./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:41:34,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:41:34,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-24 21:41:34,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:41:34,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:41:34,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:41:34,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:41:34,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:41:34,991 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:41:34,991 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:41:34,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:41:34,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:41:34,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:41:34,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:41:34,995 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:41:34,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:41:34,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:41:34,997 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:41:34,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:41:34,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:41:34,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:41:34,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:41:35,000 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:41:35,001 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:41:35,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:41:35,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:41:35,002 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:41:35,003 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:41:35,004 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:41:35,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:41:35,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:41:35,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:41:35,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:41:35,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:41:35,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:41:35,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:41:35,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:41:35,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:41:35,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:41:35,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:41:35,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:41:35,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:41:35,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:41:35,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:41:35,015 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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 [2023-11-24 21:41:35,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:41:35,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:41:35,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:41:35,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:41:35,433 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:41:35,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2023-11-24 21:41:38,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:41:39,014 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:41:39,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2023-11-24 21:41:39,042 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data/125e1efc5/62497e79cffc45178543dac47dfc2e04/FLAGafbf453f3 [2023-11-24 21:41:39,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data/125e1efc5/62497e79cffc45178543dac47dfc2e04 [2023-11-24 21:41:39,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:41:39,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:41:39,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:41:39,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:41:39,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:41:39,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:41:39" (1/1) ... [2023-11-24 21:41:39,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399b8a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:39, skipping insertion in model container [2023-11-24 21:41:39,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:41:39" (1/1) ... [2023-11-24 21:41:39,176 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:41:39,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:41:39,876 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 21:41:39,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e8ccda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:39, skipping insertion in model container [2023-11-24 21:41:39,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:41:39,878 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:41:39,880 INFO L158 Benchmark]: Toolchain (without parser) took 806.62ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 91.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 21:41:39,881 INFO L158 Benchmark]: CDTParser took 1.68ms. Allocated memory is still 109.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:41:39,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.26ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 91.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 21:41:39,883 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.68ms. Allocated memory is still 109.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.26ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 91.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:41:42,627 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:41:42,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-24 21:41:42,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:41:42,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:41:42,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:41:42,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:41:42,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:41:42,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:41:42,767 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:41:42,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:41:42,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:41:42,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:41:42,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:41:42,770 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:41:42,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:41:42,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:41:42,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:41:42,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:41:42,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:41:42,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:41:42,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:41:42,775 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:41:42,775 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:41:42,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:41:42,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:41:42,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:41:42,777 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:41:42,778 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:41:42,778 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:41:42,779 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:41:42,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:41:42,779 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:41:42,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:41:42,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:41:42,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:41:42,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:41:42,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:41:42,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:41:42,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:41:42,782 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:41:42,783 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:41:42,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:41:42,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:41:42,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:41:42,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:41:42,784 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:41:42,784 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_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 [2023-11-24 21:41:43,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:41:43,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:41:43,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:41:43,197 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:41:43,197 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:41:43,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2023-11-24 21:41:46,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:41:46,940 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:41:46,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2023-11-24 21:41:46,986 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data/db6568bc6/0cd5b433cf49403189be8bc20f670fa0/FLAG7168e0391 [2023-11-24 21:41:47,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/data/db6568bc6/0cd5b433cf49403189be8bc20f670fa0 [2023-11-24 21:41:47,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:41:47,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:41:47,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:41:47,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:41:47,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:41:47,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:41:47" (1/1) ... [2023-11-24 