./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx --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 b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:05:32,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:05:33,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:05:33,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:05:33,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:05:33,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:05:33,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:05:33,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:05:33,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:05:33,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:05:33,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:05:33,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:05:33,106 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:05:33,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:05:33,108 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:05:33,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:05:33,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:05:33,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:05:33,110 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:05:33,110 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:05:33,110 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:05:33,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:05:33,112 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:05:33,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:05:33,112 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:05:33,113 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:05:33,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:05:33,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:05:33,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:05:33,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:05:33,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:33,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:05:33,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:05:33,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:05:33,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:05:33,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:05:33,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:05:33,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:05:33,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:05:33,117 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_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2023-11-21 22:05:33,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:05:33,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:05:33,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:05:33,419 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:05:33,420 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:05:33,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-21 22:05:36,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:37,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:37,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-21 22:05:37,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data/8e7053ea6/af37295f720c4776b1a511a542ccd726/FLAG42121e90b [2023-11-21 22:05:37,128 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data/8e7053ea6/af37295f720c4776b1a511a542ccd726 [2023-11-21 22:05:37,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:37,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:37,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:37,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:37,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:37,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:37" (1/1) ... [2023-11-21 22:05:37,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626f698e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:37, skipping insertion in model container [2023-11-21 22:05:37,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:37" (1/1) ... [2023-11-21 22:05:37,268 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:38,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:39,000 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) [2023-11-21 22:05:39,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f3df5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:39, skipping insertion in model container [2023-11-21 22:05:39,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:39,002 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:05:39,005 INFO L158 Benchmark]: Toolchain (without parser) took 1860.87ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 92.4MB in the beginning and 139.0MB in the end (delta: -46.6MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-21 22:05:39,005 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 142.6MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:05:39,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1857.65ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 92.4MB in the beginning and 139.0MB in the end (delta: -46.6MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2023-11-21 22:05:39,009 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 142.6MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1857.65ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 92.4MB in the beginning and 139.0MB in the end (delta: -46.6MB). Peak memory consumption was 46.6MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx --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 b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:05:41,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:05:41,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:05:41,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:05:41,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:05:41,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:05:41,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:05:41,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:05:41,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:05:41,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:05:41,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:05:41,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:05:41,671 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:05:41,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:05:41,673 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:05:41,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:05:41,674 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:05:41,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:05:41,675 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:05:41,675 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:05:41,676 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:05:41,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:05:41,680 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:05:41,680 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:05:41,680 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:05:41,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:05:41,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:05:41,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:05:41,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:05:41,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:05:41,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:05:41,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:05:41,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:41,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:05:41,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:05:41,685 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:05:41,686 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:05:41,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:05:41,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:05:41,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:05:41,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:05:41,689 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:05:41,689 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_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2023-11-21 22:05:42,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:05:42,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:05:42,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:05:42,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:05:42,105 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:05:42,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-21 22:05:45,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:45,801 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:45,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2023-11-21 22:05:45,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data/560dce685/4b6b0c34c88e43af99b8faabda3338ee/FLAGb1fc4e204 [2023-11-21 22:05:45,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/data/560dce685/4b6b0c34c88e43af99b8faabda3338ee [2023-11-21 22:05:45,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:45,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:45,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:45,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:45,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:45,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:45" (1/1) ... [2023-11-21 22:05:45,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d90c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:45, skipping insertion in model container [2023-11-21 22:05:45,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:45" (1/1) ... [2023-11-21 22:05:46,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:47,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:47,596 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:05:47,637 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:47,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:48,009 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:05:48,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:48,476 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:05:48,485 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:05:48,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48 WrapperNode [2023-11-21 22:05:48,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:48,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:48,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:05:48,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:05:48,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,727 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 39, statements flattened = 997 [2023-11-21 22:05:48,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:48,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:05:48,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:05:48,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:05:48,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:05:48,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:05:48,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:05:48,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:05:48,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (1/1) ... [2023-11-21 