./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:52:56,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:52:56,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:52:56,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:52:56,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:52:56,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:52:56,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:52:56,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:52:56,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:52:56,139 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:52:56,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:52:56,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:52:56,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:52:56,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:52:56,144 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:52:56,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:52:56,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:52:56,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:52:56,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:52:56,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:52:56,147 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:52:56,147 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:52:56,148 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:52:56,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:52:56,149 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:52:56,149 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:52:56,150 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:52:56,150 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:52:56,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:52:56,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:52:56,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:52:56,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:52:56,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:52:56,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:52:56,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:52:56,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:52:56,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:52:56,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:52:56,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:52:56,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:52:56,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:52:56,156 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_99464b55-554a-4621-81da-7d516de8dff7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2023-11-24 21:52:56,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:52:56,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:52:56,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:52:56,515 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:52:56,515 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:52:56,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2023-11-24 21:52:59,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:52:59,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:52:59,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2023-11-24 21:52:59,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data/e1407ddbd/34a4af4817214fa78351f9f1877d6543/FLAG8e5f7538f [2023-11-24 21:53:00,020 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data/e1407ddbd/34a4af4817214fa78351f9f1877d6543 [2023-11-24 21:53:00,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:53:00,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:53:00,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:53:00,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:53:00,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:53:00,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:53:00" (1/1) ... [2023-11-24 21:53:00,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af388f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:00, skipping insertion in model container [2023-11-24 21:53:00,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:53:00" (1/1) ... [2023-11-24 21:53:00,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:53:00,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:53:00,812 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 21:53:00,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@27fc14dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:00, skipping insertion in model container [2023-11-24 21:53:00,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:53:00,816 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:53:00,818 INFO L158 Benchmark]: Toolchain (without parser) took 789.29ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 93.4MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:53:00,819 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:53:00,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.64ms. Allocated memory is still 155.2MB. Free memory was 114.7MB in the beginning and 93.4MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 21:53:00,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 783.64ms. Allocated memory is still 155.2MB. Free memory was 114.7MB in the beginning and 93.4MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:53:03,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:53:03,648 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:53:03,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:53:03,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:53:03,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:53:03,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:53:03,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:53:03,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:53:03,731 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:53:03,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:53:03,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:53:03,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:53:03,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:53:03,736 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:53:03,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:53:03,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:53:03,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:53:03,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:53:03,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:53:03,741 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:53:03,741 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:53:03,742 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:53:03,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:53:03,743 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:53:03,744 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:53:03,744 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:53:03,745 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:53:03,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:53:03,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:53:03,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:53:03,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:53:03,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:53:03,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:53:03,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:53:03,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:53:03,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:53:03,752 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:53:03,753 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:53:03,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:53:03,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:53:03,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:53:03,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:53:03,754 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:53:03,755 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_99464b55-554a-4621-81da-7d516de8dff7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d35be8b8e312d4eada0f7530ae9d43ecf1865be922a243e0781a735d175935c [2023-11-24 21:53:04,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:53:04,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:53:04,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:53:04,227 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:53:04,228 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:53:04,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2023-11-24 21:53:07,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:53:07,984 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:53:07,999 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-2.i [2023-11-24 21:53:08,025 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data/c1bd0eeb9/5aebff54021845ce99ef6220cb74cff8/FLAG25e093ce3 [2023-11-24 21:53:08,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/data/c1bd0eeb9/5aebff54021845ce99ef6220cb74cff8 [2023-11-24 21:53:08,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:53:08,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:53:08,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:53:08,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:53:08,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:53:08,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:53:08" (1/1) ... [2023-11-24 21:53:08,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a2dcb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:08, skipping insertion in model container [2023-11-24 21:53:08,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:53:08" (1/1) ... [2023-11-24 21:53:08,157 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:53:09,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:53:09,103 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:53:09,117 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:53:09,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:53:09,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:53:09,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:53:09,526 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:53:09,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09 WrapperNode [2023-11-24 21:53:09,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:53:09,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:53:09,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:53:09,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:53:09,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:09,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:09,729 INFO L138 Inliner]: procedures = 180, calls = 401, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1340 [2023-11-24 21:53:09,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:53:09,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:53:09,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:53:09,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:53:09,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:09,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:09,782 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:09,972 INFO L175 MemorySlicer]: Split 367 memory accesses to 4 slices as follows [2, 5, 5, 355]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 92 writes are split as follows [0, 1, 1, 90]. [2023-11-24 21:53:09,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:09,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:10,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:10,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:10,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:10,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:10,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:53:10,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:53:10,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:53:10,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:53:10,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (1/1) ... [2023-11-24 21:53:10,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:53:10,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:53:10,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:53:10,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:53:10,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:53:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:53:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:53:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:53:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:53:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:53:10,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:53:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:53:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:53:10,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:53:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:53:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:53:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:53:10,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:53:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:53:10,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:53:10,197 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:53:10,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:53:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:53:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:53:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:53:10,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:53:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:53:10,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:53:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:53:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:53:10,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:53:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:53:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:53:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:53:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:53:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:53:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:53:10,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:53:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:53:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:53:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:53:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:53:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:53:10,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:53:10,547 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:53:10,550 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:53:10,554 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:53:10,623 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:53:10,645 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:53:10,667 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:53:17,734 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:53:18,087 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:53:18,087 INFO L309 CfgBuilder]: Removed 69 assume(true) statements. [2023-11-24 21:53:18,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:53:18 BoogieIcfgContainer [2023-11-24 21:53:18,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:53:18,093 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:53:18,093 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:53:18,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:53:18,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:53:08" (1/3) ... [2023-11-24 21:53:18,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792206d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:53:18, skipping insertion in model container [2023-11-24 21:53:18,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:53:09" (2/3) ... [2023-11-24 21:53:18,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792206d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:53:18, skipping insertion in model container [2023-11-24 21:53:18,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:53:18" (3/3) ... [2023-11-24 21:53:18,103 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-2.i [2023-11-24 21:53:18,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:53:18,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 753 error locations. [2023-11-24 21:53:18,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:53:18,240 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;@523ba892, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:53:18,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 753 error locations. [2023-11-24 21:53:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 1340 states, 574 states have (on average 2.559233449477352) internal successors, (1469), 1331 states have internal predecessors, (1469), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:53:18,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:18,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:53:18,266 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:18,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:18,273 INFO L85 PathProgramCache]: Analyzing trace with hash 71454806, now seen corresponding path program 1 times [2023-11-24 21:53:18,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:18,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631942618] [2023-11-24 21:53:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:18,291 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 21:53:18,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:18,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:18,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:18,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:53:18,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:18,535 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 21:53:18,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:18,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:18,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631942618] [2023-11-24 21:53:18,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631942618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:18,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:18,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:53:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28510007] [2023-11-24 21:53:18,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:18,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:53:18,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:18,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:53:18,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:53:18,622 INFO L87 Difference]: Start difference. First operand has 1340 states, 574 states have (on average 2.559233449477352) internal successors, (1469), 1331 states have internal predecessors, (1469), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:53:20,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:20,064 INFO L93 Difference]: Finished difference Result 1321 states and 1404 transitions. [2023-11-24 21:53:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:53:20,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:53:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:20,096 INFO L225 Difference]: With dead ends: 1321 [2023-11-24 21:53:20,097 INFO L226 Difference]: Without dead ends: 1320 [2023-11-24 21:53:20,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 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 21:53:20,103 INFO L413 NwaCegarLoop]: 1261 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:20,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1261 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 21:53:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2023-11-24 21:53:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2023-11-24 21:53:20,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 565 states have (on average 2.426548672566372) internal successors, (1371), 1311 states have internal predecessors, (1371), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1403 transitions. [2023-11-24 21:53:20,239 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1403 transitions. Word has length 4 [2023-11-24 21:53:20,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:20,240 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 1403 transitions. [2023-11-24 21:53:20,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:53:20,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1403 transitions. [2023-11-24 21:53:20,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:53:20,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:20,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:53:20,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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)] Ended with exit code 0 [2023-11-24 21:53:20,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:20,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:20,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash 71454868, now seen corresponding path program 1 times [2023-11-24 21:53:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:20,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761348554] [2023-11-24 21:53:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:20,446 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 21:53:20,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:20,448 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:20,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:20,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:53:20,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:20,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-11-24 21:53:20,737 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 21:53:20,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:20,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:20,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761348554] [2023-11-24 21:53:20,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761348554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:20,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:20,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:53:20,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494703449] [2023-11-24 21:53:20,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:20,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:53:20,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:20,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:53:20,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:20,754 INFO L87 Difference]: Start difference. First operand 1320 states and 1403 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:53:24,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:24,399 INFO L93 Difference]: Finished difference Result 1350 states and 1446 transitions. [2023-11-24 21:53:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:53:24,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:53:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:24,409 INFO L225 Difference]: With dead ends: 1350 [2023-11-24 21:53:24,409 INFO L226 Difference]: Without dead ends: 1350 [2023-11-24 21:53:24,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:24,411 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 1042 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:24,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 838 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-24 21:53:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2023-11-24 21:53:24,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1293. [2023-11-24 21:53:24,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 631 states have (on average 2.223454833597464) internal successors, (1403), 1284 states have internal predecessors, (1403), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1435 transitions. [2023-11-24 21:53:24,458 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1435 transitions. Word has length 4 [2023-11-24 21:53:24,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:24,458 INFO L495 AbstractCegarLoop]: Abstraction has 1293 states and 1435 transitions. [2023-11-24 21:53:24,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:53:24,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1435 transitions. [2023-11-24 21:53:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:53:24,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:24,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:53:24,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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)] Ended with exit code 0 [2023-11-24 21:53:24,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:24,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:24,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:24,663 INFO L85 PathProgramCache]: Analyzing trace with hash 71454869, now seen corresponding path program 1 times [2023-11-24 21:53:24,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:24,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190273363] [2023-11-24 21:53:24,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:24,664 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 21:53:24,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:24,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:24,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:24,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:53:24,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:24,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-24 21:53:24,911 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 21:53:24,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:24,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:24,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190273363] [2023-11-24 21:53:24,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190273363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:24,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:24,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:53:24,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688973954] [2023-11-24 21:53:24,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:24,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:53:24,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:24,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:53:24,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:24,919 INFO L87 Difference]: Start difference. First operand 1293 states and 1435 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:53:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:30,209 INFO L93 Difference]: Finished difference Result 1565 states and 1727 transitions. [2023-11-24 21:53:30,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:53:30,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-24 21:53:30,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:30,219 INFO L225 Difference]: With dead ends: 1565 [2023-11-24 21:53:30,220 INFO L226 Difference]: Without dead ends: 1565 [2023-11-24 21:53:30,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:30,224 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 456 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:30,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1462 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-24 21:53:30,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2023-11-24 21:53:30,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1416. [2023-11-24 21:53:30,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 764 states have (on average 2.193717277486911) internal successors, (1676), 1407 states have internal predecessors, (1676), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:30,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1708 transitions. [2023-11-24 21:53:30,281 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1708 transitions. Word has length 4 [2023-11-24 21:53:30,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:30,281 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 1708 transitions. [2023-11-24 21:53:30,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:53:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1708 transitions. [2023-11-24 21:53:30,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 21:53:30,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:30,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-24 