./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI --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 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:44:32,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:44:32,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-24 21:44:32,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:44:32,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:44:32,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:44:32,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:44:32,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:44:32,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:44:32,925 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:44:32,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:44:32,926 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:44:32,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:44:32,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:44:32,929 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:44:32,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:44:32,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:44:32,931 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:44:32,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:44:32,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:44:32,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:44:32,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:44:32,933 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:44:32,934 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:44:32,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:44:32,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:44:32,935 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:44:32,935 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:44:32,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:44:32,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:44:32,938 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:44:32,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:44:32,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:44:32,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:44:32,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:44:32,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:32,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:44:32,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:44:32,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:44:32,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:44:32,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:44:32,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:44:32,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:44:32,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:44:32,943 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 [2023-11-24 21:44:33,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:44:33,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:44:33,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:44:33,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:44:33,331 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:44:33,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2023-11-24 21:44:36,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:44:36,791 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:44:36,795 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2023-11-24 21:44:36,822 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data/7a2562bfb/a148f37214a44b45be47d9f28a0dcfb7/FLAG4e87aec99 [2023-11-24 21:44:36,845 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data/7a2562bfb/a148f37214a44b45be47d9f28a0dcfb7 [2023-11-24 21:44:36,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:44:36,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:44:36,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:36,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:44:36,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:44:36,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:36" (1/1) ... [2023-11-24 21:44:36,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb70a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:36, skipping insertion in model container [2023-11-24 21:44:36,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:36" (1/1) ... [2023-11-24 21:44:36,952 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:44:37,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:37,900 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) [2023-11-24 21:44:37,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@411ade63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:37, skipping insertion in model container [2023-11-24 21:44:37,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:37,947 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:44:37,949 INFO L158 Benchmark]: Toolchain (without parser) took 1095.53ms. Allocated memory is still 186.6MB. Free memory was 135.7MB in the beginning and 156.1MB in the end (delta: -20.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2023-11-24 21:44:37,961 INFO L158 Benchmark]: CDTParser took 1.41ms. Allocated memory is still 134.2MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:44:37,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1090.89ms. Allocated memory is still 186.6MB. Free memory was 135.7MB in the beginning and 156.1MB in the end (delta: -20.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2023-11-24 21:44:37,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41ms. Allocated memory is still 134.2MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1090.89ms. Allocated memory is still 186.6MB. Free memory was 135.7MB in the beginning and 156.1MB in the end (delta: -20.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 734]: 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_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI --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 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:44:40,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:44:40,588 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-24 21:44:40,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:44:40,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:44:40,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:44:40,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:44:40,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:44:40,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:44:40,665 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:44:40,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:44:40,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:44:40,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:44:40,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:44:40,670 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:44:40,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:44:40,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:44:40,673 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:44:40,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:44:40,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:44:40,675 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:44:40,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:44:40,676 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:44:40,677 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:44:40,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:44:40,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:44:40,679 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:44:40,680 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:44:40,680 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:44:40,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:44:40,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:44:40,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:44:40,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:44:40,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:44:40,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:44:40,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:44:40,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:44:40,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:40,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:44:40,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:44:40,687 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:44:40,688 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:44:40,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:44:40,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:44:40,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:44:40,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:44:40,690 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:44:40,690 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_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9885703216edf9cfe4bfb438db591a48e102e73a3e0423f90ce871c05fdf2b57 [2023-11-24 21:44:41,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:44:41,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:44:41,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:44:41,188 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:44:41,188 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:44:41,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2023-11-24 21:44:44,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:44:45,012 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:44:45,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-1.i [2023-11-24 21:44:45,041 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data/123dd1207/ec83cf30013d493cb295875a3fbf968a/FLAG4faa39974 [2023-11-24 21:44:45,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/data/123dd1207/ec83cf30013d493cb295875a3fbf968a [2023-11-24 21:44:45,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:44:45,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:44:45,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:45,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:44:45,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:44:45,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:45" (1/1) ... [2023-11-24 21:44:45,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1ea2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:45, skipping insertion in model container [2023-11-24 21:44:45,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:45" (1/1) ... [2023-11-24 21:44:45,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:44:46,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:46,224 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:44:46,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:44:46,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:46,381 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:44:46,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:46,646 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:44:46,657 