22:05:48,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:48,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:49,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:05:49,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:05:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-21 22:05:49,108 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-21 22:05:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-21 22:05:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-21 22:05:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:05:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-21 22:05:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:05:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:05:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:05:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-21 22:05:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:05:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-21 22:05:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-21 22:05:49,112 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-21 22:05:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:05:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-21 22:05:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-21 22:05:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-21 22:05:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-21 22:05:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-21 22:05:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:05:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-21 22:05:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-21 22:05:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:05:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:05:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:05:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:05:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-21 22:05:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-21 22:05:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-21 22:05:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-21 22:05:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:05:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:05:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-21 22:05:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-21 22:05:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-21 22:05:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:05:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-21 22:05:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:05:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:05:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:05:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-21 22:05:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-21 22:05:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:05:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:05:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 22:05:49,122 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 22:05:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-21 22:05:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-21 22:05:49,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-21 22:05:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-21 22:05:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-21 22:05:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:05:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:05:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:05:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:05:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-21 22:05:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-21 22:05:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-21 22:05:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-21 22:05:49,125 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-21 22:05:49,125 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-21 22:05:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-21 22:05:49,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-21 22:05:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-21 22:05:49,127 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-21 22:05:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-21 22:05:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-21 22:05:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-21 22:05:49,128 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-21 22:05:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-21 22:05:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-21 22:05:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-21 22:05:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-21 22:05:49,129 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-21 22:05:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-21 22:05:49,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-21 22:05:49,513 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:05:49,517 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:05:55,682 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:05:56,164 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:05:56,164 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 22:05:56,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:56 BoogieIcfgContainer [2023-11-21 22:05:56,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:05:56,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:05:56,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:05:56,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:05:56,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:05:45" (1/3) ... [2023-11-21 22:05:56,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f0780f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:56, skipping insertion in model container [2023-11-21 22:05:56,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:48" (2/3) ... [2023-11-21 22:05:56,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f0780f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:56, skipping insertion in model container [2023-11-21 22:05:56,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:56" (3/3) ... [2023-11-21 22:05:56,178 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2023-11-21 22:05:56,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:05:56,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 206 error locations. [2023-11-21 22:05:56,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:05:56,287 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;@55372185, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:05:56,287 INFO L358 AbstractCegarLoop]: Starting to check reachability of 206 error locations. [2023-11-21 22:05:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 580 states, 269 states have (on average 2.003717472118959) internal successors, (539), 481 states have internal predecessors, (539), 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) [2023-11-21 22:05:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:05:56,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:56,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:05:56,304 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 203 more)] === [2023-11-21 22:05:56,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash 40956861, now seen corresponding path program 1 times [2023-11-21 22:05:56,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:56,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347635850] [2023-11-21 22:05:56,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:56,330 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 [2023-11-21 22:05:56,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:56,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:56,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:56,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:05:56,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:57,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:57,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:57,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347635850] [2023-11-21 22:05:57,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347635850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:57,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:57,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:05:57,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362272652] [2023-11-21 22:05:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:57,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:05:57,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:57,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:05:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:05:57,111 INFO L87 Difference]: Start difference. First operand has 580 states, 269 states have (on average 2.003717472118959) internal successors, (539), 481 states have internal predecessors, (539), 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) [2023-11-21 22:05:59,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:06:01,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:06:03,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:06:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:06:07,742 INFO L93 Difference]: Finished difference Result 1049 states and 1249 transitions. [2023-11-21 22:06:07,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:06:07,744 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 [2023-11-21 22:06:07,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:06:07,765 INFO L225 Difference]: With dead ends: 1049 [2023-11-21 22:06:07,765 INFO L226 Difference]: Without dead ends: 1047 [2023-11-21 22:06:07,767 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 [2023-11-21 22:06:07,770 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 590 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:06:07,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 1854 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1304 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2023-11-21 22:06:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-11-21 22:06:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 853. [2023-11-21 22:06:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 459 states have (on average 1.9891067538126361) internal successors, (913), 682 states have internal predecessors, (913), 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) [2023-11-21 22:06:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1189 transitions. [2023-11-21 22:06:07,898 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1189 transitions. Word has length 4 [2023-11-21 22:06:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:06:07,899 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1189 transitions. [2023-11-21 22:06:07,899 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) [2023-11-21 22:06:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1189 transitions. [2023-11-21 22:06:07,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:06:07,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:06:07,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:06:07,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:08,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:08,106 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 203 more)] === [2023-11-21 22:06:08,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:08,106 INFO L85 PathProgramCache]: Analyzing trace with hash 40956862, now seen corresponding path program 1 times [2023-11-21 22:06:08,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:06:08,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323868587] [2023-11-21 22:06:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:08,108 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 [2023-11-21 22:06:08,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:06:08,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:06:08,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:06:08,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:06:08,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:06:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:06:08,889 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:06:08,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:06:08,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323868587] [2023-11-21 22:06:08,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323868587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:06:08,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:06:08,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:06:08,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370166212] [2023-11-21 22:06:08,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:06:08,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:06:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:06:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:06:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:06:08,893 INFO L87 Difference]: Start difference. First operand 853 states and 1189 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) [2023-11-21 22:06:10,924 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 [] [2023-11-21 22:06:12,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:06:14,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:06:19,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:06:19,410 INFO L93 Difference]: Finished difference Result 976 states and 1272 transitions. [2023-11-21 22:06:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:06:19,411 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 [2023-11-21 22:06:19,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:06:19,423 INFO L225 Difference]: With dead ends: 976 [2023-11-21 22:06:19,424 INFO L226 Difference]: Without dead ends: 976 [2023-11-21 22:06:19,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:06:19,429 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 240 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:06:19,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1947 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1036 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2023-11-21 22:06:19,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-21 22:06:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 916. [2023-11-21 22:06:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 490 states have (on average 1.9469387755102041) internal successors, (954), 714 states have internal predecessors, (954), 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) [2023-11-21 22:06:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1268 transitions. [2023-11-21 22:06:19,522 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1268 transitions. Word has length 4 [2023-11-21 22:06:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:06:19,523 INFO L495 AbstractCegarLoop]: Abstraction has 916 states and 1268 transitions. [2023-11-21 22:06:19,524 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) [2023-11-21 22:06:19,525 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1268 transitions. [2023-11-21 22:06:19,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:06:19,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:06:19,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:06:19,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:06:19,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:19,733 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 203 more)] === [2023-11-21 22:06:19,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:19,733 INFO L85 PathProgramCache]: Analyzing trace with hash 882019358, now seen corresponding path program 1 times [2023-11-21 22:06:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:06:19,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413861914] [2023-11-21 22:06:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:19,735 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 [2023-11-21 22:06:19,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:06:19,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:06:19,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:06:20,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:06:20,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:06:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:06:20,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:06:20,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:06:20,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413861914] [2023-11-21 22:06:20,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413861914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:06:20,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:06:20,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:06:20,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699115199] [2023-11-21 22:06:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:06:20,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:06:20,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:06:20,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:06:20,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:06:20,347 INFO L87 Difference]: Start difference. First operand 916 states and 1268 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) [2023-11-21 22:06:22,374 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 [] [2023-11-21 22:06:24,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:06:24,367 INFO L93 Difference]: Finished difference Result 1103 states and 1321 transitions. [2023-11-21 22:06:24,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:06:24,368 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 [2023-11-21 22:06:24,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:06:24,376 INFO L225 Difference]: With dead ends: 1103 [2023-11-21 22:06:24,376 INFO L226 Difference]: Without dead ends: 1103 [2023-11-21 22:06:24,376 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 [2023-11-21 22:06:24,378 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 567 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:06:24,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 930 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2023-11-21 22:06:24,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2023-11-21 22:06:24,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 915. [2023-11-21 22:06:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 490 states have (on average 1.936734693877551) internal successors, (949), 713 states have internal predecessors, (949), 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) [2023-11-21 22:06:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1263 transitions. [2023-11-21 22:06:24,425 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1263 transitions. Word has length 9 [2023-11-21 22:06:24,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:06:24,425 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1263 transitions. [2023-11-21 22:06:24,425 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) [2023-11-21 22:06:24,426 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1263 transitions. [2023-11-21 22:06:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:06:24,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:06:24,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:06:24,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:24,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:24,634 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 203 more)] === [2023-11-21 22:06:24,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:24,634 INFO L85 PathProgramCache]: Analyzing trace with hash 882019359, now seen corresponding path program 1 times [2023-11-21 22:06:24,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:06:24,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81272625] [2023-11-21 22:06:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:24,636 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 [2023-11-21 22:06:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:06:24,637 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:06:24,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08433bbd-ec76-4c3c-87ff-3b8a71e916f1/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:06:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:06:25,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:06:25,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:06:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:06:25,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:06:25,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:06:25,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81272625] [2023-11-21 22:06:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81272625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:06:25,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:06:25,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:06:25,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793015696] [2023-11-21 22:06:25,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:06:25,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:06:25,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:06:25,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:06:25,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:06:25,440 INFO L87 Difference]: Start difference. First operand 915 states and 1263 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) [2023-11-21 22:06:27,475 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 [] [2023-11-21 22:06:29,481 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 []