./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --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 cd6b300b335accb35f3a48bfd0f387908f589dfb4e32ea4d19ee0b855e6625b4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:40:12,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:40:12,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:40:12,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:40:12,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:40:12,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:40:12,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:40:12,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:40:12,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:40:12,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:40:12,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:40:12,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:40:12,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:40:12,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:40:12,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:40:12,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:40:12,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:40:12,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:40:12,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:40:12,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:40:12,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:40:12,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:40:12,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:40:12,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:40:12,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:40:12,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:40:12,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:40:12,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:40:12,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:40:12,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:40:12,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:40:12,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:40:12,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:40:12,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:40:12,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:40:12,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:40:12,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:40:12,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:40:12,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:40:12,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:40:12,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:40:12,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-17 10:40:12,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:40:12,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:40:12,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:40:12,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:40:12,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:40:12,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:40:12,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:40:12,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:40:12,930 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:40:12,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:40:12,931 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:40:12,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:40:12,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:40:12,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:40:12,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:40:12,932 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:40:12,933 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:40:12,933 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:40:12,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:40:12,933 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:40:12,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:40:12,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:40:12,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:40:12,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:40:12,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:40:12,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:40:12,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:40:12,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:40:12,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:40:12,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:40:12,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd6b300b335accb35f3a48bfd0f387908f589dfb4e32ea4d19ee0b855e6625b4 [2022-10-17 10:40:13,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:40:13,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:40:13,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:40:13,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:40:13,388 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:40:13,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i [2022-10-17 10:40:13,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/5a10ccc7f/eff23e1bf5514536ae8e76384b82ae8c/FLAGd5fd7f027 [2022-10-17 10:40:14,302 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:40:14,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i [2022-10-17 10:40:14,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/5a10ccc7f/eff23e1bf5514536ae8e76384b82ae8c/FLAGd5fd7f027 [2022-10-17 10:40:14,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/5a10ccc7f/eff23e1bf5514536ae8e76384b82ae8c [2022-10-17 10:40:14,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:40:14,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:40:14,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:14,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:40:14,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:40:14,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:14" (1/1) ... [2022-10-17 10:40:14,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2e822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:14, skipping insertion in model container [2022-10-17 10:40:14,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:14" (1/1) ... [2022-10-17 10:40:14,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:40:14,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:40:15,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i[457,470] [2022-10-17 10:40:17,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:17,253 ERROR L326 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) [2022-10-17 10:40:17,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@423a4e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:17, skipping insertion in model container [2022-10-17 10:40:17,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:17,255 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 10:40:17,258 INFO L158 Benchmark]: Toolchain (without parser) took 2401.54ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 62.9MB in the beginning and 109.8MB in the end (delta: -47.0MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-10-17 10:40:17,260 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:40:17,262 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2393.90ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 62.7MB in the beginning and 109.8MB in the end (delta: -47.2MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-10-17 10:40:17,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory is still 63.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2393.90ms. Allocated memory was 88.1MB in the beginning and 140.5MB in the end (delta: 52.4MB). Free memory was 62.7MB in the beginning and 109.8MB in the end (delta: -47.2MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2977]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --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 cd6b300b335accb35f3a48bfd0f387908f589dfb4e32ea4d19ee0b855e6625b4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:40:19,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:40:19,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:40:19,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:40:19,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:40:19,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:40:19,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:40:19,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:40:19,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:40:19,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:40:19,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:40:19,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:40:19,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:40:19,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:40:19,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:40:19,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:40:19,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:40:19,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:40:19,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:40:19,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:40:19,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:40:19,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:40:19,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:40:19,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:40:19,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:40:19,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:40:19,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:40:19,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:40:19,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:40:19,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:40:19,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:40:19,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:40:19,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:40:19,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:40:19,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:40:19,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:40:19,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:40:19,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:40:19,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:40:19,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:40:19,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:40:19,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-10-17 