21:53:30,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:30,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:30,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:30,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:30,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2078175095, now seen corresponding path program 1 times [2023-11-24 21:53:30,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:30,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077502227] [2023-11-24 21:53:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:30,486 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 21:53:30,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:30,532 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:30,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:30,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:53:30,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:30,697 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 21:53:30,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:30,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:30,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077502227] [2023-11-24 21:53:30,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077502227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:30,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:30,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:53:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879349141] [2023-11-24 21:53:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:30,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:53:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:53:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:30,701 INFO L87 Difference]: Start difference. First operand 1416 states and 1708 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 21:53:32,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:32,873 INFO L93 Difference]: Finished difference Result 2605 states and 3158 transitions. [2023-11-24 21:53:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:53:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-24 21:53:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:32,889 INFO L225 Difference]: With dead ends: 2605 [2023-11-24 21:53:32,890 INFO L226 Difference]: Without dead ends: 2605 [2023-11-24 21:53:32,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 21:53:32,891 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1029 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:32,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 2710 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 21:53:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2023-11-24 21:53:32,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 1417. [2023-11-24 21:53:32,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 765 states have (on average 2.1921568627450982) internal successors, (1677), 1408 states have internal predecessors, (1677), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1709 transitions. [2023-11-24 21:53:32,947 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1709 transitions. Word has length 5 [2023-11-24 21:53:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:32,948 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 1709 transitions. [2023-11-24 21:53:32,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 21:53:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1709 transitions. [2023-11-24 21:53:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 21:53:32,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:32,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:32,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:33,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:33,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:33,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash 9598878, now seen corresponding path program 1 times [2023-11-24 21:53:33,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:33,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037474713] [2023-11-24 21:53:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:33,153 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 21:53:33,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:33,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:33,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:33,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:53:33,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:33,386 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 21:53:33,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:33,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:33,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037474713] [2023-11-24 21:53:33,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037474713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:33,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:33,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:53:33,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305536648] [2023-11-24 21:53:33,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:33,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:53:33,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:33,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:53:33,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:33,390 INFO L87 Difference]: Start difference. First operand 1417 states and 1709 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) 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 21:53:34,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:34,808 INFO L93 Difference]: Finished difference Result 1378 states and 1669 transitions. [2023-11-24 21:53:34,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:53:34,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 21:53:34,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:34,817 INFO L225 Difference]: With dead ends: 1378 [2023-11-24 21:53:34,817 INFO L226 Difference]: Without dead ends: 1378 [2023-11-24 21:53:34,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:34,818 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 70 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:34,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2169 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 21:53:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2023-11-24 21:53:34,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1378. [2023-11-24 21:53:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 750 states have (on average 2.1826666666666665) internal successors, (1637), 1369 states have internal predecessors, (1637), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:34,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 1669 transitions. [2023-11-24 21:53:34,875 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 1669 transitions. Word has length 10 [2023-11-24 21:53:34,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:34,876 INFO L495 AbstractCegarLoop]: Abstraction has 1378 states and 1669 transitions. [2023-11-24 21:53:34,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 21:53:34,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 1669 transitions. [2023-11-24 21:53:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 21:53:34,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:34,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:34,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:35,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:35,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:35,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:35,081 INFO L85 PathProgramCache]: Analyzing trace with hash 634583864, now seen corresponding path program 1 times [2023-11-24 21:53:35,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:35,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587757063] [2023-11-24 21:53:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:35,083 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 21:53:35,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:35,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:35,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:35,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:53:35,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:35,329 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 21:53:35,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:35,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:35,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587757063] [2023-11-24 21:53:35,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587757063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:35,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:35,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:53:35,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971735468] [2023-11-24 21:53:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:35,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:53:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:35,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:53:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:53:35,333 INFO L87 Difference]: Start difference. First operand 1378 states and 1669 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 21:53:37,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:37,283 INFO L93 Difference]: Finished difference Result 1364 states and 1648 transitions. [2023-11-24 21:53:37,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:53:37,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2023-11-24 21:53:37,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:37,292 INFO L225 Difference]: With dead ends: 1364 [2023-11-24 21:53:37,292 INFO L226 Difference]: Without dead ends: 1364 [2023-11-24 21:53:37,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 21:53:37,293 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 58 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:37,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3210 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-24 21:53:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2023-11-24 21:53:37,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1363. [2023-11-24 21:53:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 749 states have (on average 2.156208277703605) internal successors, (1615), 1354 states have internal predecessors, (1615), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:37,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1647 transitions. [2023-11-24 21:53:37,328 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1647 transitions. Word has length 12 [2023-11-24 21:53:37,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:37,328 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 1647 transitions. [2023-11-24 21:53:37,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 21:53:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1647 transitions. [2023-11-24 21:53:37,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 21:53:37,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:37,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:37,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:37,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:37,533 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:37,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:37,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1624158822, now seen corresponding path program 1 times [2023-11-24 21:53:37,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:37,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542173585] [2023-11-24 21:53:37,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:37,534 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 21:53:37,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:37,535 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:37,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:37,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:53:37,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:37,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-11-24 21:53:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:53:37,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:37,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:37,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542173585] [2023-11-24 21:53:37,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542173585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:37,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:37,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:53:37,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337252019] [2023-11-24 21:53:37,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:37,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:53:37,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:37,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:53:37,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:53:37,845 INFO L87 Difference]: Start difference. First operand 1363 states and 1647 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 21:53:42,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:42,057 INFO L93 Difference]: Finished difference Result 1416 states and 1654 transitions. [2023-11-24 21:53:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:53:42,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2023-11-24 21:53:42,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:42,066 INFO L225 Difference]: With dead ends: 1416 [2023-11-24 21:53:42,066 INFO L226 Difference]: Without dead ends: 1416 [2023-11-24 21:53:42,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 21:53:42,067 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 977 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:42,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1267 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-24 21:53:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2023-11-24 21:53:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1359. [2023-11-24 21:53:42,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 749 states have (on average 2.15086782376502) internal successors, (1611), 1350 states have internal predecessors, (1611), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1643 transitions. [2023-11-24 21:53:42,102 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1643 transitions. Word has length 26 [2023-11-24 21:53:42,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:42,103 INFO L495 AbstractCegarLoop]: Abstraction has 1359 states and 1643 transitions. [2023-11-24 21:53:42,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 21:53:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1643 transitions. [2023-11-24 21:53:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 21:53:42,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:42,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:42,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:42,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:42,308 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 750 more)] === [2023-11-24 21:53:42,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1624158823, now seen corresponding path program 1 times [2023-11-24 21:53:42,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:53:42,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115406638] [2023-11-24 21:53:42,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:42,309 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 21:53:42,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:53:42,310 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:42,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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 21:53:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:42,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:53:42,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:53:42,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-24 21:53:42,764 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 21:53:42,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:53:42,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:53:42,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115406638] [2023-11-24 21:53:42,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115406638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:42,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:42,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:53:42,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098812933] [2023-11-24 21:53:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:42,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:53:42,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:53:42,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:53:42,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:53:42,767 INFO L87 Difference]: Start difference. First operand 1359 states and 1643 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 21:53:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:48,681 INFO L93 Difference]: Finished difference Result 1504 states and 1658 transitions. [2023-11-24 21:53:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:53:48,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2023-11-24 21:53:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:48,691 INFO L225 Difference]: With dead ends: 1504 [2023-11-24 21:53:48,691 INFO L226 Difference]: Without dead ends: 1504 [2023-11-24 21:53:48,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 21:53:48,692 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 393 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:48,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1938 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-24 21:53:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2023-11-24 21:53:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1355. [2023-11-24 21:53:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 749 states have (on average 2.145527369826435) internal successors, (1607), 1346 states have internal predecessors, (1607), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-24 21:53:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1639 transitions. [2023-11-24 21:53:48,725 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1639 transitions. Word has length 26 [2023-11-24 21:53:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:48,725 INFO L495 AbstractCegarLoop]: Abstraction has 1355 states and 1639 transitions. [2023-11-24 21:53:48,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 21:53:48,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1639 transitions. [2023-11-24 21:53:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-24 21:53:48,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:48,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:48,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99464b55-554a-4621-81da-7d516de8dff7/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