./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan --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 84f62959dc20df3dcecaea8b03619fc02cb1358b ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan --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 84f62959dc20df3dcecaea8b03619fc02cb1358b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:08:04,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:04,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:04,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:04,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:04,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:04,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:05,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:05,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:05,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:05,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:05,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:05,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:05,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:05,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:05,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:05,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:05,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:05,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:05,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:05,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:05,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:05,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:05,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:05,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:05,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:05,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:05,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:05,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:05,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:05,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:05,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:05,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:05,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:05,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:05,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:05,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:05,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:05,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:05,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:05,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:05,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:05,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:05,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:05,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:05,116 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:05,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:05,117 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:05,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:05,117 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:05,118 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:05,118 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:05,119 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:05,119 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:05,120 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:05,120 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:05,120 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:05,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:05,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:05,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:05,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:05,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:05,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:05,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:05,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:05,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:05,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:05,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:05,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:05,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:05,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:05,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:05,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:05,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:05,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:05,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:05,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:05,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:05,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:05,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:05,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:05,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:05,128 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-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-11-22 13:08:05,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:05,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:05,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:05,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:05,416 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:05,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-22 13:08:05,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/e59e32290/ae2f5ccd45a04260b0253c4cc36c0271/FLAG9db50d39b [2020-11-22 13:08:06,008 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:06,009 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-22 13:08:06,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/e59e32290/ae2f5ccd45a04260b0253c4cc36c0271/FLAG9db50d39b [2020-11-22 13:08:06,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/e59e32290/ae2f5ccd45a04260b0253c4cc36c0271 [2020-11-22 13:08:06,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:06,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:06,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:06,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:06,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:06,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:06" (1/1) ... [2020-11-22 13:08:06,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd29366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:06, skipping insertion in model container [2020-11-22 13:08:06,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:06" (1/1) ... [2020-11-22 13:08:06,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:06,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:06,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:06,772 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) [2020-11-22 13:08:06,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61b84528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:06, skipping insertion in model container [2020-11-22 13:08:06,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:06,774 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:08:06,776 INFO L168 Benchmark]: Toolchain (without parser) took 461.15 ms. Allocated memory is still 96.5 MB. Free memory was 62.5 MB in the beginning and 70.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:06,777 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:06,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.79 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 70.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:06,780 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 73.4 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.79 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 70.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:08:08,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:08,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:09,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:09,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:09,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:09,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:09,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:09,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:09,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:09,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:09,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:09,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:09,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:09,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:09,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:09,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:09,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:09,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:09,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:09,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:09,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:09,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:09,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:09,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:09,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:09,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:09,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:09,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:09,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:09,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:09,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:09,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:09,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:09,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:09,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:09,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:09,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:09,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:09,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:09,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:09,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:09,178 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:09,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:09,181 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:09,181 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:09,181 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:09,182 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:09,182 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:09,182 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:09,182 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:09,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:09,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:09,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:09,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:09,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:09,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:09,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:09,186 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:09,186 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:09,187 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:09,187 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:09,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:09,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:09,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:09,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:09,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:09,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:09,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:09,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:09,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:09,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:09,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:09,190 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:09,190 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:09,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:09,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:09,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:09,191 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-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2020-11-22 13:08:09,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:09,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:09,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:09,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:09,592 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:09,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-22 13:08:09,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/75dcf053b/5711a55ee0d54099a1ea2735193ec053/FLAG609b451b0 [2020-11-22 13:08:10,255 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:10,255 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-11-22 13:08:10,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/75dcf053b/5711a55ee0d54099a1ea2735193ec053/FLAG609b451b0 [2020-11-22 13:08:10,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/data/75dcf053b/5711a55ee0d54099a1ea2735193ec053 [2020-11-22 13:08:10,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:10,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:10,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:10,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:10,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:10,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:10" (1/1) ... [2020-11-22 13:08:10,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ad7b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:10, skipping insertion in model container [2020-11-22 13:08:10,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:10" (1/1) ... [2020-11-22 13:08:10,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:10,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:10,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:11,006 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:08:11,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:11,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:11,068 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:11,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:11,229 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:11,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11 WrapperNode [2020-11-22 13:08:11,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:11,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:11,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:11,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:11,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:11,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:11,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:11,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:11,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... [2020-11-22 13:08:11,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:11,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:11,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:11,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:11,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:08:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-22 13:08:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-22 13:08:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:08:11,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-22 13:08:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:08:11,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:11,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:12,880 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:12,881 INFO L298 CfgBuilder]: Removed 92 assume(true) statements. [2020-11-22 13:08:12,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:12 BoogieIcfgContainer [2020-11-22 13:08:12,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:12,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:12,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:12,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:12,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:10" (1/3) ... [2020-11-22 13:08:12,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11772e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:12, skipping insertion in model container [2020-11-22 13:08:12,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:11" (2/3) ... [2020-11-22 13:08:12,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11772e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:12, skipping insertion in model container [2020-11-22 13:08:12,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:12" (3/3) ... [2020-11-22 13:08:12,895 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-11-22 13:08:12,907 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:12,912 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-22 13:08:12,928 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-22 13:08:12,970 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:12,970 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:12,970 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:12,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:12,970 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:12,970 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:12,970 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:12,971 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-11-22 13:08:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:08:12,999 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:13,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:13,000 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:13,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:13,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1790047856, now seen corresponding path program 1 times [2020-11-22 13:08:13,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:13,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865479902] [2020-11-22 13:08:13,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:13,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:08:13,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:13,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:13,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865479902] [2020-11-22 13:08:13,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:13,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:08:13,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212013280] [2020-11-22 13:08:13,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:13,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:13,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:13,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:13,294 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-11-22 13:08:13,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:13,326 INFO L93 Difference]: Finished difference Result 187 states and 264 transitions. [2020-11-22 13:08:13,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:13,327 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-22 13:08:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:13,338 INFO L225 Difference]: With dead ends: 187 [2020-11-22 13:08:13,338 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 13:08:13,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 13:08:13,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-22 13:08:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-22 13:08:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 106 transitions. [2020-11-22 13:08:13,396 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 106 transitions. Word has length 15 [2020-11-22 13:08:13,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:13,396 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 106 transitions. [2020-11-22 13:08:13,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:13,396 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2020-11-22 13:08:13,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:08:13,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:13,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:13,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:08:13,614 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:13,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:13,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1166744709, now seen corresponding path program 1 times [2020-11-22 13:08:13,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:13,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975654538] [2020-11-22 13:08:13,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:13,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:08:13,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:13,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:13,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:13,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:13,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975654538] [2020-11-22 13:08:13,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:13,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:08:13,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689432008] [2020-11-22 