21:41:47,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@505da690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:47, skipping insertion in model container [2023-11-24 21:41:47,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:41:47" (1/1) ... [2023-11-24 21:41:47,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:41:47,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:41:47,855 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:41:47,872 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:41:47,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:41:47,991 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:41:48,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:41:48,282 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:41:48,292 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:41:48,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48 WrapperNode [2023-11-24 21:41:48,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:41:48,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:41:48,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:41:48,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:41:48,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,493 INFO L138 Inliner]: procedures = 180, calls = 287, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1032 [2023-11-24 21:41:48,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:41:48,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:41:48,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:41:48,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:41:48,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,658 INFO L175 MemorySlicer]: Split 260 memory accesses to 4 slices as follows [2, 5, 34, 219]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 55 writes are split as follows [0, 1, 4, 50]. [2023-11-24 21:41:48,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:41:48,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:41:48,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:41:48,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:41:48,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (1/1) ... [2023-11-24 21:41:48,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:41:48,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:41:48,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:41:48,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:41:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 21:41:48,897 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 21:41:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:41:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:41:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:41:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:41:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:41:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:41:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:41:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:41:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:41:48,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:41:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:41:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:41:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:41:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:41:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:41:48,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:41:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:41:48,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:41:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:41:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:41:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:41:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:41:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:41:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:41:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:41:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:41:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:41:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:41:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:41:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:41:48,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:41:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:41:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:41:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:41:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:41:48,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:41:48,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:41:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:41:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:41:48,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:41:48,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:41:49,265 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:41:49,268 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:41:59,207 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:41:59,269 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:41:59,269 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-24 21:41:59,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:41:59 BoogieIcfgContainer [2023-11-24 21:41:59,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:41:59,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:41:59,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:41:59,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:41:59,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:41:47" (1/3) ... [2023-11-24 21:41:59,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3890ede4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:41:59, skipping insertion in model container [2023-11-24 21:41:59,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:41:48" (2/3) ... [2023-11-24 21:41:59,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3890ede4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:41:59, skipping insertion in model container [2023-11-24 21:41:59,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:41:59" (3/3) ... [2023-11-24 21:41:59,282 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-1.i [2023-11-24 21:41:59,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:41:59,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 21:41:59,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:41:59,372 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;@745f93c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:41:59,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 21:41:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-24 21:41:59,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 21:41:59,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:41:59,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:41:59,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:41:59,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:41:59,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1759675116, now seen corresponding path program 1 times [2023-11-24 21:41:59,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:41:59,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788309737] [2023-11-24 21:41:59,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:41:59,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:41:59,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:41:59,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:41:59,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:41:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:41:59,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:41:59,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:41:59,762 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 21:41:59,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:41:59,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:41:59,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788309737] [2023-11-24 21:41:59,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788309737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:41:59,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:41:59,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:41:59,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537715434] [2023-11-24 21:41:59,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:41:59,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:41:59,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:41:59,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:41:59,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:41:59,812 INFO L87 Difference]: Start difference. First operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:41:59,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:41:59,882 INFO L93 Difference]: Finished difference Result 206 states and 271 transitions. [2023-11-24 21:41:59,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:41:59,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-24 21:41:59,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:41:59,898 INFO L225 Difference]: With dead ends: 206 [2023-11-24 21:41:59,899 INFO L226 Difference]: Without dead ends: 205 [2023-11-24 21:41:59,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 21:41:59,905 INFO L413 NwaCegarLoop]: 267 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, 267 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 21:41:59,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:41:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-24 21:41:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-11-24 21:41:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-24 21:41:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2023-11-24 21:41:59,968 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 8 [2023-11-24 21:41:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:41:59,969 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2023-11-24 21:41:59,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:41:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2023-11-24 21:41:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 21:41:59,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:41:59,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:41:59,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:00,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:00,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:00,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:00,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1371810801, now seen corresponding path program 1 times [2023-11-24 21:42:00,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:00,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561922292] [2023-11-24 21:42:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:42:00,187 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 21:42:00,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:00,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:00,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:42:00,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:42:00,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:00,512 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:42:00,513 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:42:00,514 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:42:00,526 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 21:42:00,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 21:42:00,634 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 21:42:00,661 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 21:42:00,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:42:00,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:00,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561922292] [2023-11-24 21:42:00,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561922292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:42:00,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:42:00,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:42:00,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504458495] [2023-11-24 21:42:00,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:42:00,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:42:00,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:42:00,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:42:00,666 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:42:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:01,619 INFO L93 Difference]: Finished difference Result 395 states and 526 transitions. [2023-11-24 21:42:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:42:01,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-24 21:42:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:01,626 INFO L225 Difference]: With dead ends: 395 [2023-11-24 21:42:01,626 INFO L226 Difference]: Without dead ends: 395 [2023-11-24 21:42:01,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 21:42:01,628 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 236 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:42:01,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 737 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 21:42:01,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-24 21:42:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 207. [2023-11-24 21:42:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 193 states have (on average 1.3160621761658031) internal successors, (254), 200 states have internal predecessors, (254), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-24 21:42:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 272 transitions. [2023-11-24 21:42:01,657 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 272 transitions. Word has length 10 [2023-11-24 21:42:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:01,658 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 272 transitions. [2023-11-24 21:42:01,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:42:01,658 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 272 transitions. [2023-11-24 21:42:01,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-24 21:42:01,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:01,662 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] [2023-11-24 21:42:01,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:01,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:01,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:01,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash 389025315, now seen corresponding path program 1 times [2023-11-24 21:42:01,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:01,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565616567] [2023-11-24 21:42:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:42:01,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:42:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:01,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:01,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:42:02,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:42:02,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:02,417 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 21:42:02,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:42:02,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:02,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565616567] [2023-11-24 21:42:02,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565616567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:42:02,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:42:02,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:42:02,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382462314] [2023-11-24 21:42:02,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:42:02,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:42:02,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:02,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:42:02,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:42:02,420 INFO L87 Difference]: Start difference. First operand 207 states and 272 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:42:02,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:02,607 INFO L93 Difference]: Finished difference Result 211 states and 268 transitions. [2023-11-24 21:42:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:42:02,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-24 21:42:02,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:02,609 INFO L225 Difference]: With dead ends: 211 [2023-11-24 21:42:02,609 INFO L226 Difference]: Without dead ends: 211 [2023-11-24 21:42:02,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 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 21:42:02,611 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 36 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 690 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 21:42:02,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 690 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:42:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-24 21:42:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2023-11-24 21:42:02,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 196 states have (on average 1.2704081632653061) internal successors, (249), 203 states have internal predecessors, (249), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-24 21:42:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 267 transitions. [2023-11-24 21:42:02,626 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 267 transitions. Word has length 66 [2023-11-24 21:42:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:02,627 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 267 transitions. [2023-11-24 21:42:02,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:42:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 267 transitions. [2023-11-24 21:42:02,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-24 21:42:02,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:02,630 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] [2023-11-24 21:42:02,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:02,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:02,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:02,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash -2053103593, now seen corresponding path program 1 times [2023-11-24 21:42:02,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:02,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340568993] [2023-11-24 21:42:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:42:02,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:42:02,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:02,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:02,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:42:03,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:42:03,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:03,768 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 21:42:03,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:42:03,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:03,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340568993] [2023-11-24 21:42:03,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340568993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:42:03,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:42:03,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:42:03,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323235587] [2023-11-24 21:42:03,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:42:03,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:42:03,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:03,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:42:03,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:42:03,771 INFO L87 Difference]: Start difference. First operand 210 states and 267 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:42:04,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:04,718 INFO L93 Difference]: Finished difference Result 336 states and 429 transitions. [2023-11-24 21:42:04,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:42:04,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-24 21:42:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:04,722 INFO L225 Difference]: With dead ends: 336 [2023-11-24 21:42:04,722 INFO L226 Difference]: Without dead ends: 336 [2023-11-24 21:42:04,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 21:42:04,724 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 113 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:42:04,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 548 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 21:42:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-24 21:42:04,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 318. [2023-11-24 21:42:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 304 states have (on average 1.2598684210526316) internal successors, (383), 311 states have internal predecessors, (383), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-24 21:42:04,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 401 transitions. [2023-11-24 21:42:04,750 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 401 transitions. Word has length 66 [2023-11-24 21:42:04,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:04,754 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 401 transitions. [2023-11-24 21:42:04,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:42:04,755 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 401 transitions. [2023-11-24 21:42:04,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 21:42:04,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:04,761 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] [2023-11-24 21:42:04,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:04,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:04,969 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:04,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:04,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2025315904, now seen corresponding path program 1 times [2023-11-24 21:42:04,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:04,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735270857] [2023-11-24 21:42:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:42:04,971 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 21:42:04,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:04,973 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:04,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:42:05,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:42:05,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:05,572 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 21:42:05,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:42:05,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:05,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735270857] [2023-11-24 21:42:05,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735270857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:42:05,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:42:05,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:42:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097148170] [2023-11-24 21:42:05,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:42:05,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:42:05,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:05,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:42:05,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:42:05,575 INFO L87 Difference]: Start difference. First operand 318 states and 401 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 21:42:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:05,664 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2023-11-24 21:42:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:42:05,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 79 [2023-11-24 21:42:05,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:05,667 INFO L225 Difference]: With dead ends: 320 [2023-11-24 21:42:05,667 INFO L226 Difference]: Without dead ends: 320 [2023-11-24 21:42:05,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:42:05,668 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:42:05,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 758 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:42:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-24 21:42:05,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-11-24 21:42:05,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 313 states have internal predecessors, (385), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-24 21:42:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 404 transitions. [2023-11-24 21:42:05,681 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 404 transitions. Word has length 79 [2023-11-24 21:42:05,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:05,681 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 404 transitions. [2023-11-24 21:42:05,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 21:42:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 404 transitions. [2023-11-24 21:42:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-24 21:42:05,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:05,685 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] [2023-11-24 21:42:05,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:05,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:05,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:05,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash 428214796, now seen corresponding path program 1 times [2023-11-24 21:42:05,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:05,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561565567] [2023-11-24 21:42:05,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:42:05,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:42:05,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:05,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:05,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:42:06,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:42:06,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:06,563 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 21:42:06,564 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:42:06,727 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 21:42:06,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561565567] [2023-11-24 21:42:06,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561565567] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:42:06,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:42:06,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-24 21:42:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555023970] [2023-11-24 21:42:06,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:42:06,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:42:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:06,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:42:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:42:06,734 INFO L87 Difference]: Start difference. First operand 320 states and 404 transitions. Second operand has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:42:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:07,043 INFO L93 Difference]: Finished difference Result 329 states and 418 transitions. [2023-11-24 21:42:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 21:42:07,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 81 [2023-11-24 21:42:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:07,047 INFO L225 Difference]: With dead ends: 329 [2023-11-24 21:42:07,047 INFO L226 Difference]: Without dead ends: 329 [2023-11-24 21:42:07,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 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 21:42:07,048 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 7 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:42:07,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1008 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:42:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-24 21:42:07,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2023-11-24 21:42:07,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 312 states have (on average 1.2756410256410255) internal successors, (398), 320 states have internal predecessors, (398), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-24 21:42:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 417 transitions. [2023-11-24 21:42:07,068 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 417 transitions. Word has length 81 [2023-11-24 21:42:07,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:07,069 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 417 transitions. [2023-11-24 21:42:07,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.833333333333334) internal successors, (83), 8 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:42:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 417 transitions. [2023-11-24 21:42:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-24 21:42:07,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:07,075 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] [2023-11-24 21:42:07,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:07,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:07,284 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:07,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:07,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2119797344, now seen corresponding path program 2 times [2023-11-24 21:42:07,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:07,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803193471] [2023-11-24 21:42:07,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:42:07,287 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 21:42:07,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:07,288 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:07,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:07,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 21:42:07,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:42:07,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:42:07,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:07,791 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:42:07,792 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:42:07,793 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:42:07,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-24 21:42:07,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 21:42:07,880 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 21:42:07,901 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-24 21:42:07,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:42:07,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:07,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803193471] [2023-11-24 21:42:07,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803193471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:42:07,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:42:07,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:42:07,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419586518] [2023-11-24 21:42:07,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:42:07,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:42:07,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:07,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:42:07,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:42:07,905 INFO L87 Difference]: Start difference. First operand 328 states and 417 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 21:42:08,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:08,610 INFO L93 Difference]: Finished difference Result 488 states and 628 transitions. [2023-11-24 21:42:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:42:08,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2023-11-24 21:42:08,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:08,615 INFO L225 Difference]: With dead ends: 488 [2023-11-24 21:42:08,615 INFO L226 Difference]: Without dead ends: 488 [2023-11-24 21:42:08,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 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 21:42:08,616 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 207 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:42:08,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 705 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 21:42:08,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-11-24 21:42:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 330. [2023-11-24 21:42:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 322 states have internal predecessors, (400), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-24 21:42:08,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 419 transitions. [2023-11-24 21:42:08,630 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 419 transitions. Word has length 85 [2023-11-24 21:42:08,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:08,631 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 419 transitions. [2023-11-24 21:42:08,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 21:42:08,631 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 419 transitions. [2023-11-24 21:42:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-24 21:42:08,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:08,633 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] [2023-11-24 21:42:08,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:08,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:08,837 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:08,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1705228394, now seen corresponding path program 1 times [2023-11-24 21:42:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:08,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974542076] [2023-11-24 21:42:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:42:08,838 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 21:42:08,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:08,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:08,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:42:09,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 21:42:09,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:09,594 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 21:42:09,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:42:09,859 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 21:42:09,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:09,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974542076] [2023-11-24 21:42:09,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974542076] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:42:09,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:42:09,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-24 21:42:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417679705] [2023-11-24 21:42:09,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:42:09,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 21:42:09,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:09,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 21:42:09,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-24 21:42:09,862 INFO L87 Difference]: Start difference. First operand 330 states and 419 transitions. Second operand has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:42:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:10,745 INFO L93 Difference]: Finished difference Result 345 states and 441 transitions. [2023-11-24 21:42:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-24 21:42:10,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 122 [2023-11-24 21:42:10,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:10,749 INFO L225 Difference]: With dead ends: 345 [2023-11-24 21:42:10,749 INFO L226 Difference]: Without dead ends: 343 [2023-11-24 21:42:10,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-24 21:42:10,751 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 12 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:42:10,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1762 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:42:10,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-24 21:42:10,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2023-11-24 21:42:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 323 states have (on average 1.2755417956656347) internal successors, (412), 331 states have internal predecessors, (412), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-24 21:42:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 431 transitions. [2023-11-24 21:42:10,763 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 431 transitions. Word has length 122 [2023-11-24 21:42:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:10,763 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 431 transitions. [2023-11-24 21:42:10,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.416666666666666) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:42:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 431 transitions. [2023-11-24 21:42:10,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-24 21:42:10,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:10,766 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] [2023-11-24 21:42:10,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:10,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:10,975 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:10,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:10,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1598227451, now seen corresponding path program 2 times [2023-11-24 21:42:10,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:10,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900209711] [2023-11-24 21:42:10,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:42:10,977 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 21:42:10,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:10,978 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:10,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:11,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 21:42:11,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:42:11,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:42:11,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:11,468 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-24 21:42:11,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:42:11,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:11,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900209711] [2023-11-24 21:42:11,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900209711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:42:11,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:42:11,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:42:11,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712592277] [2023-11-24 21:42:11,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:42:11,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:42:11,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:11,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:42:11,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:42:11,472 INFO L87 Difference]: Start difference. First operand 339 states and 431 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 21:42:11,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:11,650 INFO L93 Difference]: Finished difference Result 347 states and 423 transitions. [2023-11-24 21:42:11,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:42:11,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 131 [2023-11-24 21:42:11,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:11,654 INFO L225 Difference]: With dead ends: 347 [2023-11-24 21:42:11,654 INFO L226 Difference]: Without dead ends: 347 [2023-11-24 21:42:11,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 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 21:42:11,655 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 36 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 657 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 21:42:11,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 657 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 21:42:11,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-24 21:42:11,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2023-11-24 21:42:11,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 329 states have (on average 1.221884498480243) internal successors, (402), 337 states have internal predecessors, (402), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-24 21:42:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 421 transitions. [2023-11-24 21:42:11,671 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 421 transitions. Word has length 131 [2023-11-24 21:42:11,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:11,671 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 421 transitions. [2023-11-24 21:42:11,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 21:42:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 421 transitions. [2023-11-24 21:42:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-24 21:42:11,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:11,674 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] [2023-11-24 21:42:11,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:11,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:11,877 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:11,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash -500424967, now seen corresponding path program 1 times [2023-11-24 21:42:11,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:11,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894627048] [2023-11-24 21:42:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:42:11,878 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 21:42:11,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:11,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:11,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:42:12,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-24 21:42:12,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:12,907 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 70 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-24 21:42:12,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:42:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 122 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-24 21:42:13,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894627048] [2023-11-24 21:42:13,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894627048] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:42:13,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:42:13,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-24 21:42:13,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809008804] [2023-11-24 21:42:13,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:42:13,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-24 21:42:13,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:13,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-24 21:42:13,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-24 21:42:13,712 INFO L87 Difference]: Start difference. First operand 345 states and 421 transitions. Second operand has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:42:16,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:42:16,877 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2023-11-24 21:42:16,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-24 21:42:16,878 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2023-11-24 21:42:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:42:16,881 INFO L225 Difference]: With dead ends: 375 [2023-11-24 21:42:16,881 INFO L226 Difference]: Without dead ends: 373 [2023-11-24 21:42:16,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-24 21:42:16,884 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 25 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 21:42:16,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3124 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 21:42:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-24 21:42:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 363. [2023-11-24 21:42:16,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 347 states have (on average 1.2276657060518732) internal successors, (426), 355 states have internal predecessors, (426), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-24 21:42:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 445 transitions. [2023-11-24 21:42:16,900 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 445 transitions. Word has length 131 [2023-11-24 21:42:16,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:42:16,900 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 445 transitions. [2023-11-24 21:42:16,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 5.708333333333333) internal successors, (137), 26 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-24 21:42:16,901 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 445 transitions. [2023-11-24 21:42:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-24 21:42:16,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:42:16,903 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:42:16,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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)] Forceful destruction successful, exit code 0 [2023-11-24 21:42:17,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:17,109 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:42:17,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:42:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1027416807, now seen corresponding path program 2 times [2023-11-24 21:42:17,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:42:17,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187236045] [2023-11-24 21:42:17,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:42:17,110 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 21:42:17,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:42:17,111 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 21:42:17,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_184d5173-d14d-46e8-9ac7-7f78ae1da2a3/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 (12)] Waiting until timeout for monitored process [2023-11-24 21:42:17,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 21:42:17,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:42:17,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-24 21:42:18,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:42:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 280 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-24 21:42:18,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:42:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 2 proven. 530 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-24 21:42:21,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:42:21,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187236045] [2023-11-24 21:42:21,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187236045] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:42:21,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:42:21,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-24 21:42:21,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488907035] [2023-11-24 21:42:21,176 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:42:21,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-24 21:42:21,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:42:21,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-24 21:42:21,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-24 21:42:21,180 INFO L87 Difference]: Start difference. First operand 363 states and 445 transitions. Second operand has 50 states, 48 states have (on average 3.3541666666666665) internal successors, (161), 50 states have internal predecessors, (161), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4)