./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:35,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:36,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:42:36,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:36,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:36,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:36,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:36,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:36,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:36,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:36,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:36,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:36,048 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:36,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:36,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:36,050 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:36,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:36,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:36,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:36,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:36,054 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:42:36,058 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:42:36,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:36,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:36,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:36,062 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:36,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:36,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:36,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:36,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:36,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:36,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:36,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:36,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:36,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:36,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:36,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:36,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:36,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:36,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:36,069 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:36,069 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_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 [2023-11-19 07:42:36,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:36,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:36,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:36,483 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:36,483 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:36,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 07:42:39,554 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:40,001 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:40,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 07:42:40,035 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data/7a02944fb/1045a197a51f4abfa611b2c085f910e3/FLAG6fe1042c5 [2023-11-19 07:42:40,050 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data/7a02944fb/1045a197a51f4abfa611b2c085f910e3 [2023-11-19 07:42:40,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:40,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:40,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:40,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:40,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:40,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:40" (1/1) ... [2023-11-19 07:42:40,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2756c3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:40, skipping insertion in model container [2023-11-19 07:42:40,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:40" (1/1) ... [2023-11-19 07:42:40,168 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:40,462 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:42:40,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:40,884 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 07:42:40,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a29cb7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:40, skipping insertion in model container [2023-11-19 07:42:40,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:40,886 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:42:40,888 INFO L158 Benchmark]: Toolchain (without parser) took 832.62ms. Allocated memory is still 127.9MB. Free memory was 86.3MB in the beginning and 66.2MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:42:40,889 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:40,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 830.07ms. Allocated memory is still 127.9MB. Free memory was 86.0MB in the beginning and 66.2MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:42:40,892 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 97.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 830.07ms. Allocated memory is still 127.9MB. Free memory was 86.0MB in the beginning and 66.2MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:43,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:43,787 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-19 07:42:43,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:43,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:43,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:43,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:43,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:43,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:43,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:43,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:43,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:43,852 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:43,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:43,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:43,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:43,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:43,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:43,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:43,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:43,858 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:42:43,859 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:42:43,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:43,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:43,860 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:43,860 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:42:43,861 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:42:43,861 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:43,862 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:43,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:43,863 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:43,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:43,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:43,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:43,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:43,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:43,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:43,866 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:42:43,866 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:42:43,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:43,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:43,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:43,868 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:42:43,868 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:43,868 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_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d7a8078c463999fbe6676df51bd105d1b2c9209543e9e47ea1846fac277ca0 [2023-11-19 07:42:44,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:44,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:44,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:44,386 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:44,386 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:44,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 07:42:47,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:48,045 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:48,046 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2023-11-19 07:42:48,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data/720ab7b60/fe83b18ba9184a7c88aa926cb5848ad7/FLAGe401d1e57 [2023-11-19 07:42:48,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/data/720ab7b60/fe83b18ba9184a7c88aa926cb5848ad7 [2023-11-19 07:42:48,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:48,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:48,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:48,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:48,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:48,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:48" (1/1) ... [2023-11-19 07:42:48,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@975d826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:48, skipping insertion in model container [2023-11-19 07:42:48,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:48" (1/1) ... [2023-11-19 07:42:48,200 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:48,463 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:42:48,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:48,834 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:42:48,849 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:48,871 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:42:49,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:49,006 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:49,027 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:42:49,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:49,177 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:42:49,185 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:49,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49 WrapperNode [2023-11-19 07:42:49,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:49,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:49,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:49,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:49,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,320 INFO L138 Inliner]: procedures = 181, calls = 341, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1123 [2023-11-19 07:42:49,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:49,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:49,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:49,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:49,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:42:49,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:42:49,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:42:49,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:42:49,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (1/1) ... [2023-11-19 07:42:49,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:49,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:42:49,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:42:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:42:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:42:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:42:49,622 