./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 869ef2ac3e655b6efbdfa5c05d637a0f622008da83d6042d15962fe695aee939 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:56:18,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:56:18,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:56:18,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:56:18,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:56:18,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:56:18,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:56:18,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:56:18,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:56:18,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:56:18,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:56:18,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:56:18,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:56:18,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:56:18,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:56:18,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:56:18,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:56:18,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:56:18,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:56:18,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:56:18,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:56:18,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:56:18,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:56:18,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:56:18,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:56:18,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:56:18,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:56:18,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:56:18,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:56:18,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:56:18,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:56:18,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:56:18,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:56:18,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:56:18,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:56:18,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:56:18,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:56:18,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:56:18,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:56:18,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:56:18,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:56:18,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:56:18,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:56:18,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:56:18,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:56:18,880 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:56:18,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:56:18,880 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:56:18,881 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:56:18,881 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:56:18,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:56:18,881 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:56:18,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:56:18,882 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:56:18,882 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:56:18,882 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:56:18,882 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:56:18,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:56:18,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:56:18,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:56:18,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:56:18,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:56:18,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:56:18,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:56:18,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:56:18,885 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:56:18,885 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:56:18,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:56:18,885 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:56:18,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:56:18,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:56:18,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:56:18,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:18,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:56:18,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:56:18,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:56:18,887 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:56:18,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:56:18,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:56:18,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:56:18,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:56:18,888 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 869ef2ac3e655b6efbdfa5c05d637a0f622008da83d6042d15962fe695aee939 [2021-11-03 03:56:19,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:56:19,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:56:19,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:56:19,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:56:19,157 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:56:19,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2021-11-03 03:56:19,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/03d7e73d6/c3d01b8975e14af79f4c59e4a0dd8cec/FLAG55f15deb9 [2021-11-03 03:56:19,902 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:56:19,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2021-11-03 03:56:19,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/03d7e73d6/c3d01b8975e14af79f4c59e4a0dd8cec/FLAG55f15deb9 [2021-11-03 03:56:20,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/03d7e73d6/c3d01b8975e14af79f4c59e4a0dd8cec [2021-11-03 03:56:20,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:56:20,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:56:20,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:20,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:56:20,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:56:20,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:20" (1/1) ... [2021-11-03 03:56:20,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ce986a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:20, skipping insertion in model container [2021-11-03 03:56:20,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:20" (1/1) ... [2021-11-03 03:56:20,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:56:20,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:20,521 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2021-11-03 03:56:20,531 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2021-11-03 03:56:20,535 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2021-11-03 03:56:20,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:20,556 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 03:56:20,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@575db668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:20, skipping insertion in model container [2021-11-03 03:56:20,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:20,557 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 03:56:20,560 INFO L168 Benchmark]: Toolchain (without parser) took 418.76 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 50.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:20,562 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 63.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:56:20,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.19 ms. Allocated memory is still 94.4 MB. Free memory was 62.5 MB in the beginning and 50.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:20,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 63.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 414.19 ms. Allocated memory is still 94.4 MB. Free memory was 62.5 MB in the beginning and 50.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 638]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 869ef2ac3e655b6efbdfa5c05d637a0f622008da83d6042d15962fe695aee939 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:56:22,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:56:22,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:56:22,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:56:22,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:56:22,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:56:22,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:56:22,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:56:22,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:56:22,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:56:22,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:56:22,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:56:22,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:56:22,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:56:22,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:56:22,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:56:22,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:56:22,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:56:22,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:56:22,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:56:22,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:56:22,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:56:23,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:56:23,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:56:23,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:56:23,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:56:23,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:56:23,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:56:23,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:56:23,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:56:23,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:56:23,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:56:23,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:56:23,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:56:23,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:56:23,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:56:23,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:56:23,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:56:23,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:56:23,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:56:23,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:56:23,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 03:56:23,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:56:23,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:56:23,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:56:23,060 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:56:23,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:56:23,061 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:56:23,061 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:56:23,061 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:56:23,061 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:56:23,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:56:23,062 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:56:23,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:56:23,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:56:23,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:56:23,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:56:23,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:56:23,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:56:23,064 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:56:23,064 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:56:23,064 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:56:23,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:56:23,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:56:23,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:56:23,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:56:23,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:56:23,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:56:23,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:23,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:56:23,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:56:23,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:56:23,069 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:56:23,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:56:23,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:56:23,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:56:23,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:56:23,070 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_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 869ef2ac3e655b6efbdfa5c05d637a0f622008da83d6042d15962fe695aee939 [2021-11-03 03:56:23,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:56:23,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:56:23,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:56:23,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:56:23,536 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:56:23,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2021-11-03 03:56:23,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/d30093a6e/92793366a7d84ddc81fb3117c7e96b30/FLAG5aa138588 [2021-11-03 03:56:24,229 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:56:24,230 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2021-11-03 03:56:24,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/d30093a6e/92793366a7d84ddc81fb3117c7e96b30/FLAG5aa138588 [2021-11-03 03:56:24,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/data/d30093a6e/92793366a7d84ddc81fb3117c7e96b30 [2021-11-03 03:56:24,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:56:24,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:56:24,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:24,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:56:24,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:56:24,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:24" (1/1) ... [2021-11-03 03:56:24,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24cce93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:24, skipping insertion in model container [2021-11-03 03:56:24,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:56:24" (1/1) ... [2021-11-03 03:56:24,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:56:24,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:25,092 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2021-11-03 03:56:25,105 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2021-11-03 03:56:25,110 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2021-11-03 03:56:25,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:25,133 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:56:25,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:56:25,194 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2021-11-03 03:56:25,195 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2021-11-03 03:56:25,196 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2021-11-03 03:56:25,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:25,200 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:56:25,246 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2021-11-03 03:56:25,247 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2021-11-03 03:56:25,248 WARN L228 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_92bb5055-a05a-4ba6-8341-fa70044707ad/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2021-11-03 03:56:25,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:56:25,288 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:56:25,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25 WrapperNode [2021-11-03 03:56:25,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:56:25,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:56:25,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:56:25,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:56:25,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:56:25,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:56:25,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:56:25,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:56:25,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:56:25,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:56:25,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:56:25,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:56:25,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (1/1) ... [2021-11-03 03:56:25,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:56:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:56:25,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:56:25,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:56:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:56:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:56:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:56:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:56:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:56:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:56:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:56:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:56:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:56:26,708 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:56:26,708 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-11-03 03:56:26,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:26 BoogieIcfgContainer [2021-11-03 03:56:26,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:56:26,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:56:26,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:56:26,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:56:26,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:56:24" (1/3) ... [2021-11-03 03:56:26,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4729e7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:26, skipping insertion in model container [2021-11-03 03:56:26,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:56:25" (2/3) ... [2021-11-03 03:56:26,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4729e7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:26, skipping insertion in model container [2021-11-03 03:56:26,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:26" (3/3) ... [2021-11-03 03:56:26,720 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2021-11-03 03:56:26,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:56:26,730 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 03:56:26,794 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:56:26,803 INFO L339 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:56:26,804 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 03:56:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 82 states have (on average 1.4878048780487805) internal successors, (122), 87 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:26,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 03:56:26,824 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:26,824 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:56:26,825 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 03:56:26,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:26,831 INFO L85 PathProgramCache]: Analyzing trace with hash 912087840, now seen corresponding path program 1 times [2021-11-03 03:56:26,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:26,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660739465] [2021-11-03 03:56:26,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:26,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:26,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:26,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:26,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:56:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:27,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:56:27,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:27,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:27,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:27,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660739465] [2021-11-03 03:56:27,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660739465] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:27,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:27,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:56:27,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905743011] [2021-11-03 03:56:27,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:56:27,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:56:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:56:27,163 INFO L87 Difference]: Start difference. First operand has 88 states, 82 states have (on average 1.4878048780487805) internal successors, (122), 87 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:27,189 INFO L93 Difference]: Finished difference Result 172 states and 239 transitions. [2021-11-03 03:56:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:56:27,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 03:56:27,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:27,200 INFO L225 Difference]: With dead ends: 172 [2021-11-03 03:56:27,200 INFO L226 Difference]: Without dead ends: 84 [2021-11-03 03:56:27,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:56:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-03 03:56:27,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-11-03 03:56:27,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.2784810126582278) internal successors, (101), 83 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:27,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2021-11-03 03:56:27,243 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 14 [2021-11-03 03:56:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:27,243 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2021-11-03 03:56:27,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2021-11-03 03:56:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 03:56:27,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:27,245 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:56:27,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:27,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:27,457 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 03:56:27,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash 793647061, now seen corresponding path program 1 times [2021-11-03 03:56:27,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:27,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311950370] [2021-11-03 03:56:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:27,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:27,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:27,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:27,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:56:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:27,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:56:27,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:27,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:27,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:27,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:27,746 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:27,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311950370] [2021-11-03 03:56:27,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311950370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:27,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:27,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:56:27,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488290465] [2021-11-03 03:56:27,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:56:27,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:27,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:56:27,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:56:27,757 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:27,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:27,935 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2021-11-03 03:56:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:56:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 03:56:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:27,939 INFO L225 Difference]: With dead ends: 135 [2021-11-03 03:56:27,940 INFO L226 Difference]: Without dead ends: 131 [2021-11-03 03:56:27,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:56:27,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-03 03:56:27,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88. [2021-11-03 03:56:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 87 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2021-11-03 03:56:27,973 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 14 [2021-11-03 03:56:27,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:27,973 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2021-11-03 03:56:27,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2021-11-03 03:56:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 03:56:27,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:27,975 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:56:27,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:28,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:28,194 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 03:56:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:28,195 INFO L85 PathProgramCache]: Analyzing trace with hash 795255775, now seen corresponding path program 1 times [2021-11-03 03:56:28,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:28,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980125493] [2021-11-03 03:56:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:28,196 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:28,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:28,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:28,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:56:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:28,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 03:56:28,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:28,568 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:56:28,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-11-03 03:56:28,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-03 03:56:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:28,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:28,802 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:28,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980125493] [2021-11-03 03:56:28,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980125493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:28,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:28,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 03:56:28,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746138187] [2021-11-03 03:56:28,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:56:28,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:28,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:56:28,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:56:28,805 INFO L87 Difference]: Start difference. First operand 88 states and 105 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:29,948 INFO L93 Difference]: Finished difference Result 254 states and 301 transitions. [2021-11-03 03:56:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:56:29,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 03:56:29,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:29,952 INFO L225 Difference]: With dead ends: 254 [2021-11-03 03:56:29,952 INFO L226 Difference]: Without dead ends: 175 [2021-11-03 03:56:29,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:56:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-03 03:56:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 101. [2021-11-03 03:56:29,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 100 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2021-11-03 03:56:29,969 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 14 [2021-11-03 03:56:29,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:29,970 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2021-11-03 03:56:29,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:56:29,970 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2021-11-03 03:56:29,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 03:56:29,971 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:29,971 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:56:29,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 03:56:30,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:30,185 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 03:56:30,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:30,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1115638045, now seen corresponding path program 1 times [2021-11-03 03:56:30,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:30,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153852302] [2021-11-03 03:56:30,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:30,188 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:30,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:30,191 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:30,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:56:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:56:30,454 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 03:56:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:56:30,702 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-03 03:56:30,703 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 03:56:30,704 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:56:30,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:56:30,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:56:30,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:56:30,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:56:30,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:30,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:30,926 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-03 03:56:30,929 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:56:30,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:56:30 BoogieIcfgContainer [2021-11-03 03:56:30,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:56:30,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:56:30,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:56:30,989 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:56:30,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:26" (3/4) ... [2021-11-03 03:56:30,991 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 03:56:31,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 03:56:31,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:56:31,068 INFO L168 Benchmark]: Toolchain (without parser) took 6578.14 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 52.4 MB in the beginning and 79.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:31,068 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 70.3 MB in the beginning and 70.3 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:56:31,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.45 ms. Allocated memory is still 88.1 MB. Free memory was 52.2 MB in the beginning and 57.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:31,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.21 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 53.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:31,070 INFO L168 Benchmark]: Boogie Preprocessor took 85.15 ms. Allocated memory is still 88.1 MB. Free memory was 53.5 MB in the beginning and 50.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:31,071 INFO L168 Benchmark]: RCFGBuilder took 1258.28 ms. Allocated memory is still 88.1 MB. Free memory was 50.1 MB in the beginning and 49.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:31,071 INFO L168 Benchmark]: TraceAbstraction took 4275.05 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 48.4 MB in the beginning and 84.7 MB in the end (delta: -36.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:56:31,072 INFO L168 Benchmark]: Witness Printer took 78.29 ms. Allocated memory is still 117.4 MB. Free memory was 84.7 MB in the beginning and 79.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:56:31,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 70.3 MB in the beginning and 70.3 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 796.45 ms. Allocated memory is still 88.1 MB. Free memory was 52.2 MB in the beginning and 57.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.21 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 53.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.15 ms. Allocated memory is still 88.1 MB. Free memory was 53.5 MB in the beginning and 50.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1258.28 ms. Allocated memory is still 88.1 MB. Free memory was 50.1 MB in the beginning and 49.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4275.05 ms. Allocated memory was 88.1 MB in the beginning and 117.4 MB in the end (delta: 29.4 MB). Free memory was 48.4 MB in the beginning and 84.7 MB in the end (delta: -36.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 78.29 ms. Allocated memory is still 117.4 MB. Free memory was 84.7 MB in the beginning and 79.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 669]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [mutexes={7:0}] [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={7:0}] [L578] return ptr; VAL [mutexes={7:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={7:0}] [L578] return ptr; VAL [mutexes={7:0}] [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={7:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={7:0}] [L660] return 0; VAL [mutexes={7:0}] [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={7:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={7:0}] [L660] return 0; VAL [mutexes={7:0}] [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={7:0}] [L578] return ptr; VAL [mutexes={7:0}] [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new [L608] head->next [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new VAL [mutexes={7:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={7:0}] [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [mutexes={7:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [mutexes={7:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L669] reach_error() VAL [mutexes={7:0}] - UnprovableResult [Line: 669]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 673]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 673]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 677]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 264 SDslu, 374 SDs, 0 SdLazy, 132 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 117 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 13 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-03 03:56:31,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bb5055-a05a-4ba6-8341-fa70044707ad/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE