2023-11-19 07:34:26,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:34:26,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:26,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:26,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:26,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:26,507 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:26,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1532611008, now seen corresponding path program 1 times [2023-11-19 07:34:26,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:26,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904087067] [2023-11-19 07:34:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:26,512 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 [2023-11-19 07:34:26,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:26,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:26,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:26,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:26,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:26,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:26,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:26,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904087067] [2023-11-19 07:34:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904087067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:26,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:26,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:26,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342599894] [2023-11-19 07:34:26,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:26,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:26,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:26,992 INFO L87 Difference]: Start difference. First operand 131 states and 177 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2023-11-19 07:34:27,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:27,164 INFO L93 Difference]: Finished difference Result 135 states and 173 transitions. [2023-11-19 07:34:27,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:27,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2023-11-19 07:34:27,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:27,169 INFO L225 Difference]: With dead ends: 135 [2023-11-19 07:34:27,170 INFO L226 Difference]: Without dead ends: 135 [2023-11-19 07:34:27,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:27,172 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 36 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:27,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 415 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:34:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-19 07:34:27,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2023-11-19 07:34:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 117 states have (on average 1.2478632478632479) internal successors, (146), 128 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:34:27,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2023-11-19 07:34:27,184 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 62 [2023-11-19 07:34:27,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:27,185 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2023-11-19 07:34:27,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2023-11-19 07:34:27,185 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2023-11-19 07:34:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:34:27,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:27,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:27,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:27,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:27,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:27,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:27,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1345094836, now seen corresponding path program 1 times [2023-11-19 07:34:27,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:27,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928797214] [2023-11-19 07:34:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:27,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:27,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:27,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:27,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:27,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:27,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:28,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:28,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:28,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:28,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928797214] [2023-11-19 07:34:28,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928797214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:28,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:28,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:34:28,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611754079] [2023-11-19 07:34:28,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:28,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:28,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:28,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:28,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:28,358 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-11-19 07:34:28,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:28,597 INFO L93 Difference]: Finished difference Result 176 states and 218 transitions. [2023-11-19 07:34:28,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:28,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2023-11-19 07:34:28,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:28,605 INFO L225 Difference]: With dead ends: 176 [2023-11-19 07:34:28,605 INFO L226 Difference]: Without dead ends: 176 [2023-11-19 07:34:28,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:28,607 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 11 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:28,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 312 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:28,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-19 07:34:28,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-11-19 07:34:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 159 states have (on average 1.2075471698113207) internal successors, (192), 170 states have internal predecessors, (192), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:34:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 218 transitions. [2023-11-19 07:34:28,621 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 218 transitions. Word has length 62 [2023-11-19 07:34:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:28,622 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 218 transitions. [2023-11-19 07:34:28,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-11-19 07:34:28,622 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 218 transitions. [2023-11-19 07:34:28,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-19 07:34:28,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:28,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:28,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:28,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:28,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:28,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:28,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1661563793, now seen corresponding path program 1 times [2023-11-19 07:34:28,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:28,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124272337] [2023-11-19 07:34:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:28,834 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 [2023-11-19 07:34:28,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:28,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:28,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:29,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:34:29,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:29,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:29,418 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:29,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:29,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124272337] [2023-11-19 07:34:29,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124272337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:29,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:29,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:29,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628620484] [2023-11-19 07:34:29,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:29,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:29,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:29,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:29,423 INFO L87 Difference]: Start difference. First operand 176 states and 218 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:29,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:29,489 INFO L93 Difference]: Finished difference Result 179 states and 222 transitions. [2023-11-19 07:34:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:34:29,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-19 07:34:29,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:29,492 INFO L225 Difference]: With dead ends: 179 [2023-11-19 07:34:29,492 INFO L226 Difference]: Without dead ends: 179 [2023-11-19 07:34:29,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:29,494 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 2 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:29,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 482 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:34:29,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-19 07:34:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-19 07:34:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 161 states have (on average 1.2111801242236024) internal successors, (195), 173 states have internal predecessors, (195), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:34:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 222 transitions. [2023-11-19 07:34:29,507 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 222 transitions. Word has length 77 [2023-11-19 07:34:29,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:29,508 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 222 transitions. [2023-11-19 07:34:29,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:34:29,508 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 222 transitions. [2023-11-19 07:34:29,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:34:29,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:29,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:29,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:29,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:29,718 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:29,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash -413060369, now seen corresponding path program 1 times [2023-11-19 07:34:29,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:29,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847941135] [2023-11-19 07:34:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:29,721 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 [2023-11-19 07:34:29,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:29,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:29,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:30,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:34:30,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:34:30,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:34:30,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:30,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847941135] [2023-11-19 07:34:30,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847941135] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:30,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:30,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:34:30,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094579704] [2023-11-19 07:34:30,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:30,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:34:30,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:30,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:34:30,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:34:30,503 INFO L87 Difference]: Start difference. First operand 179 states and 222 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:34:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:30,778 INFO L93 Difference]: Finished difference Result 190 states and 238 transitions. [2023-11-19 07:34:30,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:34:30,779 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 79 [2023-11-19 07:34:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:30,781 INFO L225 Difference]: With dead ends: 190 [2023-11-19 07:34:30,781 INFO L226 Difference]: Without dead ends: 190 [2023-11-19 07:34:30,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:34:30,783 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 9 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:30,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 487 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-19 07:34:30,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2023-11-19 07:34:30,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 169 states have (on average 1.2366863905325445) internal successors, (209), 181 states have internal predecessors, (209), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:34:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 236 transitions. [2023-11-19 07:34:30,794 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 236 transitions. Word has length 79 [2023-11-19 07:34:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:30,794 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 236 transitions. [2023-11-19 07:34:30,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:34:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 236 transitions. [2023-11-19 07:34:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 07:34:30,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:30,798 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:30,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:31,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:31,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:31,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:31,006 INFO L85 PathProgramCache]: Analyzing trace with hash 664329233, now seen corresponding path program 2 times [2023-11-19 07:34:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919205382] [2023-11-19 07:34:31,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:34:31,007 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 [2023-11-19 07:34:31,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:31,008 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:31,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:31,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:34:31,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:34:31,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:34:31,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:34:31,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:34:32,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:32,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919205382] [2023-11-19 07:34:32,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919205382] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:32,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:32,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:34:32,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839913909] [2023-11-19 07:34:32,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:32,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:34:32,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:32,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:34:32,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:34:32,091 INFO L87 Difference]: Start difference. First operand 188 states and 236 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:34:33,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:33,098 INFO L93 Difference]: Finished difference Result 209 states and 264 transitions. [2023-11-19 07:34:33,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:34:33,099 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 83 [2023-11-19 07:34:33,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:33,101 INFO L225 Difference]: With dead ends: 209 [2023-11-19 07:34:33,101 INFO L226 Difference]: Without dead ends: 205 [2023-11-19 07:34:33,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:34:33,103 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 18 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:33,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 984 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:34:33,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-19 07:34:33,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 197. [2023-11-19 07:34:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 178 states have (on average 1.2415730337078652) internal successors, (221), 190 states have internal predecessors, (221), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:34:33,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 248 transitions. [2023-11-19 07:34:33,117 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 248 transitions. Word has length 83 [2023-11-19 07:34:33,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:33,117 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 248 transitions. [2023-11-19 07:34:33,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:34:33,118 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 248 transitions. [2023-11-19 07:34:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:34:33,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:33,121 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:33,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:33,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:33,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:33,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1325039791, now seen corresponding path program 3 times [2023-11-19 07:34:33,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:33,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401680525] [2023-11-19 07:34:33,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:34:33,332 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 [2023-11-19 07:34:33,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:33,334 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:33,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:33,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 07:34:33,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:34:33,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:34:33,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2023-11-19 07:34:34,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:34:34,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:34,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401680525] [2023-11-19 07:34:34,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401680525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:34,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:34,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:34,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380351939] [2023-11-19 07:34:34,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:34,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:34:34,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:34,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:34:34,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:34:34,113 INFO L87 Difference]: Start difference. First operand 197 states and 248 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:36,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:34:38,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:34:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:41,173 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2023-11-19 07:34:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:41,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2023-11-19 07:34:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:41,177 INFO L225 Difference]: With dead ends: 221 [2023-11-19 07:34:41,177 INFO L226 Difference]: Without dead ends: 221 [2023-11-19 07:34:41,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:41,178 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 205 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:41,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 290 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 49 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2023-11-19 07:34:41,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-19 07:34:41,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2023-11-19 07:34:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 179 states have (on average 1.23463687150838) internal successors, (221), 191 states have internal predecessors, (221), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:34:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 248 transitions. [2023-11-19 07:34:41,192 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 248 transitions. Word has length 92 [2023-11-19 07:34:41,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:41,192 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 248 transitions. [2023-11-19 07:34:41,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:34:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 248 transitions. [2023-11-19 07:34:41,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 07:34:41,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:41,196 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:41,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:41,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:41,402 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:41,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1570500780, now seen corresponding path program 1 times [2023-11-19 07:34:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124801607] [2023-11-19 07:34:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:41,404 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 [2023-11-19 07:34:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:41,408 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:41,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:42,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:34:42,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:34:42,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 1 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:34:43,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:43,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124801607] [2023-11-19 07:34:43,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124801607] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:43,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:43,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-19 07:34:43,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733835796] [2023-11-19 07:34:43,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:43,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:34:43,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:43,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:34:43,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:34:43,485 INFO L87 Difference]: Start difference. First operand 198 states and 248 transitions. Second operand has 26 states, 26 states have (on average 4.0) internal successors, (104), 26 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:34:47,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:47,373 INFO L93 Difference]: Finished difference Result 240 states and 306 transitions. [2023-11-19 07:34:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-19 07:34:47,374 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.0) internal successors, (104), 26 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2023-11-19 07:34:47,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:47,377 INFO L225 Difference]: With dead ends: 240 [2023-11-19 07:34:47,377 INFO L226 Difference]: Without dead ends: 236 [2023-11-19 07:34:47,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-19 07:34:47,380 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 36 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:47,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2348 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 07:34:47,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-19 07:34:47,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 216. [2023-11-19 07:34:47,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 197 states have (on average 1.2436548223350254) internal successors, (245), 209 states have internal predecessors, (245), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:34:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 272 transitions. [2023-11-19 07:34:47,390 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 272 transitions. Word has length 96 [2023-11-19 07:34:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:47,391 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 272 transitions. [2023-11-19 07:34:47,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.0) internal successors, (104), 26 states have internal predecessors, (104), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:34:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 272 transitions. [2023-11-19 07:34:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 07:34:47,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:47,393 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:47,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:34:47,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:34:47,612 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:34:47,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1893651924, now seen corresponding path program 2 times [2023-11-19 07:34:47,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:34:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788675552] [2023-11-19 07:34:47,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:34:47,613 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 [2023-11-19 07:34:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:34:47,614 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:34:47,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0621c486-45db-452f-9db0-42a1cb34c7fe/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:34:48,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:34:48,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:34:48,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 07:34:48,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:34:49,350 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 07:34:49,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:34:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 1 proven. 531 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-19 07:34:52,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:34:52,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788675552] [2023-11-19 07:34:52,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788675552] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:34:52,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:34:52,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-19 07:34:52,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599796700] [2023-11-19 07:34:52,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:34:52,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-19 07:34:52,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:34:52,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-19 07:34:52,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-19 07:34:52,866 INFO L87 Difference]: Start difference. First operand 216 states and 272 transitions. Second operand has 50 states, 50 states have (on average 2.56) internal successors, (128), 50 states have internal predecessors, (128), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)