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:42:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:42:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:42:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:42:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:42:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:42:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:42:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:42:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:42:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:42:49,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:42:49,897 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:42:49,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:04,599 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:04,612 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:04,612 INFO L302 CfgBuilder]: Removed 60 assume(true) statements. [2023-11-19 07:43:04,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:04 BoogieIcfgContainer [2023-11-19 07:43:04,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:04,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:04,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:04,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:04,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:42:48" (1/3) ... [2023-11-19 07:43:04,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b786a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:04, skipping insertion in model container [2023-11-19 07:43:04,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:49" (2/3) ... [2023-11-19 07:43:04,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b786a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:04, skipping insertion in model container [2023-11-19 07:43:04,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:04" (3/3) ... [2023-11-19 07:43:04,629 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-1.i [2023-11-19 07:43:04,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:04,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:43:04,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:04,720 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;@62e9e4b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:04,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:43:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 187 states have (on average 1.6524064171122994) internal successors, (309), 189 states have internal predecessors, (309), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:43:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:43:04,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:04,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:43:04,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:04,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1172639, now seen corresponding path program 1 times [2023-11-19 07:43:04,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:04,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015272274] [2023-11-19 07:43:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:04,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:04,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:04,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:04,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:43:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:04,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:43:04,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:05,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:05,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:05,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015272274] [2023-11-19 07:43:05,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015272274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:05,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:05,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:05,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467957779] [2023-11-19 07:43:05,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:05,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:05,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:05,069 INFO L87 Difference]: Start difference. First operand has 197 states, 187 states have (on average 1.6524064171122994) internal successors, (309), 189 states have internal predecessors, (309), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:07,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:09,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:10,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:11,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:11,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:11,588 INFO L93 Difference]: Finished difference Result 209 states and 267 transitions. [2023-11-19 07:43:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:11,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 07:43:11,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:11,604 INFO L225 Difference]: With dead ends: 209 [2023-11-19 07:43:11,604 INFO L226 Difference]: Without dead ends: 205 [2023-11-19 07:43:11,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:11,611 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 17 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:11,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 482 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-11-19 07:43:11,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-19 07:43:11,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2023-11-19 07:43:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 193 states have (on average 1.2797927461139897) internal successors, (247), 194 states have internal predecessors, (247), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:43:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 259 transitions. [2023-11-19 07:43:11,672 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 259 transitions. Word has length 4 [2023-11-19 07:43:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:11,673 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 259 transitions. [2023-11-19 07:43:11,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 259 transitions. [2023-11-19 07:43:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:43:11,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:11,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:11,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 07:43:11,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:11,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:11,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 310602656, now seen corresponding path program 1 times [2023-11-19 07:43:11,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:11,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240731497] [2023-11-19 07:43:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:11,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:11,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:11,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:11,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:43:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:12,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:43:12,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:12,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:12,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:12,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240731497] [2023-11-19 07:43:12,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240731497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:12,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:12,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:12,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082430748] [2023-11-19 07:43:12,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:12,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:12,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:12,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:12,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:12,242 INFO L87 Difference]: Start difference. First operand 202 states and 259 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:15,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:17,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:22,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:43:24,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:24,165 INFO L93 Difference]: Finished difference Result 321 states and 413 transitions. [2023-11-19 07:43:24,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:43:24,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:43:24,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:24,173 INFO L225 Difference]: With dead ends: 321 [2023-11-19 07:43:24,173 INFO L226 Difference]: Without dead ends: 319 [2023-11-19 07:43:24,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:24,175 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 166 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:24,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 661 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2023-11-19 07:43:24,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-19 07:43:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-19 07:43:24,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 307 states have (on average 1.280130293159609) internal successors, (393), 308 states have internal predecessors, (393), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:43:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 411 transitions. [2023-11-19 07:43:24,205 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 411 transitions. Word has length 11 [2023-11-19 07:43:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:24,206 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 411 transitions. [2023-11-19 07:43:24,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 411 transitions. [2023-11-19 07:43:24,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 07:43:24,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:24,214 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] [2023-11-19 07:43:24,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 07:43:24,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:24,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:24,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1638652318, now seen corresponding path program 1 times [2023-11-19 07:43:24,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:24,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845605587] [2023-11-19 07:43:24,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:24,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:24,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:24,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:24,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:43:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:25,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:25,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:25,405 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:43:25,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:25,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:25,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845605587] [2023-11-19 