10:40:19,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:40:19,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:40:20,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:40:20,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:40:20,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:40:20,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:40:20,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:40:20,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:40:20,004 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:40:20,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:40:20,006 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:40:20,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:40:20,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:40:20,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:40:20,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:40:20,008 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:40:20,008 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:40:20,008 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:40:20,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:40:20,009 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:40:20,009 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:40:20,009 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:40:20,009 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:40:20,010 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:40:20,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:40:20,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:40:20,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:40:20,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:40:20,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:40:20,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:40:20,012 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:40:20,012 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:40:20,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:40:20,013 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd6b300b335accb35f3a48bfd0f387908f589dfb4e32ea4d19ee0b855e6625b4 [2022-10-17 10:40:20,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:40:20,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:40:20,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:40:20,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:40:20,501 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:40:20,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i [2022-10-17 10:40:20,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/45184fdbe/2ff0ecb6a4024b6b9073434300fba17b/FLAGb69c3b056 [2022-10-17 10:40:21,583 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:40:21,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i [2022-10-17 10:40:21,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/45184fdbe/2ff0ecb6a4024b6b9073434300fba17b/FLAGb69c3b056 [2022-10-17 10:40:21,649 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/data/45184fdbe/2ff0ecb6a4024b6b9073434300fba17b [2022-10-17 10:40:21,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:40:21,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:40:21,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:21,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:40:21,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:40:21,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:21" (1/1) ... [2022-10-17 10:40:21,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e99e8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:21, skipping insertion in model container [2022-10-17 10:40:21,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:40:21" (1/1) ... [2022-10-17 10:40:21,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:40:21,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:40:22,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i[457,470] [2022-10-17 10:40:23,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:23,409 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 10:40:23,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:40:23,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i[457,470] [2022-10-17 10:40:23,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:23,687 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:40:23,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw_p.i[457,470] [2022-10-17 10:40:23,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:40:24,244 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:40:24,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24 WrapperNode [2022-10-17 10:40:24,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:40:24,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:40:24,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:40:24,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:40:24,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,464 INFO L138 Inliner]: procedures = 482, calls = 839, calls flagged for inlining = 54, calls inlined = 37, statements flattened = 970 [2022-10-17 10:40:24,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:40:24,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:40:24,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:40:24,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:40:24,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:40:24,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:40:24,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:40:24,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:40:24,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (1/1) ... [2022-10-17 10:40:24,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:40:24,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:40:24,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:40:24,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:40:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-10-17 10:40:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-10-17 10:40:24,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 10:40:24,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 10:40:24,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:40:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-10-17 10:40:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:40:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:40:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:40:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-10-17 10:40:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:40:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-10-17 10:40:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:40:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:40:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:40:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-10-17 10:40:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-10-17 10:40:24,790 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-10-17 10:40:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 10:40:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 10:40:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:40:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-10-17 10:40:24,791 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-10-17 10:40:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:40:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:40:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:40:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:40:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-10-17 10:40:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-10-17 10:40:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-10-17 10:40:24,792 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-10-17 10:40:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:40:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:40:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-10-17 10:40:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-10-17 10:40:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-10-17 10:40:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:40:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-10-17 10:40:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:40:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:40:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:40:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-17 10:40:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-17 10:40:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:40:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:40:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-17 10:40:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-17 10:40:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-10-17 10:40:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-10-17 10:40:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-10-17 10:40:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-10-17 10:40:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-10-17 10:40:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:40:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:40:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-10-17 10:40:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-10-17 10:40:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-10-17 