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:44:46,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46 WrapperNode [2023-11-24 21:44:46,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:46,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:44:46,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:44:46,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:44:46,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:46,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:46,820 INFO L138 Inliner]: procedures = 180, calls = 525, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2191 [2023-11-24 21:44:46,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:44:46,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:44:46,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:44:46,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:44:46,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:46,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:46,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,068 INFO L175 MemorySlicer]: Split 490 memory accesses to 5 slices as follows [2, 372, 5, 106, 5]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 88 writes are split as follows [0, 82, 1, 4, 1]. [2023-11-24 21:44:47,107 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:44:47,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:44:47,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:44:47,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:44:47,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (1/1) ... [2023-11-24 21:44:47,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:47,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:44:47,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:44:47,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:44:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:44:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:44:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:44:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:44:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-24 21:44:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2023-11-24 21:44:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2023-11-24 21:44:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:44:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:44:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:44:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:44:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-24 21:44:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:44:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:44:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:44:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:44:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:44:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:44:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-24 21:44:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:44:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:44:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:44:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:44:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-24 21:44:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:44:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:44:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:44:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:44:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:44:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:44:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 21:44:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:44:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:44:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:44:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:44:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:44:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:44:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 21:44:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:44:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:44:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:44:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:44:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:44:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-24 21:44:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:44:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:44:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:44:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:44:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-24 21:44:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:44:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:44:47,699 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:44:47,702 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:45:06,271 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:45:06,347 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:45:06,348 INFO L309 CfgBuilder]: Removed 151 assume(true) statements. [2023-11-24 21:45:06,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:45:06 BoogieIcfgContainer [2023-11-24 21:45:06,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:45:06,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:45:06,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:45:06,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:45:06,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:44:45" (1/3) ... [2023-11-24 21:45:06,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc6477b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:45:06, skipping insertion in model container [2023-11-24 21:45:06,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:46" (2/3) ... [2023-11-24 21:45:06,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc6477b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:45:06, skipping insertion in model container [2023-11-24 21:45:06,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:45:06" (3/3) ... [2023-11-24 21:45:06,359 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-1.i [2023-11-24 21:45:06,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:45:06,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 21:45:06,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:45:06,442 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;@74593837, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:45:06,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 21:45:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 443 states, 423 states have (on average 1.6879432624113475) internal successors, (714), 429 states have internal predecessors, (714), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 21:45:06,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 21:45:06,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:06,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:06,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:06,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:06,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1170001432, now seen corresponding path program 1 times [2023-11-24 21:45:06,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:06,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389610111] [2023-11-24 21:45:06,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:06,482 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 [2023-11-24 21:45:06,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:06,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:06,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:06,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:45:06,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:06,879 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:06,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:06,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389610111] [2023-11-24 21:45:06,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389610111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:06,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:06,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:06,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296833711] [2023-11-24 21:45:06,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:06,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:45:06,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:06,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:45:06,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:45:06,932 INFO L87 Difference]: Start difference. First operand has 443 states, 423 states have (on average 1.6879432624113475) internal successors, (714), 429 states have internal predecessors, (714), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:07,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:07,053 INFO L93 Difference]: Finished difference Result 442 states and 581 transitions. [2023-11-24 21:45:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:45:07,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-24 21:45:07,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:07,078 INFO L225 Difference]: With dead ends: 442 [2023-11-24 21:45:07,078 INFO L226 Difference]: Without dead ends: 441 [2023-11-24 21:45:07,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:45:07,084 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:07,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 577 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:45:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-24 21:45:07,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2023-11-24 21:45:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 422 states have (on average 1.3080568720379147) internal successors, (552), 427 states have internal predecessors, (552), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 21:45:07,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 580 transitions. [2023-11-24 21:45:07,153 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 580 transitions. Word has length 13 [2023-11-24 21:45:07,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:07,153 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 580 transitions. [2023-11-24 21:45:07,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 580 transitions. [2023-11-24 21:45:07,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 21:45:07,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:07,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:07,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:07,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:07,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:07,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:07,363 INFO L85 PathProgramCache]: Analyzing trace with hash -99923328, now seen corresponding path program 1 times [2023-11-24 21:45:07,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:07,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107400363] [2023-11-24 21:45:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:07,366 