./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme --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 bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:43,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:44,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-26 12:04:44,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:44,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:44,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:44,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:44,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:44,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:44,059 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:44,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:44,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:44,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:44,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:44,062 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:44,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:44,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:04:44,064 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:44,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:44,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:44,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:44,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:04:44,067 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:04:44,068 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:04:44,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:44,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:04:44,070 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:04:44,070 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:44,071 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:44,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:44,072 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:44,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:44,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:44,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:44,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:44,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:44,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:44,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:44,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:44,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:04:44,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:44,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:44,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:44,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:44,078 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_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e [2023-11-26 12:04:44,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:44,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:44,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:44,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:44,447 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:44,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2023-11-26 12:04:47,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:47,955 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:47,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2023-11-26 12:04:47,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data/6f7044ee8/f12ba14452484f2c9ae158f18be54e6e/FLAG64fc0bbc0 [2023-11-26 12:04:47,993 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data/6f7044ee8/f12ba14452484f2c9ae158f18be54e6e [2023-11-26 12:04:47,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:47,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:47,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:47,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:48,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:48,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:47" (1/1) ... [2023-11-26 12:04:48,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402048d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:48, skipping insertion in model container [2023-11-26 12:04:48,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:47" (1/1) ... [2023-11-26 12:04:48,081 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:48,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:48,802 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) [2023-11-26 12:04:48,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3940747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:48, skipping insertion in model container [2023-11-26 12:04:48,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:48,804 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 12:04:48,806 INFO L158 Benchmark]: Toolchain (without parser) took 808.04ms. Allocated memory is still 169.9MB. Free memory was 138.7MB in the beginning and 116.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,807 INFO L158 Benchmark]: CDTParser took 1.06ms. Allocated memory is still 121.6MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:48,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.53ms. Allocated memory is still 169.9MB. Free memory was 138.7MB in the beginning and 116.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 12:04:48,810 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06ms. Allocated memory is still 121.6MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.53ms. Allocated memory is still 169.9MB. Free memory was 138.7MB in the beginning and 116.8MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: 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_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme --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 bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:51,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:51,412 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-26 12:04:51,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:51,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:51,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:51,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:51,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:51,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:51,452 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:51,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:51,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:51,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:51,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:51,456 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:51,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:51,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:04:51,458 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:51,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:51,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:51,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:51,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:04:51,461 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:04:51,462 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:04:51,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:51,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:04:51,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:04:51,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:04:51,465 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:04:51,465 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:51,466 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:51,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:51,467 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:51,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:51,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:51,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:51,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:51,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:51,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:51,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:51,471 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:04:51,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:04:51,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:51,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:51,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:51,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:51,473 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:04:51,473 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_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e [2023-11-26 12:04:51,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:51,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:51,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:51,972 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:51,973 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:51,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2023-11-26 12:04:55,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:55,421 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:55,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2023-11-26 12:04:55,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data/11842b344/c263d77f7d094b87863b2641df8e96d0/FLAGc034a3715 [2023-11-26 12:04:55,462 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/data/11842b344/c263d77f7d094b87863b2641df8e96d0 [2023-11-26 12:04:55,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:55,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:55,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:55,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:55,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:55,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:55" (1/1) ... [2023-11-26 12:04:55,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a25c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:55, skipping insertion in model container [2023-11-26 12:04:55,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:55" (1/1) ... [2023-11-26 12:04:55,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:56,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:56,145 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 12:04:56,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:56,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:56,322 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:56,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:56,529 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:56,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56 WrapperNode [2023-11-26 12:04:56,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:56,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:56,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:56,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:56,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:56,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:56,697 INFO L138 Inliner]: procedures = 180, calls = 449, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1460 [2023-11-26 12:04:56,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:56,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:56,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:56,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:56,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:56,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:56,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:56,969 INFO L175 MemorySlicer]: Split 413 memory accesses to 4 slices as follows [2, 401, 5, 5]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 100 writes are split as follows [0, 98, 1, 1]. [2023-11-26 12:04:56,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:56,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:57,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:57,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:57,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:57,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:57,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:57,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:57,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:57,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:57,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (1/1) ... [2023-11-26 12:04:57,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:57,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:57,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:57,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-26 12:04:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-26 12:04:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-26 12:04:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-26 12:04:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 12:04:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 12:04:57,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 12:04:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 12:04:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 12:04:57,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 12:04:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 12:04:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 12:04:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 12:04:57,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 12:04:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 12:04:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 12:04:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 12:04:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 12:04:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:04:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:57,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 12:04:57,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 12:04:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:04:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:04:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:04:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 12:04:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 12:04:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:04:57,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:04:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 12:04:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 12:04:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:57,460 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:57,462 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:05:12,979 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:05:13,021 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:05:13,022 INFO L309 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-26 12:05:13,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:13 BoogieIcfgContainer [2023-11-26 12:05:13,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:05:13,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:05:13,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:05:13,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:05:13,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:55" (1/3) ... [2023-11-26 12:05:13,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684197f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:13, skipping insertion in model container [2023-11-26 12:05:13,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:56" (2/3) ... [2023-11-26 12:05:13,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684197f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:13, skipping insertion in model container [2023-11-26 12:05:13,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:13" (3/3) ... [2023-11-26 12:05:13,031 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-3.i [2023-11-26 12:05:13,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:05:13,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:05:13,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:05:13,105 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;@712d9027, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:05:13,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:05:13,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 266 states, 245 states have (on average 1.6775510204081632) internal successors, (411), 257 states have internal predecessors, (411), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:05:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:05:13,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:13,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:13,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:13,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:13,126 INFO L85 PathProgramCache]: Analyzing trace with hash 379476582, now seen corresponding path program 1 times [2023-11-26 12:05:13,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:13,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106421563] [2023-11-26 12:05:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:13,147 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 [2023-11-26 12:05:13,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:13,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:13,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:13,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:05:13,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:13,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:13,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:13,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106421563] [2023-11-26 12:05:13,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106421563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:13,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:13,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:13,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775210061] [2023-11-26 12:05:13,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:13,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:05:13,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:05:13,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:05:13,482 INFO L87 Difference]: Start difference. First operand has 266 states, 245 states have (on average 1.6775510204081632) internal successors, (411), 257 states have internal predecessors, (411), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:13,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:13,538 INFO L93 Difference]: Finished difference Result 265 states and 356 transitions. [2023-11-26 12:05:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:05:13,541 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 12:05:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:13,554 INFO L225 Difference]: With dead ends: 265 [2023-11-26 12:05:13,554 INFO L226 Difference]: Without dead ends: 264 [2023-11-26 12:05:13,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:05:13,560 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:13,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:05:13,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-26 12:05:13,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2023-11-26 12:05:13,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 244 states have (on average 1.3237704918032787) internal successors, (323), 255 states have internal predecessors, (323), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:05:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 355 transitions. [2023-11-26 12:05:13,623 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 355 transitions. Word has length 10 [2023-11-26 12:05:13,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:13,624 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 355 transitions. [2023-11-26 12:05:13,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:13,624 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 355 transitions. [2023-11-26 12:05:13,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:05:13,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:13,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:13,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:13,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:13,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:13,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash -75738469, now seen corresponding path program 1 times [2023-11-26 12:05:13,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:13,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425519376] [2023-11-26 12:05:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:13,832 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 [2023-11-26 12:05:13,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:13,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:13,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:14,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:05:14,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:14,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:14,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:14,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425519376] [2023-11-26 12:05:14,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425519376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:14,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:14,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:14,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317783034] [2023-11-26 12:05:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:14,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:14,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:14,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:14,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:14,108 INFO L87 Difference]: Start difference. First operand 264 states and 355 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:14,397 INFO L93 Difference]: Finished difference Result 438 states and 581 transitions. [2023-11-26 12:05:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 12:05:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:14,405 INFO L225 Difference]: With dead ends: 438 [2023-11-26 12:05:14,406 INFO L226 Difference]: Without dead ends: 438 [2023-11-26 12:05:14,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:14,407 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 213 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:14,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 695 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:05:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-26 12:05:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 265. [2023-11-26 12:05:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 245 states have (on average 1.3224489795918368) internal successors, (324), 256 states have internal predecessors, (324), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:05:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 356 transitions. [2023-11-26 12:05:14,455 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 356 transitions. Word has length 10 [2023-11-26 12:05:14,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:14,455 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 356 transitions. [2023-11-26 12:05:14,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 356 transitions. [2023-11-26 12:05:14,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 12:05:14,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:14,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:14,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:14,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:14,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:14,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:14,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1590167797, now seen corresponding path program 1 times [2023-11-26 12:05:14,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:14,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947571668] [2023-11-26 12:05:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:14,677 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 [2023-11-26 12:05:14,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:14,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:14,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:15,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:05:15,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:15,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:15,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947571668] [2023-11-26 12:05:15,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947571668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:15,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:15,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:05:15,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454602192] [2023-11-26 12:05:15,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:15,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:05:15,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:15,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:05:15,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:15,452 INFO L87 Difference]: Start difference. First operand 265 states and 356 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:15,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:15,636 INFO L93 Difference]: Finished difference Result 269 states and 352 transitions. [2023-11-26 12:05:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:05:15,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-11-26 12:05:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:15,639 INFO L225 Difference]: With dead ends: 269 [2023-11-26 12:05:15,639 INFO L226 Difference]: Without dead ends: 269 [2023-11-26 12:05:15,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:15,643 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 37 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:15,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 941 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:05:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-26 12:05:15,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 268. [2023-11-26 12:05:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 248 states have (on average 1.2862903225806452) internal successors, (319), 259 states have internal predecessors, (319), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:05:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 351 transitions. [2023-11-26 12:05:15,663 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 351 transitions. Word has length 116 [2023-11-26 12:05:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:15,663 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 351 transitions. [2023-11-26 12:05:15,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 351 transitions. [2023-11-26 12:05:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 12:05:15,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:15,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:15,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:15,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:15,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:15,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1516851969, now seen corresponding path program 1 times [2023-11-26 12:05:15,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:15,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549212572] [2023-11-26 12:05:15,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:15,882 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 [2023-11-26 12:05:15,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:15,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:15,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:16,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:05:16,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:16,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:16,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:16,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549212572] [2023-11-26 12:05:16,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549212572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:16,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:16,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:05:16,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343708167] [2023-11-26 12:05:16,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:16,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:05:16,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:16,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:05:16,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:16,765 INFO L87 Difference]: Start difference. First operand 268 states and 351 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:16,869 INFO L93 Difference]: Finished difference Result 262 states and 341 transitions. [2023-11-26 12:05:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:05:16,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-11-26 12:05:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:16,872 INFO L225 Difference]: With dead ends: 262 [2023-11-26 12:05:16,872 INFO L226 Difference]: Without dead ends: 262 [2023-11-26 12:05:16,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:16,874 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 7 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:16,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 940 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:05:16,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-26 12:05:16,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2023-11-26 12:05:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 242 states have (on average 1.2768595041322315) internal successors, (309), 253 states have internal predecessors, (309), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:05:16,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 341 transitions. [2023-11-26 12:05:16,887 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 341 transitions. Word has length 116 [2023-11-26 12:05:16,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:16,887 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 341 transitions. [2023-11-26 12:05:16,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:16,887 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 341 transitions. [2023-11-26 12:05:16,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-26 12:05:16,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:16,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:16,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:17,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:17,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:17,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2103128191, now seen corresponding path program 1 times [2023-11-26 12:05:17,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:17,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866724132] [2023-11-26 12:05:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:17,105 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 [2023-11-26 12:05:17,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:17,110 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:17,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:17,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:05:17,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:18,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:18,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:18,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866724132] [2023-11-26 12:05:18,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866724132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:18,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:18,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:05:18,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287232487] [2023-11-26 12:05:18,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:18,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:05:18,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:18,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:05:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:18,068 INFO L87 Difference]: Start difference. First operand 262 states and 341 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:18,966 INFO L93 Difference]: Finished difference Result 351 states and 447 transitions. [2023-11-26 12:05:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:05:18,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2023-11-26 12:05:18,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:18,975 INFO L225 Difference]: With dead ends: 351 [2023-11-26 12:05:18,975 INFO L226 Difference]: Without dead ends: 351 [2023-11-26 12:05:18,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:05:18,977 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 75 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:18,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 667 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 12:05:18,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-26 12:05:18,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 298. [2023-11-26 12:05:18,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 278 states have (on average 1.2410071942446044) internal successors, (345), 289 states have internal predecessors, (345), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:05:18,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 377 transitions. [2023-11-26 12:05:18,989 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 377 transitions. Word has length 116 [2023-11-26 12:05:18,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:18,990 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 377 transitions. [2023-11-26 12:05:18,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:05:18,990 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 377 transitions. [2023-11-26 12:05:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-26 12:05:18,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:18,993 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:19,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-26 12:05:19,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:19,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:19,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1321323354, now seen corresponding path program 1 times [2023-11-26 12:05:19,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:19,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098216997] [2023-11-26 12:05:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:19,205 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 [2023-11-26 12:05:19,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:19,208 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:19,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:20,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:05:20,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:05:20,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:20,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:20,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098216997] [2023-11-26 12:05:20,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098216997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:20,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:20,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:05:20,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128983206] [2023-11-26 12:05:20,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:20,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:05:20,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:20,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:05:20,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:20,055 INFO L87 Difference]: Start difference. First operand 298 states and 377 transitions. Second operand has 4 states, 3 states have (on average 41.333333333333336) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:05:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:20,163 INFO L93 Difference]: Finished difference Result 300 states and 381 transitions. [2023-11-26 12:05:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:05:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 41.333333333333336) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 129 [2023-11-26 12:05:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:20,167 INFO L225 Difference]: With dead ends: 300 [2023-11-26 12:05:20,167 INFO L226 Difference]: Without dead ends: 300 [2023-11-26 12:05:20,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:05:20,168 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 1 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:20,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 992 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:05:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-26 12:05:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-11-26 12:05:20,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 279 states have (on average 1.2437275985663083) internal successors, (347), 291 states have internal predecessors, (347), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-26 12:05:20,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 381 transitions. [2023-11-26 12:05:20,181 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 381 transitions. Word has length 129 [2023-11-26 12:05:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:20,181 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 381 transitions. [2023-11-26 12:05:20,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 41.333333333333336) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:05:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 381 transitions. [2023-11-26 12:05:20,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-26 12:05:20,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:20,184 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:20,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:20,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:20,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:20,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1806877752, now seen corresponding path program 1 times [2023-11-26 12:05:20,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:20,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583146767] [2023-11-26 12:05:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:20,403 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 [2023-11-26 12:05:20,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:20,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:20,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:21,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:05:21,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:05:21,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:05:21,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583146767] [2023-11-26 12:05:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583146767] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:21,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:21,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-26 12:05:21,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823678785] [2023-11-26 12:05:21,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:21,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:05:21,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:21,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:05:21,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:05:21,383 INFO L87 Difference]: Start difference. First operand 300 states and 381 transitions. Second operand has 8 states, 6 states have (on average 22.0) internal successors, (132), 8 states have internal predecessors, (132), 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) [2023-11-26 12:05:21,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:21,751 INFO L93 Difference]: Finished difference Result 309 states and 396 transitions. [2023-11-26 12:05:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:05:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 22.0) internal successors, (132), 8 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2023-11-26 12:05:21,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:21,754 INFO L225 Difference]: With dead ends: 309 [2023-11-26 12:05:21,754 INFO L226 Difference]: Without dead ends: 309 [2023-11-26 12:05:21,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:05:21,756 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 7 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:21,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1315 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:05:21,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-26 12:05:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 308. [2023-11-26 12:05:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 286 states have (on average 1.2587412587412588) internal successors, (360), 298 states have internal predecessors, (360), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-26 12:05:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 394 transitions. [2023-11-26 12:05:21,767 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 394 transitions. Word has length 131 [2023-11-26 12:05:21,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:21,768 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 394 transitions. [2023-11-26 12:05:21,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 22.0) internal successors, (132), 8 states have internal predecessors, (132), 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) [2023-11-26 12:05:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 394 transitions. [2023-11-26 12:05:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-26 12:05:21,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:21,771 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:21,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:21,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:21,982 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:21,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:21,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1827052250, now seen corresponding path program 2 times [2023-11-26 12:05:21,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:21,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944356193] [2023-11-26 12:05:21,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:05:21,984 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 [2023-11-26 12:05:21,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:21,985 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:21,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:22,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 12:05:22,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:05:22,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 12:05:22,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 12:05:23,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:05:23,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:23,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944356193] [2023-11-26 12:05:23,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944356193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:05:23,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:05:23,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:05:23,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131791212] [2023-11-26 12:05:23,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:05:23,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:05:23,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:23,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:05:23,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:23,341 INFO L87 Difference]: Start difference. First operand 308 states and 394 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:27,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:05:29,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:05:33,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:05:39,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:05:39,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:39,584 INFO L93 Difference]: Finished difference Result 391 states and 503 transitions. [2023-11-26 12:05:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:05:39,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 135 [2023-11-26 12:05:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:39,600 INFO L225 Difference]: With dead ends: 391 [2023-11-26 12:05:39,601 INFO L226 Difference]: Without dead ends: 391 [2023-11-26 12:05:39,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:05:39,602 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 55 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:39,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 927 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 3 Unknown, 0 Unchecked, 16.2s Time] [2023-11-26 12:05:39,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-26 12:05:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2023-11-26 12:05:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 366 states have (on average 1.2622950819672132) internal successors, (462), 378 states have internal predecessors, (462), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2023-11-26 12:05:39,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 503 transitions. [2023-11-26 12:05:39,621 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 503 transitions. Word has length 135 [2023-11-26 12:05:39,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:39,621 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 503 transitions. [2023-11-26 12:05:39,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:05:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 503 transitions. [2023-11-26 12:05:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-26 12:05:39,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:39,629 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:39,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:39,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:39,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:39,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2115397996, now seen corresponding path program 1 times [2023-11-26 12:05:39,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:39,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811009228] [2023-11-26 12:05:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:05:39,833 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 [2023-11-26 12:05:39,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:39,834 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:39,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 12:05:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:05:40,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 12:05:41,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-26 12:05:41,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:05:41,435 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 1 proven. 68 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-26 12:05:41,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:05:41,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811009228] [2023-11-26 12:05:41,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811009228] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:05:41,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:05:41,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-26 12:05:41,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206027160] [2023-11-26 12:05:41,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:05:41,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 12:05:41,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:05:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:05:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:05:41,440 INFO L87 Difference]: Start difference. First operand 391 states and 503 transitions. Second operand has 14 states, 12 states have (on average 11.916666666666666) internal successors, (143), 14 states have internal predecessors, (143), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 12:05:42,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:05:42,665 INFO L93 Difference]: Finished difference Result 406 states and 533 transitions. [2023-11-26 12:05:42,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-26 12:05:42,666 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.916666666666666) internal successors, (143), 14 states have internal predecessors, (143), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 154 [2023-11-26 12:05:42,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:05:42,670 INFO L225 Difference]: With dead ends: 406 [2023-11-26 12:05:42,670 INFO L226 Difference]: Without dead ends: 404 [2023-11-26 12:05:42,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-26 12:05:42,672 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 12 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 12:05:42,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1975 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 12:05:42,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-11-26 12:05:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2023-11-26 12:05:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 375 states have (on average 1.264) internal successors, (474), 387 states have internal predecessors, (474), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2023-11-26 12:05:42,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 515 transitions. [2023-11-26 12:05:42,705 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 515 transitions. Word has length 154 [2023-11-26 12:05:42,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:05:42,706 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 515 transitions. [2023-11-26 12:05:42,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.916666666666666) internal successors, (143), 14 states have internal predecessors, (143), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 12:05:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 515 transitions. [2023-11-26 12:05:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-26 12:05:42,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:05:42,709 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:05:42,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-26 12:05:42,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:05:42,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:05:42,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:05:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash 941253676, now seen corresponding path program 2 times [2023-11-26 12:05:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:05:42,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016048626] [2023-11-26 12:05:42,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:05:42,927 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 [2023-11-26 12:05:42,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:05:42,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 12:05:42,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_908b931c-bebc-4093-9a90-7c5ced81078c/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-26 12:05:43,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:05:43,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:05:44,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 12:05:44,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:05:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 260 proven. 55 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-11-26 12:05:44,321 INFO L327 TraceCheckSpWp]: Computing backward predicates...