./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 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_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ --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 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:34:13,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:34:13,749 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-23 22:34:13,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:34:13,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:34:13,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:34:13,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:34:13,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:34:13,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:34:13,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:34:13,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:34:13,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:34:13,808 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:34:13,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:34:13,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:34:13,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:34:13,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:34:13,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:34:13,813 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:34:13,813 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:34:13,813 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:34:13,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:34:13,815 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:34:13,815 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:34:13,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:34:13,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:34:13,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:34:13,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:34:13,818 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:34:13,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:34:13,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:34:13,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:34:13,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:34:13,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:34:13,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:34:13,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:34:13,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:34:13,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:34:13,822 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:34:13,823 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_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 [2023-11-23 22:34:14,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:34:14,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:34:14,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:34:14,209 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:34:14,210 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:34:14,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2023-11-23 22:34:17,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:34:17,746 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:34:17,747 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2023-11-23 22:34:17,791 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data/6312261c8/ab776581efa44441b6b1b53ba18b3681/FLAG75d272e47 [2023-11-23 22:34:17,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data/6312261c8/ab776581efa44441b6b1b53ba18b3681 [2023-11-23 22:34:17,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:34:17,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:34:17,823 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:17,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:34:17,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:34:17,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:17" (1/1) ... [2023-11-23 22:34:17,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c64cc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:17, skipping insertion in model container [2023-11-23 22:34:17,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:17" (1/1) ... [2023-11-23 22:34:17,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:34:19,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:19,864 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) [2023-11-23 22:34:19,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10d4e8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19, skipping insertion in model container [2023-11-23 22:34:19,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:19,866 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 22:34:19,868 INFO L158 Benchmark]: Toolchain (without parser) took 2047.79ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.1MB in the beginning and 154.3MB in the end (delta: -47.1MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2023-11-23 22:34:19,869 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 159.4MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:34:19,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2043.45ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.1MB in the beginning and 154.3MB in the end (delta: -47.2MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2023-11-23 22:34:19,873 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 159.4MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2043.45ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.1MB in the beginning and 154.3MB in the end (delta: -47.2MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2975]: 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_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ --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 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:34:22,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:34:22,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-23 22:34:22,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:34:22,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:34:22,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:34:22,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:34:22,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:34:22,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:34:22,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:34:22,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:34:22,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:34:22,782 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:34:22,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:34:22,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:34:22,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:34:22,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:34:22,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:34:22,786 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:34:22,787 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:34:22,788 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:34:22,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:34:22,789 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:34:22,790 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:34:22,790 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:34:22,791 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:34:22,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:34:22,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:34:22,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:34:22,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:34:22,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:34:22,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:34:22,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:34:22,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:34:22,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:34:22,796 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:34:22,797 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:34:22,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:34:22,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:34:22,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:34:22,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:34:22,799 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:34:22,799 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_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 [2023-11-23 22:34:23,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:34:23,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:34:23,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:34:23,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:34:23,255 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:34:23,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2023-11-23 22:34:26,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:34:26,984 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:34:26,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2023-11-23 22:34:27,029 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data/765b11848/43c7be0e737347418a105ae931c01c80/FLAG24c034cda [2023-11-23 22:34:27,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/data/765b11848/43c7be0e737347418a105ae931c01c80 [2023-11-23 22:34:27,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:34:27,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:34:27,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:27,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:34:27,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:34:27,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:27" (1/1) ... [2023-11-23 22:34:27,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2392702b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:27, skipping insertion in model container [2023-11-23 22:34:27,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:27" (1/1) ... [2023-11-23 22:34:27,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:34:28,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:28,737 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 22:34:28,791 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:34:29,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:29,039 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:34:29,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:29,509 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:34:29,517 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:34:29,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29 WrapperNode [2023-11-23 22:34:29,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:29,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:34:29,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:34:29,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:34:29,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,744 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985 [2023-11-23 22:34:29,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:34:29,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:34:29,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:34:29,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:34:29,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:34:29,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:34:29,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:34:29,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:34:29,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (1/1) ... [2023-11-23 22:34:29,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:34:29,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:34:29,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:34:29,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:34:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-23 22:34:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-23 22:34:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-23 22:34:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-23 22:34:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:34:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-23 22:34:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 22:34:29,995 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 22:34:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:34:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-23 22:34:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 22:34:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-23 22:34:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 22:34:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 22:34:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:34:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-23 22:34:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-23 22:34:29,998 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-23 22:34:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-23 22:34:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-23 22:34:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:34:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-23 22:34:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-23 22:34:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:34:30,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:34:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 22:34:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 22:34:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-23 22:34:30,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-23 22:34:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-23 22:34:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-23 22:34:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:34:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:34:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-23 22:34:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-23 22:34:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-23 22:34:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 22:34:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-23 22:34:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 22:34:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:34:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:34:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 22:34:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 22:34:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:34:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:34:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 22:34:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 22:34:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-23 22:34:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-23 22:34:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-23 22:34:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 22:34:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-23 22:34:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 22:34:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 22:34:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 22:34:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 22:34:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 22:34:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 22:34:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 22:34:30,010 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 22:34:30,010 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-23 22:34:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-23 22:34:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-23 22:34:30,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-23 22:34:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-23 22:34:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-23 22:34:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-23 22:34:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-23 22:34:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-23 22:34:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-23 22:34:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-23 22:34:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-23 22:34:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-23 22:34:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 22:34:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 22:34:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-23 22:34:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-23 22:34:30,439 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:34:30,442 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:34:35,109 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:34:35,324 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:34:35,324 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:34:35,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:35 BoogieIcfgContainer [2023-11-23 22:34:35,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:34:35,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:34:35,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:34:35,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:34:35,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:27" (1/3) ... [2023-11-23 22:34:35,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f90c33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:35, skipping insertion in model container [2023-11-23 22:34:35,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:29" (2/3) ... [2023-11-23 22:34:35,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f90c33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:35, skipping insertion in model container [2023-11-23 22:34:35,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:35" (3/3) ... [2023-11-23 22:34:35,337 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb.i [2023-11-23 22:34:35,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:34:35,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2023-11-23 22:34:35,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:34:35,449 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;@5170882c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:34:35,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2023-11-23 22:34:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 293 states have (on average 1.993174061433447) internal successors, (584), 504 states have internal predecessors, (584), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-23 22:34:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 22:34:35,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:35,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 22:34:35,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:34:35,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash 40375456, now seen corresponding path program 1 times [2023-11-23 22:34:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:34:35,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637510152] [2023-11-23 22:34:35,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:35,500 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 [2023-11-23 22:34:35,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:34:35,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:34:35,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:36,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:34:36,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:34:36,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:36,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:34:36,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:34:36,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637510152] [2023-11-23 22:34:36,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637510152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:36,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:36,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:34:36,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010253904] [2023-11-23 22:34:36,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:36,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:34:36,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:34:36,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:34:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:34:36,294 INFO L87 Difference]: Start difference. First operand has 603 states, 293 states have (on average 1.993174061433447) internal successors, (584), 504 states have internal predecessors, (584), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:34:38,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:34:40,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:34:42,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:34:46,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:34:46,659 INFO L93 Difference]: Finished difference Result 1091 states and 1328 transitions. [2023-11-23 22:34:46,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:34:46,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 22:34:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:34:46,683 INFO L225 Difference]: With dead ends: 1091 [2023-11-23 22:34:46,683 INFO L226 Difference]: Without dead ends: 1089 [2023-11-23 22:34:46,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:34:46,688 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 632 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:34:46,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1970 Invalid, 1256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1249 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2023-11-23 22:34:46,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-11-23 22:34:46,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 883. [2023-11-23 22:34:46,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 490 states have (on average 1.969387755102041) internal successors, (965), 712 states have internal predecessors, (965), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-23 22:34:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1241 transitions. [2023-11-23 22:34:46,832 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1241 transitions. Word has length 4 [2023-11-23 22:34:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:34:46,832 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1241 transitions. [2023-11-23 22:34:46,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:34:46,833 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1241 transitions. [2023-11-23 22:34:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 22:34:46,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:46,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 22:34:46,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:47,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:47,040 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:34:47,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:47,041 INFO L85 PathProgramCache]: Analyzing trace with hash 40375457, now seen corresponding path program 1 times [2023-11-23 22:34:47,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:34:47,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894476673] [2023-11-23 22:34:47,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:47,043 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 [2023-11-23 22:34:47,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:34:47,044 