13:08:13,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:08:13,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:13,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:08:13,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:08:13,823 INFO L87 Difference]: Start difference. First operand 89 states and 106 transitions. Second operand 4 states. [2020-11-22 13:08:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:13,997 INFO L93 Difference]: Finished difference Result 145 states and 167 transitions. [2020-11-22 13:08:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:08:13,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-22 13:08:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:14,000 INFO L225 Difference]: With dead ends: 145 [2020-11-22 13:08:14,000 INFO L226 Difference]: Without dead ends: 139 [2020-11-22 13:08:14,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:08:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-22 13:08:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 93. [2020-11-22 13:08:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-22 13:08:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2020-11-22 13:08:14,014 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 15 [2020-11-22 13:08:14,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:14,014 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2020-11-22 13:08:14,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:08:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2020-11-22 13:08:14,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:08:14,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:14,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:14,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:08:14,229 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:14,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1116874575, now seen corresponding path program 1 times [2020-11-22 13:08:14,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:14,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868635531] [2020-11-22 13:08:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:14,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-22 13:08:14,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:14,427 INFO L384 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 [2020-11-22 13:08:14,429 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:08:14,449 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:08:14,461 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:08:14,462 INFO L384 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 [2020-11-22 13:08:14,463 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:08:14,474 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:08:14,474 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:08:14,474 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:10 [2020-11-22 13:08:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:14,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:14,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868635531] [2020-11-22 13:08:14,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:14,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:08:14,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854901230] [2020-11-22 13:08:14,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:08:14,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:14,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:08:14,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:08:14,555 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand 6 states. [2020-11-22 13:08:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:16,349 INFO L93 Difference]: Finished difference Result 270 states and 317 transitions. [2020-11-22 13:08:16,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:08:16,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-22 13:08:16,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:16,364 INFO L225 Difference]: With dead ends: 270 [2020-11-22 13:08:16,364 INFO L226 Difference]: Without dead ends: 186 [2020-11-22 13:08:16,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:08:16,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-11-22 13:08:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 105. [2020-11-22 13:08:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-22 13:08:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2020-11-22 13:08:16,383 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 15 [2020-11-22 13:08:16,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:16,384 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2020-11-22 13:08:16,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:08:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2020-11-22 13:08:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 13:08:16,385 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:16,385 INFO L422 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, 1] [2020-11-22 13:08:16,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:08:16,602 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:16,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:16,603 INFO L82 PathProgramCache]: Analyzing trace with hash -293940095, now seen corresponding path program 1 times [2020-11-22 13:08:16,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:16,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21525644] [2020-11-22 13:08:16,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:08:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:16,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:17,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:17,152 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:08:17,160 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:17,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:08:17,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:17 BoogieIcfgContainer [2020-11-22 13:08:17,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:17,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:17,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:17,495 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:17,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:12" (3/4) ... [2020-11-22 13:08:17,498 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:08:17,595 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_281541db-1fb5-4656-a0b8-741bd85fc9a5/bin/utaipan/witness.graphml [2020-11-22 13:08:17,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:17,596 INFO L168 Benchmark]: Toolchain (without parser) took 7083.70 ms. Allocated memory was 58.7 MB in the beginning and 107.0 MB in the end (delta: 48.2 MB). Free memory was 36.8 MB in the beginning and 76.2 MB in the end (delta: -39.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,597 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:17,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.03 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 36.6 MB in the beginning and 56.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.63 ms. Allocated memory is still 79.7 MB. Free memory was 56.0 MB in the beginning and 52.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,598 INFO L168 Benchmark]: Boogie Preprocessor took 92.02 ms. Allocated memory is still 79.7 MB. Free memory was 52.5 MB in the beginning and 49.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,599 INFO L168 Benchmark]: RCFGBuilder took 1491.56 ms. Allocated memory is still 79.7 MB. Free memory was 48.7 MB in the beginning and 48.4 MB in the end (delta: 289.8 kB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,600 INFO L168 Benchmark]: TraceAbstraction took 4610.03 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 47.8 MB in the beginning and 80.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,600 INFO L168 Benchmark]: Witness Printer took 100.10 ms. Allocated memory is still 107.0 MB. Free memory was 80.3 MB in the beginning and 76.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:17,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 716.03 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 36.6 MB in the beginning and 56.0 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.63 ms. Allocated memory is still 79.7 MB. Free memory was 56.0 MB in the beginning and 52.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.02 ms. Allocated memory is still 79.7 MB. Free memory was 52.5 MB in the beginning and 49.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1491.56 ms. Allocated memory is still 79.7 MB. Free memory was 48.7 MB in the beginning and 48.4 MB in the end (delta: 289.8 kB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4610.03 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 47.8 MB in the beginning and 80.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. * Witness Printer took 100.10 ms. Allocated memory is still 107.0 MB. Free memory was 80.3 MB in the beginning and 76.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [mutexes={2147483647:0}] [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={2147483647:0}] [L578] return ptr; VAL [mutexes={2147483647:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={2147483647:0}] [L578] return ptr; VAL [mutexes={2147483647:0}] [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={2147483647:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={2147483647:0}] [L660] return 0; VAL [mutexes={2147483647:0}] [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={2147483647:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={2147483647:0}] [L660] return 0; VAL [mutexes={2147483647:0}] [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={2147483647:0}] [L578] return ptr; VAL [mutexes={2147483647:0}] [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={2147483647:0}] [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={2147483647:0}] [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [mutexes={2147483647:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [mutexes={2147483647:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L562] COND FALSE !(0) VAL [mutexes={2147483647:0}] [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) VAL [mutexes={2147483647:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 220 SDslu, 445 SDs, 0 SdLazy, 146 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, 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, 127 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 5026 SizeOfPredicates, 13 NumberOfNonLiveVariables, 254 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! Received shutdown request...