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 [2023-11-24 21:45:07,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:07,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:07,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:07,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:07,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:07,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:07,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:07,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107400363] [2023-11-24 21:45:07,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107400363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:07,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:07,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:45:07,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396376332] [2023-11-24 21:45:07,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:07,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:07,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:07,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:07,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:45:07,852 INFO L87 Difference]: Start difference. First operand 441 states and 580 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:08,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:08,077 INFO L93 Difference]: Finished difference Result 445 states and 576 transitions. [2023-11-24 21:45:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:08,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-11-24 21:45:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:08,086 INFO L225 Difference]: With dead ends: 445 [2023-11-24 21:45:08,086 INFO L226 Difference]: Without dead ends: 445 [2023-11-24 21:45:08,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:45:08,088 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 37 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:08,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1619 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:45:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-24 21:45:08,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 444. [2023-11-24 21:45:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 425 states have (on average 1.2870588235294118) internal successors, (547), 430 states have internal predecessors, (547), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 21:45:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 575 transitions. [2023-11-24 21:45:08,127 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 575 transitions. Word has length 50 [2023-11-24 21:45:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:08,127 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 575 transitions. [2023-11-24 21:45:08,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 575 transitions. [2023-11-24 21:45:08,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 21:45:08,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:08,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:08,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:08,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:08,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:08,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2140301172, now seen corresponding path program 1 times [2023-11-24 21:45:08,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:08,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150208423] [2023-11-24 21:45:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:08,341 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 [2023-11-24 21:45:08,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:08,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:08,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:08,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:45:08,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:08,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:08,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:08,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:08,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150208423] [2023-11-24 21:45:08,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150208423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:08,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:08,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 21:45:08,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903051951] [2023-11-24 21:45:08,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:08,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 21:45:08,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 21:45:08,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:45:08,822 INFO L87 Difference]: Start difference. First operand 444 states and 575 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:08,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:08,995 INFO L93 Difference]: Finished difference Result 438 states and 565 transitions. [2023-11-24 21:45:08,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:08,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-11-24 21:45:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:08,998 INFO L225 Difference]: With dead ends: 438 [2023-11-24 21:45:08,998 INFO L226 Difference]: Without dead ends: 438 [2023-11-24 21:45:08,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:45:09,000 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 4 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:09,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2154 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:45:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-24 21:45:09,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2023-11-24 21:45:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 419 states have (on average 1.2816229116945108) internal successors, (537), 424 states have internal predecessors, (537), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 21:45:09,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 565 transitions. [2023-11-24 21:45:09,014 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 565 transitions. Word has length 50 [2023-11-24 21:45:09,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:09,014 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 565 transitions. [2023-11-24 21:45:09,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 565 transitions. [2023-11-24 21:45:09,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 21:45:09,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:09,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:09,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:09,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:09,227 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:09,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1731964298, now seen corresponding path program 1 times [2023-11-24 21:45:09,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:09,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674798268] [2023-11-24 21:45:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:09,229 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 [2023-11-24 21:45:09,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:09,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:09,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:09,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:45:09,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:09,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:45:09,674 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:45:09,674 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:45:09,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-24 21:45:09,777 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 21:45:09,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-24 21:45:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:09,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:09,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:09,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674798268] [2023-11-24 21:45:09,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674798268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:09,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:09,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:45:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458643756] [2023-11-24 21:45:09,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:09,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:09,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:09,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:09,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:45:09,805 INFO L87 Difference]: Start difference. First operand 438 states and 565 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:10,615 INFO L93 Difference]: Finished difference Result 614 states and 794 transitions. [2023-11-24 21:45:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:10,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-11-24 21:45:10,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:10,620 INFO L225 Difference]: With dead ends: 614 [2023-11-24 21:45:10,621 INFO L226 Difference]: Without dead ends: 614 [2023-11-24 21:45:10,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:45:10,622 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 216 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:10,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1671 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-24 21:45:10,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-11-24 21:45:10,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 440. [2023-11-24 21:45:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 421 states have (on average 1.2802850356294537) internal successors, (539), 426 states have internal predecessors, (539), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 21:45:10,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 567 transitions. [2023-11-24 21:45:10,643 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 567 transitions. Word has length 50 [2023-11-24 21:45:10,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:10,643 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 567 transitions. [2023-11-24 21:45:10,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 567 transitions. [2023-11-24 21:45:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-24 21:45:10,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:10,646 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:10,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:10,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:10,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:10,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1434894877, now seen corresponding path program 1 times [2023-11-24 21:45:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:10,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002697666] [2023-11-24 21:45:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:10,854 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 [2023-11-24 21:45:10,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:10,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:10,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:11,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:11,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:11,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:11,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:11,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002697666] [2023-11-24 21:45:11,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002697666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:11,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:11,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:45:11,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689983229] [2023-11-24 21:45:11,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:11,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:11,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:11,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:11,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:45:11,452 INFO L87 Difference]: Start difference. First operand 440 states and 567 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:11,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:11,634 INFO L93 Difference]: Finished difference Result 444 states and 563 transitions. [2023-11-24 21:45:11,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:11,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-11-24 21:45:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:11,638 INFO L225 Difference]: With dead ends: 444 [2023-11-24 21:45:11,638 INFO L226 Difference]: Without dead ends: 444 [2023-11-24 21:45:11,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:45:11,639 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 36 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:11,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1575 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:45:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-24 21:45:11,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 443. [2023-11-24 21:45:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 424 states have (on average 1.259433962264151) internal successors, (534), 429 states have internal predecessors, (534), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 21:45:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 562 transitions. [2023-11-24 21:45:11,655 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 562 transitions. Word has length 107 [2023-11-24 21:45:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:11,655 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 562 transitions. [2023-11-24 21:45:11,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 562 transitions. [2023-11-24 21:45:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-24 21:45:11,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:11,658 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:11,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:11,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:11,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:11,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:11,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1065013265, now seen corresponding path program 1 times [2023-11-24 21:45:11,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:11,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239522586] [2023-11-24 21:45:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:11,868 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 [2023-11-24 21:45:11,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:11,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:11,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:12,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:12,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:12,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:12,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:12,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239522586] [2023-11-24 21:45:12,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239522586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:12,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:12,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:12,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626472790] [2023-11-24 21:45:12,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:12,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:12,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:12,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:12,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:12,861 INFO L87 Difference]: Start difference. First operand 443 states and 562 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:13,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:13,656 INFO L93 Difference]: Finished difference Result 682 states and 865 transitions. [2023-11-24 21:45:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:13,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-11-24 21:45:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:13,663 INFO L225 Difference]: With dead ends: 682 [2023-11-24 21:45:13,663 INFO L226 Difference]: Without dead ends: 682 [2023-11-24 21:45:13,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:13,664 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 254 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:13,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1124 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 21:45:13,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-24 21:45:13,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 674. [2023-11-24 21:45:13,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 650 states have (on average 1.26) internal successors, (819), 655 states have internal predecessors, (819), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-24 21:45:13,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 857 transitions. [2023-11-24 21:45:13,696 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 857 transitions. Word has length 107 [2023-11-24 21:45:13,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:13,697 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 857 transitions. [2023-11-24 21:45:13,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:13,698 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 857 transitions. [2023-11-24 21:45:13,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-24 21:45:13,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:13,701 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] [2023-11-24 21:45:13,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:13,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:13,915 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:13,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:13,915 INFO L85 PathProgramCache]: Analyzing trace with hash 38912812, now seen corresponding path program 1 times [2023-11-24 21:45:13,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:13,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348060374] [2023-11-24 21:45:13,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:13,916 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 [2023-11-24 21:45:13,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:13,918 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:13,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:14,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:14,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:14,643 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:14,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:14,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348060374] [2023-11-24 21:45:14,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348060374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:14,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:14,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:45:14,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262988901] [2023-11-24 21:45:14,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:14,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:14,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:14,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:14,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:45:14,648 INFO L87 Difference]: Start difference. First operand 674 states and 857 transitions. Second operand has 4 states, 3 states have (on average 38.0) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 21:45:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:14,806 INFO L93 Difference]: Finished difference Result 676 states and 862 transitions. [2023-11-24 21:45:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:14,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 38.0) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 120 [2023-11-24 21:45:14,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:14,813 INFO L225 Difference]: With dead ends: 676 [2023-11-24 21:45:14,813 INFO L226 Difference]: Without dead ends: 676 [2023-11-24 21:45:14,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:45:14,815 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 1 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:14,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1637 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:45:14,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2023-11-24 21:45:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 676. [2023-11-24 21:45:14,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 651 states have (on average 1.261136712749616) internal successors, (821), 657 states have internal predecessors, (821), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (22), 16 states have call predecessors, (22), 19 states have call successors, (22) [2023-11-24 21:45:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 862 transitions. [2023-11-24 21:45:14,845 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 862 transitions. Word has length 120 [2023-11-24 21:45:14,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:14,846 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 862 transitions. [2023-11-24 21:45:14,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 38.0) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 21:45:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 862 transitions. [2023-11-24 21:45:14,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-24 21:45:14,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:14,849 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:14,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:15,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:15,054 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:15,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:15,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1492838404, now seen corresponding path program 1 times [2023-11-24 21:45:15,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:15,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206143399] [2023-11-24 21:45:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:15,056 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 [2023-11-24 21:45:15,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:15,058 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:15,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:15,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:45:15,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 21:45:15,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:45:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 21:45:15,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:15,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206143399] [2023-11-24 21:45:15,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206143399] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:45:15,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:45:15,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-24 21:45:15,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184041294] [2023-11-24 21:45:15,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:45:15,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:45:15,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:15,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:45:15,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:45:15,917 INFO L87 Difference]: Start difference. First operand 676 states and 862 transitions. Second operand has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:45:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:16,310 INFO L93 Difference]: Finished difference Result 685 states and 878 transitions. [2023-11-24 21:45:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 21:45:16,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 122 [2023-11-24 21:45:16,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:16,321 INFO L225 Difference]: With dead ends: 685 [2023-11-24 21:45:16,321 INFO L226 Difference]: Without dead ends: 685 [2023-11-24 21:45:16,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-24 21:45:16,323 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 6 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:16,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2176 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 21:45:16,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-24 21:45:16,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 684. [2023-11-24 21:45:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 658 states have (on average 1.2674772036474165) internal successors, (834), 664 states have internal predecessors, (834), 19 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (22), 16 states have call predecessors, (22), 19 states have call successors, (22) [2023-11-24 21:45:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 875 transitions. [2023-11-24 21:45:16,356 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 875 transitions. Word has length 122 [2023-11-24 21:45:16,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:16,356 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 875 transitions. [2023-11-24 21:45:16,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 20.333333333333332) internal successors, (122), 8 states have internal predecessors, (122), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:45:16,357 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 875 transitions. [2023-11-24 21:45:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-24 21:45:16,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:16,362 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:16,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:16,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:16,572 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:16,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1934093804, now seen corresponding path program 2 times [2023-11-24 21:45:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158086829] [2023-11-24 21:45:16,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:45:16,573 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 [2023-11-24 21:45:16,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:16,574 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:16,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:45:17,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 21:45:17,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:45:17,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 21:45:17,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 21:45:17,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:45:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 21:45:17,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:17,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158086829] [2023-11-24 21:45:17,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158086829] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:45:17,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:45:17,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-24 21:45:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89960891] [2023-11-24 21:45:17,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:45:17,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 21:45:17,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:17,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 21:45:17,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-24 21:45:17,913 INFO L87 Difference]: Start difference. First operand 684 states and 875 transitions. Second operand has 14 states, 12 states have (on average 10.666666666666666) internal successors, (128), 14 states have internal predecessors, (128), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:45:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:19,311 INFO L93 Difference]: Finished difference Result 699 states and 905 transitions. [2023-11-24 21:45:19,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-24 21:45:19,312 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.666666666666666) internal successors, (128), 14 states have internal predecessors, (128), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 126 [2023-11-24 21:45:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:19,321 INFO L225 Difference]: With dead ends: 699 [2023-11-24 21:45:19,321 INFO L226 Difference]: Without dead ends: 697 [2023-11-24 21:45:19,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-24 21:45:19,325 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 12 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:19,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4344 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 21:45:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2023-11-24 21:45:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2023-11-24 21:45:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 667 states have (on average 1.2683658170914542) internal successors, (846), 673 states have internal predecessors, (846), 19 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (22), 16 states have call predecessors, (22), 19 states have call successors, (22) [2023-11-24 21:45:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 887 transitions. [2023-11-24 21:45:19,355 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 887 transitions. Word has length 126 [2023-11-24 21:45:19,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:19,357 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 887 transitions. [2023-11-24 21:45:19,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.666666666666666) internal successors, (128), 14 states have internal predecessors, (128), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:45:19,357 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 887 transitions. [2023-11-24 21:45:19,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-24 21:45:19,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:19,362 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:19,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:19,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:45:19,574 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:19,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:19,574 INFO L85 PathProgramCache]: Analyzing trace with hash -516116370, now seen corresponding path program 3 times [2023-11-24 21:45:19,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:19,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357467103] [2023-11-24 21:45:19,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 21:45:19,576 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 [2023-11-24 21:45:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:19,578 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:45:19,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5ce00-2477-4cc0-9ec3-b0fc9a8f02bc/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-24 21:45:20,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-24 21:45:20,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:45:20,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 21:45:20,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:20,724 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:45:20,725 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:45:20,726 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:45:20,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-24 21:45:23,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 21:45:23,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 87 [2023-11-24 21:45:23,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 21:45:23,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 74 [2023-11-24 21:45:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-24 21:45:23,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:45:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-11-24 21:45:24,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357467103] [2023-11-24 21:45:24,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357467103] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:45:24,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:45:24,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-11-24 21:45:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595281775] [2023-11-24 21:45:24,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:45:24,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 21:45:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 21:45:24,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-24 21:45:24,631 INFO L87 Difference]: Start difference. First operand 693 states and 887 transitions. Second operand has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)