./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex.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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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 cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:40:41,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:40:41,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:40:41,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:40:41,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:40:41,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:40:41,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:40:41,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:40:41,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:40:41,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:40:41,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:40:41,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:40:41,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:40:41,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:40:41,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:40:41,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:40:41,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:40:41,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:40:41,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:40:41,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:40:41,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:40:41,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:40:41,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:40:41,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:40:41,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:40:41,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:40:41,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:40:41,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:40:41,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:40:41,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:40:41,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:40:41,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:40:41,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:40:41,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:40:41,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:40:41,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:40:41,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:40:41,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:40:41,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:40:41,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:40:41,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:40:41,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:40:41,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:40:41,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:40:41,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:40:41,990 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:40:41,990 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:40:41,990 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:40:41,990 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:40:41,991 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:40:41,997 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:40:41,997 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:40:41,998 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:40:41,998 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:40:41,999 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:40:41,999 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:40:41,999 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:40:42,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:40:42,000 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:40:42,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:40:42,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:40:42,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:40:42,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:40:42,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:40:42,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:40:42,001 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:40:42,002 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:40:42,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:40:42,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:40:42,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:40:42,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:40:42,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:40:42,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:40:42,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:40:42,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:40:42,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:40:42,005 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:40:42,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:40:42,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:40:42,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:40:42,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:40:42,006 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2021-11-03 05:40:42,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:40:42,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:40:42,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:40:42,320 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:40:42,321 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:40:42,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex.i [2021-11-03 05:40:42,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/23d84cc1d/ecdc1b892a0e40479135bea6bb09abef/FLAGc38ff7372 [2021-11-03 05:40:42,910 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:40:42,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i [2021-11-03 05:40:42,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/23d84cc1d/ecdc1b892a0e40479135bea6bb09abef/FLAGc38ff7372 [2021-11-03 05:40:43,204 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/23d84cc1d/ecdc1b892a0e40479135bea6bb09abef [2021-11-03 05:40:43,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:40:43,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:40:43,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:43,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:40:43,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:40:43,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:43" (1/1) ... [2021-11-03 05:40:43,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512d4ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:43, skipping insertion in model container [2021-11-03 05:40:43,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:43" (1/1) ... [2021-11-03 05:40:43,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:40:43,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:40:43,619 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2021-11-03 05:40:43,623 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2021-11-03 05:40:43,624 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2021-11-03 05:40:43,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:43,636 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 05:40:43,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@777a8eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:43, skipping insertion in model container [2021-11-03 05:40:43,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:43,638 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:40:43,640 INFO L168 Benchmark]: Toolchain (without parser) took 430.60 ms. Allocated memory is still 102.8 MB. Free memory was 61.6 MB in the beginning and 73.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:40:43,640 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 79.2 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:40:43,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.09 ms. Allocated memory is still 102.8 MB. Free memory was 61.4 MB in the beginning and 73.8 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:40:43,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 79.2 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.09 ms. Allocated memory is still 102.8 MB. Free memory was 61.4 MB in the beginning and 73.8 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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 cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:40:45,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:40:45,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:40:45,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:40:45,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:40:45,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:40:45,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:40:45,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:40:45,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:40:45,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:40:45,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:40:45,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:40:45,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:40:45,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:40:45,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:40:45,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:40:45,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:40:45,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:40:45,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:40:45,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:40:45,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:40:45,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:40:45,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:40:45,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:40:45,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:40:45,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:40:45,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:40:45,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:40:45,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:40:45,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:40:45,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:40:45,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:40:45,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:40:45,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:40:45,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:40:45,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:40:45,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:40:45,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:40:45,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:40:45,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:40:45,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:40:45,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:40:45,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:40:45,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:40:45,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:40:45,955 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:40:45,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:40:45,955 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:40:45,956 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:40:45,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:40:45,956 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:40:45,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:40:45,958 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:40:45,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:40:45,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:40:45,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:40:45,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:40:45,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:40:45,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:40:45,960 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:40:45,960 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:40:45,960 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:40:45,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:40:45,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:40:45,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:40:45,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:40:45,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:40:45,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:40:45,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:40:45,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:40:45,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:40:45,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:40:45,962 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:40:45,962 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:40:45,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:40:45,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:40:45,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:40:45,963 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2021-11-03 05:40:46,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:40:46,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:40:46,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:40:46,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:40:46,331 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:40:46,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex.i [2021-11-03 05:40:46,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/0620ce8ef/e81169a659da4f87a1c1a95374bd1f99/FLAG02b841507 [2021-11-03 05:40:47,072 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:40:47,073 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i [2021-11-03 05:40:47,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/0620ce8ef/e81169a659da4f87a1c1a95374bd1f99/FLAG02b841507 [2021-11-03 05:40:47,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/data/0620ce8ef/e81169a659da4f87a1c1a95374bd1f99 [2021-11-03 05:40:47,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:40:47,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:40:47,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:47,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:40:47,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:40:47,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:47,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11535216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47, skipping insertion in model container [2021-11-03 05:40:47,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:47,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:40:47,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:40:47,823 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2021-11-03 05:40:47,831 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2021-11-03 05:40:47,832 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2021-11-03 05:40:47,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:47,854 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:40:47,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:40:47,892 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2021-11-03 05:40:47,893 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2021-11-03 05:40:47,894 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2021-11-03 05:40:47,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:47,898 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:40:47,939 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2021-11-03 05:40:47,940 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2021-11-03 05:40:47,941 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_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2021-11-03 05:40:47,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:47,978 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:40:47,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47 WrapperNode [2021-11-03 05:40:47,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:47,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:40:47,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:40:47,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:40:47,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:40:48,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:40:48,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:40:48,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:40:48,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:40:48,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:40:48,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:40:48,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:40:48,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (1/1) ... [2021-11-03 05:40:48,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:40:48,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:40:48,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:40:48,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:40:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:40:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:40:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:40:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:40:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:40:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:40:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:40:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:40:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:40:49,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:40:49,393 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-11-03 05:40:49,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:40:49 BoogieIcfgContainer [2021-11-03 05:40:49,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:40:49,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:40:49,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:40:49,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:40:49,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:40:47" (1/3) ... [2021-11-03 05:40:49,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23251015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:40:49, skipping insertion in model container [2021-11-03 05:40:49,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:47" (2/3) ... [2021-11-03 05:40:49,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23251015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:40:49, skipping insertion in model container [2021-11-03 05:40:49,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:40:49" (3/3) ... [2021-11-03 05:40:49,403 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2021-11-03 05:40:49,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:40:49,409 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-03 05:40:49,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:40:49,460 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 05:40:49,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 05:40:49,475 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 05:40:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 05:40:49,480 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:40:49,481 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:40:49,481 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 05:40:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:40:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash 912087840, now seen corresponding path program 1 times [2021-11-03 05:40:49,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:40:49,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120376671] [2021-11-03 05:40:49,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:40:49,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:40:49,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:40:49,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:40:49,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:40:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:40:49,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:40:49,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:40:49,737 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 05:40:49,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:40:49,779 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 05:40:49,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:40:49,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120376671] [2021-11-03 05:40:49,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120376671] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:40:49,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:40:49,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:40:49,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826499140] [2021-11-03 05:40:49,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:40:49,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:40:49,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:40:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:40:49,802 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 05:40:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:40:49,825 INFO L93 Difference]: Finished difference Result 172 states and 239 transitions. [2021-11-03 05:40:49,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:40:49,827 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 05:40:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:40:49,835 INFO L225 Difference]: With dead ends: 172 [2021-11-03 05:40:49,835 INFO L226 Difference]: Without dead ends: 84 [2021-11-03 05:40:49,841 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 05:40:49,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-03 05:40:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-11-03 05:40:49,886 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 05:40:49,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2021-11-03 05:40:49,899 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 14 [2021-11-03 05:40:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:40:49,900 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2021-11-03 05:40:49,900 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 05:40:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2021-11-03 05:40:49,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 05:40:49,901 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:40:49,901 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:40:49,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:40:50,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:40:50,115 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 05:40:50,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:40:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 793647061, now seen corresponding path program 1 times [2021-11-03 05:40:50,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:40:50,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104988163] [2021-11-03 05:40:50,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:40:50,117 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:40:50,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:40:50,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:40:50,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:40:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:40:50,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:40:50,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:40:50,281 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 05:40:50,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:40:50,311 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 05:40:50,312 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:40:50,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104988163] [2021-11-03 05:40:50,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104988163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:40:50,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:40:50,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:40:50,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105191195] [2021-11-03 05:40:50,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:40:50,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:40:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:40:50,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:40:50,316 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 05:40:50,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:40:50,415 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2021-11-03 05:40:50,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:40:50,423 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 05:40:50,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:40:50,425 INFO L225 Difference]: With dead ends: 135 [2021-11-03 05:40:50,425 INFO L226 Difference]: Without dead ends: 131 [2021-11-03 05:40:50,426 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 05:40:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-03 05:40:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88. [2021-11-03 05:40:50,436 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 05:40:50,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2021-11-03 05:40:50,437 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 14 [2021-11-03 05:40:50,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:40:50,437 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2021-11-03 05:40:50,437 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 05:40:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2021-11-03 05:40:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 05:40:50,438 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:40:50,438 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:40:50,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:40:50,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:40:50,655 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 05:40:50,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:40:50,655 INFO L85 PathProgramCache]: Analyzing trace with hash 795255775, now seen corresponding path program 1 times [2021-11-03 05:40:50,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:40:50,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6376850] [2021-11-03 05:40:50,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:40:50,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:40:50,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:40:50,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:40:50,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:40:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:40:50,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 05:40:50,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:40:51,015 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:40:51,016 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 05:40:51,024 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 05:40:51,076 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 05:40:51,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:40:51,231 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 05:40:51,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:40:51,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6376850] [2021-11-03 05:40:51,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6376850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:40:51,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:40:51,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 05:40:51,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741475967] [2021-11-03 05:40:51,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:40:51,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:40:51,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:40:51,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:40:51,234 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 05:40:52,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:40:52,231 INFO L93 Difference]: Finished difference Result 254 states and 301 transitions. [2021-11-03 05:40:52,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:40:52,233 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 05:40:52,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:40:52,236 INFO L225 Difference]: With dead ends: 254 [2021-11-03 05:40:52,236 INFO L226 Difference]: Without dead ends: 175 [2021-11-03 05:40:52,237 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 05:40:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-03 05:40:52,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 101. [2021-11-03 05:40:52,264 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 05:40:52,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2021-11-03 05:40:52,266 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 14 [2021-11-03 05:40:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:40:52,266 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2021-11-03 05:40:52,266 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 05:40:52,267 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2021-11-03 05:40:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 05:40:52,268 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:40:52,268 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 05:40:52,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:40:52,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:40:52,469 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 05:40:52,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:40:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1115638045, now seen corresponding path program 1 times [2021-11-03 05:40:52,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:40:52,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036106794] [2021-11-03 05:40:52,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:40:52,471 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:40:52,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:40:52,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:40:52,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9a3485-df3b-4a5e-9dd0-ce64cd1df728/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:40:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:40:52,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-03 05:40:52,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:40:52,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-03 05:40:52,918 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:40:52,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 25 treesize of output 25 [2021-11-03 05:40:53,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:40:55,981 INFO L354 Elim1Store]: treesize reduction 306, result has 13.8 percent of original size [2021-11-03 05:40:55,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 652 treesize of output 401 [2021-11-03 05:40:56,269 INFO L354 Elim1Store]: treesize reduction 432, result has 28.7 percent of original size [2021-11-03 05:40:56,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 839 treesize of output 490 [2021-11-03 05:40:56,511 INFO L354 Elim1Store]: treesize reduction 28, result has 75.7 percent of original size [2021-11-03 05:40:56,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 149 treesize of output 185 [2021-11-03 05:40:56,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:40:56,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:40:56,847 INFO L354 Elim1Store]: treesize reduction 14, result has 54.8 percent of original size [2021-11-03 05:40:56,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 56 [2021-11-03 05:40:57,399 INFO L354 Elim1Store]: treesize reduction 57, result has 24.0 percent of original size [2021-11-03 05:40:57,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 299 treesize of output 210 [2021-11-03 05:40:58,042 INFO L354 Elim1Store]: treesize reduction 58, result has 4.9 percent of original size [2021-11-03 05:40:58,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 170 treesize of output 82 [2021-11-03 05:40:58,099 INFO L354 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2021-11-03 05:40:58,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 159 treesize of output 78 [2021-11-03 05:41:12,477 WARN L207 SmtUtils]: Spent 14.04 s on a formula simplification that was a NOOP. DAG size: 72 [2021-11-03 05:41:14,235 INFO L354 Elim1Store]: treesize reduction 302, result has 39.7 percent of original size [2021-11-03 05:41:14,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 3 disjoint index pairs (out of 55 index pairs), introduced 14 new quantified variables, introduced 55 case distinctions, treesize of input 290 treesize of output 353 [2021-11-03 05:41:14,970 INFO L354 Elim1Store]: treesize reduction 178, result has 46.9 percent of original size [2021-11-03 05:41:14,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 353 treesize of output 425 [2021-11-03 05:41:30,708 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 05:41:30,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:32,868 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:41:32,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 34524992 treesize of output 29955485