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:34:47,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:47,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:34:47,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:34:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:47,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:34:47,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:34:47,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894476673] [2023-11-23 22:34:47,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894476673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:47,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:47,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:34:47,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179333586] [2023-11-23 22:34:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:47,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:34:47,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:34:47,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:34:47,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:34:47,748 INFO L87 Difference]: Start difference. First operand 883 states and 1241 transitions. Second operand has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:34:49,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:34:51,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:34:53,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:34:57,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:34:57,858 INFO L93 Difference]: Finished difference Result 1004 states and 1322 transitions. [2023-11-23 22:34:57,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:34:57,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 22:34:57,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:34:57,868 INFO L225 Difference]: With dead ends: 1004 [2023-11-23 22:34:57,868 INFO L226 Difference]: Without dead ends: 1004 [2023-11-23 22:34:57,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:34:57,870 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 245 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:34:57,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 2156 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1002 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2023-11-23 22:34:57,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2023-11-23 22:34:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 946. [2023-11-23 22:34:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 521 states have (on average 1.9289827255278311) internal successors, (1005), 744 states have internal predecessors, (1005), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-23 22:34:57,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1319 transitions. [2023-11-23 22:34:57,926 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1319 transitions. Word has length 4 [2023-11-23 22:34:57,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:34:57,926 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1319 transitions. [2023-11-23 22:34:57,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:34:57,927 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1319 transitions. [2023-11-23 22:34:57,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:34:57,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:57,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:57,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:58,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:58,133 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:34:58,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1266514677, now seen corresponding path program 1 times [2023-11-23 22:34:58,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:34:58,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520170398] [2023-11-23 22:34:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:58,135 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 [2023-11-23 22:34:58,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:34:58,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:34:58,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:58,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:34:58,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:34:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:58,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:34:58,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:34:58,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520170398] [2023-11-23 22:34:58,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520170398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:58,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:58,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:34:58,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355385083] [2023-11-23 22:34:58,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:58,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:34:58,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:34:58,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:34:58,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:34:58,760 INFO L87 Difference]: Start difference. First operand 946 states and 1319 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:35:00,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:02,747 INFO L93 Difference]: Finished difference Result 1145 states and 1399 transitions. [2023-11-23 22:35:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:02,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-11-23 22:35:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:02,757 INFO L225 Difference]: With dead ends: 1145 [2023-11-23 22:35:02,757 INFO L226 Difference]: Without dead ends: 1145 [2023-11-23 22:35:02,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:02,759 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 609 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:02,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1029 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2023-11-23 22:35:02,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2023-11-23 22:35:02,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 945. [2023-11-23 22:35:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 521 states have (on average 1.9193857965451055) internal successors, (1000), 743 states have internal predecessors, (1000), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-23 22:35:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1314 transitions. [2023-11-23 22:35:02,832 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1314 transitions. Word has length 9 [2023-11-23 22:35:02,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:02,832 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1314 transitions. [2023-11-23 22:35:02,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:35:02,833 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1314 transitions. [2023-11-23 22:35:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:35:02,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:02,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:02,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:03,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:03,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:35:03,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:03,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1266514676, now seen corresponding path program 1 times [2023-11-23 22:35:03,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:35:03,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851873352] [2023-11-23 22:35:03,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:03,042 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 [2023-11-23 22:35:03,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:35:03,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:35:03,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:03,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:35:03,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:35:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:03,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:35:03,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:35:03,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851873352] [2023-11-23 22:35:03,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851873352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:03,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:03,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:03,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599702964] [2023-11-23 22:35:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:03,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:35:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:35:03,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:35:03,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:03,739 INFO L87 Difference]: Start difference. First operand 945 states and 1314 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:35:05,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:07,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:10,275 INFO L93 Difference]: Finished difference Result 1008 states and 1326 transitions. [2023-11-23 22:35:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:35:10,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-11-23 22:35:10,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:10,284 INFO L225 Difference]: With dead ends: 1008 [2023-11-23 22:35:10,284 INFO L226 Difference]: Without dead ends: 1008 [2023-11-23 22:35:10,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:35:10,290 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 244 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:10,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1245 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-11-23 22:35:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2023-11-23 22:35:10,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 948. [2023-11-23 22:35:10,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 524 states have (on average 1.9141221374045803) internal successors, (1003), 746 states have internal predecessors, (1003), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-23 22:35:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1317 transitions. [2023-11-23 22:35:10,368 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1317 transitions. Word has length 9 [2023-11-23 22:35:10,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:10,368 INFO L495 AbstractCegarLoop]: Abstraction has 948 states and 1317 transitions. [2023-11-23 22:35:10,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:35:10,369 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1317 transitions. [2023-11-23 22:35:10,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 22:35:10,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:10,370 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:10,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:10,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:10,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:35:10,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1643938270, now seen corresponding path program 1 times [2023-11-23 22:35:10,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:35:10,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586479601] [2023-11-23 22:35:10,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:10,578 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 [2023-11-23 22:35:10,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:35:10,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:35:10,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5492299b-a8af-4a2b-8338-41de8e146237/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:11,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:35:11,127 INFO L285 TraceCheckSpWp]: Computing forward predicates...