07:43:25,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1845605587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:25,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:25,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:25,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726761305] [2023-11-19 07:43:25,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:25,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:25,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:25,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:25,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:25,420 INFO L87 Difference]: Start difference. First operand 319 states and 411 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:25,582 INFO L93 Difference]: Finished difference Result 327 states and 403 transitions. [2023-11-19 07:43:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:25,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 129 [2023-11-19 07:43:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:25,586 INFO L225 Difference]: With dead ends: 327 [2023-11-19 07:43:25,586 INFO L226 Difference]: Without dead ends: 327 [2023-11-19 07:43:25,587 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 [2023-11-19 07:43:25,589 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 43 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:25,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 628 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-19 07:43:25,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2023-11-19 07:43:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 313 states have (on average 1.2236421725239617) internal successors, (383), 314 states have internal predecessors, (383), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:43:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 401 transitions. [2023-11-19 07:43:25,617 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 401 transitions. Word has length 129 [2023-11-19 07:43:25,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:25,617 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 401 transitions. [2023-11-19 07:43:25,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:25,618 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 401 transitions. [2023-11-19 07:43:25,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 07:43:25,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:25,626 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] [2023-11-19 07:43:25,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:25,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:25,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:25,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:25,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1782265456, now seen corresponding path program 1 times [2023-11-19 07:43:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:25,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836763617] [2023-11-19 07:43:25,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:25,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:25,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:25,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:25,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 07:43:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:26,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:26,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:43:26,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:26,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:26,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836763617] [2023-11-19 07:43:26,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836763617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:26,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:26,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:43:26,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421789225] [2023-11-19 07:43:26,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:26,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:43:26,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:26,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:43:26,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:26,783 INFO L87 Difference]: Start difference. First operand 325 states and 401 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:26,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:26,906 INFO L93 Difference]: Finished difference Result 313 states and 381 transitions. [2023-11-19 07:43:26,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:26,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 129 [2023-11-19 07:43:26,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:26,909 INFO L225 Difference]: With dead ends: 313 [2023-11-19 07:43:26,909 INFO L226 Difference]: Without dead ends: 313 [2023-11-19 07:43:26,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:26,911 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 6 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:26,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 835 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:26,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-19 07:43:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2023-11-19 07:43:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 301 states have (on average 1.2059800664451827) internal successors, (363), 302 states have internal predecessors, (363), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:43:26,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 381 transitions. [2023-11-19 07:43:26,930 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 381 transitions. Word has length 129 [2023-11-19 07:43:26,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:26,930 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 381 transitions. [2023-11-19 07:43:26,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:26,931 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 381 transitions. [2023-11-19 07:43:26,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-19 07:43:26,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:26,934 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] [2023-11-19 07:43:26,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:27,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:27,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:27,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:27,146 INFO L85 PathProgramCache]: Analyzing trace with hash 93349718, now seen corresponding path program 1 times [2023-11-19 07:43:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:27,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012624845] [2023-11-19 07:43:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:27,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:27,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:27,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:27,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 07:43:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:27,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:27,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:28,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:43:28,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:28,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:28,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012624845] [2023-11-19 07:43:28,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012624845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:28,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:28,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:28,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237298282] [2023-11-19 07:43:28,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:28,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:28,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:28,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:28,290 INFO L87 Difference]: Start difference. First operand 313 states and 381 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:28,932 INFO L93 Difference]: Finished difference Result 311 states and 378 transitions. [2023-11-19 07:43:28,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:28,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 129 [2023-11-19 07:43:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:28,939 INFO L225 Difference]: With dead ends: 311 [2023-11-19 07:43:28,940 INFO L226 Difference]: Without dead ends: 311 [2023-11-19 07:43:28,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:28,941 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 7 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:28,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 448 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:43:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-19 07:43:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2023-11-19 07:43:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 299 states have (on average 1.2040133779264215) internal successors, (360), 300 states have internal predecessors, (360), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:43:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 378 transitions. [2023-11-19 07:43:28,954 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 378 transitions. Word has length 129 [2023-11-19 07:43:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:28,955 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 378 transitions. [2023-11-19 07:43:28,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:43:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 378 transitions. [2023-11-19 07:43:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-19 07:43:28,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:28,959 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-11-19 07:43:28,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:29,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:29,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:29,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:29,171 INFO L85 PathProgramCache]: Analyzing trace with hash -166389882, now seen corresponding path program 1 times [2023-11-19 07:43:29,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:29,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761844943] [2023-11-19 07:43:29,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:29,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:29,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:29,173 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:29,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 07:43:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:30,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:30,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:43:30,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:30,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:30,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761844943] [2023-11-19 07:43:30,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761844943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:30,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:30,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:30,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942978827] [2023-11-19 07:43:30,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:30,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:30,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:30,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:30,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:30,102 INFO L87 Difference]: Start difference. First operand 311 states and 378 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:43:30,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:30,200 INFO L93 Difference]: Finished difference Result 314 states and 384 transitions. [2023-11-19 07:43:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:30,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 144 [2023-11-19 07:43:30,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:30,205 INFO L225 Difference]: With dead ends: 314 [2023-11-19 07:43:30,205 INFO L226 Difference]: Without dead ends: 314 [2023-11-19 07:43:30,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:30,206 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 2 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:30,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 680 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-19 07:43:30,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-11-19 07:43:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 301 states have (on average 1.2059800664451827) internal successors, (363), 303 states have internal predecessors, (363), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-19 07:43:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 384 transitions. [2023-11-19 07:43:30,223 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 384 transitions. Word has length 144 [2023-11-19 07:43:30,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:30,224 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 384 transitions. [2023-11-19 07:43:30,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:43:30,224 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 384 transitions. [2023-11-19 07:43:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 07:43:30,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:30,228 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-19 07:43:30,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:30,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:30,441 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:30,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1701915906, now seen corresponding path program 1 times [2023-11-19 07:43:30,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:30,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882138032] [2023-11-19 07:43:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:30,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:30,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:30,443 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:30,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 07:43:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:31,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:31,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:43:31,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 07:43:31,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:31,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882138032] [2023-11-19 07:43:31,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [882138032] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:31,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:43:31,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:43:31,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514897465] [2023-11-19 07:43:31,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:31,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:43:31,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:31,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:43:31,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:43:31,596 INFO L87 Difference]: Start difference. First operand 314 states and 384 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:43:32,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:32,014 INFO L93 Difference]: Finished difference Result 325 states and 402 transitions. [2023-11-19 07:43:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:43:32,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 148 [2023-11-19 07:43:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:32,018 INFO L225 Difference]: With dead ends: 325 [2023-11-19 07:43:32,019 INFO L226 Difference]: Without dead ends: 325 [2023-11-19 07:43:32,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:43:32,020 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 9 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:32,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1344 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:43:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-19 07:43:32,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2023-11-19 07:43:32,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 309 states have (on average 1.220064724919094) internal successors, (377), 311 states have internal predecessors, (377), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-19 07:43:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 398 transitions. [2023-11-19 07:43:32,036 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 398 transitions. Word has length 148 [2023-11-19 07:43:32,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:32,037 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 398 transitions. [2023-11-19 07:43:32,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:43:32,038 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 398 transitions. [2023-11-19 07:43:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-19 07:43:32,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:32,041 INFO L195 NwaCegarLoop]: trace histogram [12, 4, 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] [2023-11-19 07:43:32,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:32,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:32,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:32,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:32,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1041004934, now seen corresponding path program 2 times [2023-11-19 07:43:32,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:32,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536982288] [2023-11-19 07:43:32,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:43:32,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:32,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:32,259 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:32,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-19 07:43:33,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:43:33,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:43:33,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:43:33,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 65 proven. 10 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-19 07:43:33,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:43:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 71 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-19 07:43:33,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:33,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536982288] [2023-11-19 07:43:33,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536982288] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:43:33,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:43:33,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:43:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913897522] [2023-11-19 07:43:33,738 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:43:33,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:43:33,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:43:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:43:33,740 INFO L87 Difference]: Start difference. First operand 323 states and 398 transitions. Second operand has 14 states, 14 states have (on average 10.428571428571429) internal successors, (146), 14 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:43:34,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:34,806 INFO L93 Difference]: Finished difference Result 344 states and 434 transitions. [2023-11-19 07:43:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:43:34,808 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.428571428571429) internal successors, (146), 14 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 156 [2023-11-19 07:43:34,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:34,810 INFO L225 Difference]: With dead ends: 344 [2023-11-19 07:43:34,811 INFO L226 Difference]: Without dead ends: 340 [2023-11-19 07:43:34,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:43:34,812 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 17 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:34,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1376 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:43:34,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-19 07:43:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 332. [2023-11-19 07:43:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 318 states have (on average 1.2232704402515724) internal successors, (389), 320 states have internal predecessors, (389), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-19 07:43:34,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 410 transitions. [2023-11-19 07:43:34,828 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 410 transitions. Word has length 156 [2023-11-19 07:43:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:34,828 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 410 transitions. [2023-11-19 07:43:34,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.428571428571429) internal successors, (146), 14 states have internal predecessors, (146), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:43:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 410 transitions. [2023-11-19 07:43:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-19 07:43:34,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:34,832 INFO L195 NwaCegarLoop]: trace histogram [30, 4, 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] [2023-11-19 07:43:34,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:35,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:35,046 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:43:35,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1668519718, now seen corresponding path program 3 times [2023-11-19 07:43:35,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:35,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304130202] [2023-11-19 07:43:35,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:43:35,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:35,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:35,048 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:43:35,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e46905-e9c0-4747-9bae-e0920e5f0067/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 07:43:35,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 07:43:35,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:43:35,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:35,772 INFO L285 TraceCheckSpWp]: Computing forward predicates...