10:40:24,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-10-17 10:40:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 10:40:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 10:40:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-10-17 10:40:24,829 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-10-17 10:40:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-10-17 10:40:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-10-17 10:40:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-10-17 10:40:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-10-17 10:40:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 10:40:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 10:40:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-10-17 10:40:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-10-17 10:40:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-10-17 10:40:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-10-17 10:40:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-10-17 10:40:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 10:40:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 10:40:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 10:40:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 10:40:25,413 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:40:25,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:40:31,777 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:40:31,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:40:31,807 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 10:40:31,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:31 BoogieIcfgContainer [2022-10-17 10:40:31,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:40:31,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:40:31,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:40:31,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:40:31,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:40:21" (1/3) ... [2022-10-17 10:40:31,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b9ba97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:40:31, skipping insertion in model container [2022-10-17 10:40:31,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:40:24" (2/3) ... [2022-10-17 10:40:31,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b9ba97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:40:31, skipping insertion in model container [2022-10-17 10:40:31,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:40:31" (3/3) ... [2022-10-17 10:40:31,822 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw_p.i [2022-10-17 10:40:31,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:40:31,845 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2022-10-17 10:40:31,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:40:31,942 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=FINITE_AUTOMATA, 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;@250b7735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:40:31,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2022-10-17 10:40:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 666 states, 356 states have (on average 1.8202247191011236) internal successors, (648), 566 states have internal predecessors, (648), 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) [2022-10-17 10:40:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:40:31,958 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:31,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:40:31,959 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)] === [2022-10-17 10:40:31,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:31,965 INFO L85 PathProgramCache]: Analyzing trace with hash 333908101, now seen corresponding path program 1 times [2022-10-17 10:40:31,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:40:31,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620252209] [2022-10-17 10:40:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:31,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:40:31,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:40:31,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:40:31,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:40:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:32,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:40:32,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:32,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:40:32,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:40:32,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620252209] [2022-10-17 10:40:32,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620252209] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:32,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:32,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:32,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2559754] [2022-10-17 10:40:32,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:32,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:40:32,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:40:32,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:40:32,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:40:32,822 INFO L87 Difference]: Start difference. First operand has 666 states, 356 states have (on average 1.8202247191011236) internal successors, (648), 566 states have internal predecessors, (648), 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, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-17 10:40:34,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:40:36,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:40:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:40:40,739 INFO L93 Difference]: Finished difference Result 1204 states and 1443 transitions. [2022-10-17 10:40:40,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:40:40,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 5 [2022-10-17 10:40:40,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:40:40,766 INFO L225 Difference]: With dead ends: 1204 [2022-10-17 10:40:40,766 INFO L226 Difference]: Without dead ends: 1200 [2022-10-17 10:40:40,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:40:40,771 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 687 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:40:40,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2484 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1106 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-10-17 10:40:40,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-10-17 10:40:40,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 987. [2022-10-17 10:40:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 594 states have (on average 1.803030303030303) internal successors, (1071), 814 states have internal predecessors, (1071), 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) [2022-10-17 10:40:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1347 transitions. [2022-10-17 10:40:40,910 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1347 transitions. Word has length 5 [2022-10-17 10:40:40,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:40:40,911 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1347 transitions. [2022-10-17 10:40:40,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-17 10:40:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1347 transitions. [2022-10-17 10:40:40,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:40:40,915 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:40:40,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:40:40,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:40:41,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:40:41,116 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)] === [2022-10-17 10:40:41,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:40:41,117 INFO L85 PathProgramCache]: Analyzing trace with hash 333908102, now seen corresponding path program 1 times [2022-10-17 10:40:41,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:40:41,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979549933] [2022-10-17 10:40:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:40:41,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:40:41,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:40:41,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:40:41,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c6b3ec3-b1e5-41c9-8926-62d8b9e02387/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:40:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:40:41,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:40:41,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:40:41,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:40:41,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:40:41,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:40:41,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979549933] [2022-10-17 10:40:41,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979549933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:40:41,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:40:41,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:40:41,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967331251] [2022-10-17 10:40:41,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:40:41,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:40:41,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:40:41,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:40:41,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:40:41,667 INFO L87 Difference]: Start difference. First operand 987 states and 1347 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-17 10:40:43,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:40:45,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []